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com.po6/mailbox

PO6 Mailbox

Give AI agents secure access to your email via private aliases with dedicated mailbox storage.

JSON report • History API • Manage this server • Global feed

Status

Healthy

Score

77.1

Transport

streamable-http

Tools

Production readiness

Verdict

Needs remediation

Current validation evidence shows operational or discovery gaps that should be fixed first.

Critical alerts

Production verdicts degrade quickly when critical alerts are active.

Evidence confidence

Confidence score

65.0

Based on 20 recent validations, 26 captured checks, and validation age of 602.2 hours.

Live checks captured

More direct checks increase trust in the current verdict.

Validation age

602.2h

Lower age means fresher evidence.

Recommended for

OpenAI connectors

OpenAI connectors is marked compatible with score 89.

Claude Desktop

Claude Desktop is marked compatible with score 83.

Smithery

Smithery is marked compatible with score 80.

Generic Streamable HTTP

Generic Streamable HTTP is marked compatible with score 100.

Client readiness verdicts

Ready for ChatGPT custom connector

Ready

Transport compliance should be in good shape.

Confidence: medium (65.0)

Evidence provenance

Winner: live_validation

Supporting sources: live_validation, history, server_card

Disagreements: none

initialize • OK
tools_list • OK
transport_compliance_probe • Error
step_up_auth_probe • OK
connector_replay_probe • OK — Frozen tool snapshots must survive refresh.
request_association_probe • Missing — Roots, sampling, and elicitation should stay request-scoped.

Ready for Claude remote MCP

Ready

Transport behavior should match Claude-compatible HTTP expectations.

Confidence: medium (65.0)

Evidence provenance

Winner: live_validation

Supporting sources: live_validation, history, server_card

Disagreements: none

initialize • OK
tools_list • OK
transport_compliance_probe • Error

Unsafe for write actions

Current write surface is bounded enough for cautious review.

Confidence: medium (65.0)

Evidence provenance

Winner: live_validation

Supporting sources: live_validation, history

Disagreements: none

action_safety_probe • Warning

Snapshot churn risk

Low

No material tool-surface churn detected in the latest comparison.

Confidence: medium (65.0)

Evidence provenance

Winner: history

Supporting sources: history, live_validation

Disagreements: none

tool_snapshot_probe • OK
connector_replay_probe • OK

Why not ready by client

ChatGPT custom connector

Ready

Remediation checklist

No explicit blockers recorded.

Claude remote MCP

Ready

Remediation checklist

No explicit blockers recorded.

Write-safe publishing

Ready

Remediation checklist

No explicit blockers recorded.

Verdict traces

Production verdict

Needs remediation

Current validation evidence shows operational or discovery gaps that should be fixed first.

Confidence: medium (65.0)

Winning source: live_validation

Triggering alerts

validation_stale • medium • Validation evidence is stale

Client verdict trace table

Verdict	Status	Checks	Winning source	Conflicts
`openai_connectors`	Ready	initialize, tools_list, transport_compliance_probe, step_up_auth_probe, connector_replay_probe, request_association_probe	live_validation	none
`claude_desktop`	Ready	initialize, tools_list, transport_compliance_probe	live_validation	none
`unsafe_for_write_actions`	No	action_safety_probe	live_validation	none
`snapshot_churn_risk`	Low	tool_snapshot_probe, connector_replay_probe	history	none

Publishability policy profiles

ChatGPT custom connector publishability

Ready

Transport compliance should be in good shape.

Search Fetch Only: No
Write Actions Present: Yes
Oauth Configured: Yes
Admin Refresh Required: No
Safe For Company Knowledge: No
Safe For Messages Api Remote Mcp: No

Claude remote MCP publishability

Ready

Transport behavior should match Claude-compatible HTTP expectations.

Search Fetch Only: No
Write Actions Present: Yes
Oauth Configured: Yes
Admin Refresh Required: No
Safe For Company Knowledge: No
Safe For Messages Api Remote Mcp: No

Compatibility fixtures

ChatGPT custom connector fixture

Passes

Transport compliance should be in good shape.

remote_http_endpoint: Passes
oauth_discovery: Passes
frozen_tool_snapshot_refresh: Passes
request_association: Passes

Anthropic remote MCP fixture

Degraded

Transport behavior should match Claude-compatible HTTP expectations.

remote_transport: Passes
tool_discovery: Passes
auth_connect: Passes
safe_write_review: Passes

Authenticated validation sessions

Latest profile

remote_mcp

Authenticated session used

Public score isolation

✓

Preview endpoint

/v1/verify

CI preview endpoint

/v1/ci/preview

Public server reputation

Validation success 7d

n/a

Validation success 30d

1.0

Mean time to recover

n/a

Breaking diffs 30d

Registry drift frequency 30d

Snapshot changes 30d

Incident & change feed

Timestamp	Event	Details
Apr 09, 2026 12:56:37 AM UTC	Latest validation: healthy	Score 77.1 with status healthy.

Capabilities

OAuth: ✓
DCR/CIMD: ✓
Prompts: ✕
Homepage: https://po6.com
Docs: none
Support: none
Icon: none
Remote endpoint: https://mcp.po6.com
Server card: none

Use-case taxonomy

development search communication web

Security posture

Tools analyzed

High-risk tools

Destructive tools

Exec tools

Egress tools

Secret tools

Bulk-access tools

Risk distribution

low:9, medium:23, high:7

Tool capability & risk inventory

Tool	Capabilities	Risk	Findings	Notes
`list_mailboxes`	read	Low	none	No explicit safeguard hints detected.
`get_mailbox_stats`	read filesystem	Low	none	No explicit safeguard hints detected.
`list_emails`	read write filesystem export	Medium	bulk data access freeform input surface filesystem mutation	Safeguards hinted in metadata.
`get_email`	read	Low	none	No explicit safeguard hints detected.
`search_emails`	read write exec export	High	command execution bulk data access freeform input surface	No explicit safeguard hints detected.
`mark_email`	read write	Medium	none	No explicit safeguard hints detected.
`move_email`	read filesystem export	Medium	bulk data access freeform input surface	No explicit safeguard hints detected.
`delete_email`	write delete secrets	High	destructive operation secret material access	Safeguards hinted in metadata.
`list_folders`	read filesystem	Low	none	No explicit safeguard hints detected.
`list_email_lists`	read admin	Medium	none	No explicit safeguard hints detected.
`get_email_list_contacts`	read write export	Medium	bulk data access	Safeguards hinted in metadata.
`compose_email`	read write	Medium	none	No explicit safeguard hints detected.
`reply_email`	write	Medium	none	No explicit safeguard hints detected.
`forward_email`	read	Low	none	No explicit safeguard hints detected.
`list_templates`	read	Low	none	No explicit safeguard hints detected.
`get_template`	read	Low	freeform input surface	No explicit safeguard hints detected.
`create_draft`	read write admin	Medium	freeform input surface admin mutation	No explicit safeguard hints detected.
`list_drafts`	read write admin export	Medium	bulk data access admin mutation	No explicit safeguard hints detected.
`list_sent_emails`	read write admin export	Medium	bulk data access admin mutation	Safeguards hinted in metadata.
`list_aliases`	read write admin	Medium	admin mutation	No explicit safeguard hints detected.
`get_alias`	read write network	Medium	none	No explicit safeguard hints detected.
`update_alias`	write delete	Medium	destructive operation	No explicit safeguard hints detected.
`list_domains`	read admin	Medium	none	No explicit safeguard hints detected.
`get_domain`	read network	Medium	arbitrary network egress	No explicit safeguard hints detected.
`update_domain_alias`	write delete network	High	destructive operation arbitrary network egress	No explicit safeguard hints detected.
`update_catchall`	write delete network	High	destructive operation arbitrary network egress	No explicit safeguard hints detected.
`list_landing_page_templates`	read	Low	none	No explicit safeguard hints detected.
`get_landing_page_template`	read	Low	freeform input surface	No explicit safeguard hints detected.
`list_landing_pages`	read write network admin export	Medium	bulk data access admin mutation	Safeguards hinted in metadata.
`get_landing_page`	read write export	Medium	bulk data access	No explicit safeguard hints detected.
`get_landing_page_stats`	read export	Medium	bulk data access	No explicit safeguard hints detected.
`list_landing_page_leads`	read write export	Medium	bulk data access	Safeguards hinted in metadata.
`create_landing_page`	write network	Medium	arbitrary network egress freeform input surface	No explicit safeguard hints detected.
`update_landing_page`	read write network export	High	arbitrary network egress bulk data access freeform input surface	No explicit safeguard hints detected.
`publish_landing_page`	network secrets export	Medium	bulk data access secret material access	Safeguards hinted in metadata.
`unpublish_landing_page`	secrets export	Medium	bulk data access secret material access	Safeguards hinted in metadata.
`assign_landing_page_domain`	network secrets export	High	arbitrary network egress bulk data access secret material access freeform input surface	Safeguards hinted in metadata.
`archive_landing_page`	write delete secrets export	High	destructive operation bulk data access secret material access	Safeguards hinted in metadata.
`download_landing_page`	filesystem export	Medium	bulk data access	No explicit safeguard hints detected.

Write-action governance

Governance status

Warning

Safe to publish

✓

Auth boundary

oauth_or_auth_required

Blast radius

High

High-risk tools

Confirmation signals

delete_email, create_draft, list_drafts, list_landing_page_templates, publish_landing_page, unpublish_landing_page, assign_landing_page_domain, archive_landing_page

Safeguard count

Status detail: 7 high-risk tool(s), 5 destructive tool(s), 1 exec-capable tool(s); auth boundary is oauth or auth required with 10 safeguard(s) and 8 confirmation signal(s).

Tool	Risk	Flags	Safeguards
`search_emails`	High	command execution bulk data access freeform input surface	no
`delete_email`	High	destructive operation secret material access	yes
`update_domain_alias`	High	destructive operation arbitrary network egress	no
`update_catchall`	High	destructive operation arbitrary network egress	no
`update_landing_page`	High	arbitrary network egress bulk data access freeform input surface	no
`assign_landing_page_domain`	High	arbitrary network egress bulk data access secret material access freeform input surface	yes
`archive_landing_page`	High	destructive operation bulk data access secret material access	yes

Action-controls diff

Snapshot changed

Disabled-by-default candidates

none

Manual review candidates

none

New actions

Action	Risk	Flags
No newly added actions.

Changed actions

Action	Change types	Risk
No materially changed actions.

Why this score?

Access & Protocol

38.5/44

Connectivity, auth, and transport expectations for common clients.

Interface Quality

38.2/56

How well the tool/resource interface communicates and behaves under automation.

Security Posture

22/36

How safely the exposed tool surface handles destructive actions, egress, execution, secrets, and risky inputs.

Reliability & Trust

24/24

Operational stability, consistency, and trustworthiness over time.

Discovery & Governance

22.5/28

How well the server is documented, listed, and governed in public registries.

Adoption & Market

6/8

Adoption clues and public evidence that the server is intended for external use.

Algorithmic score breakdown

Auth Operability

4/4

Measures whether auth discovery and protected access behave predictably for clients.

Error Contract Quality

1.2/4

Grades machine-readable error structure, status alignment, and remediation hints.

Rate-Limit Semantics

2/4

Checks whether quota/throttle responses are deterministic and automation-friendly.

Schema Completeness

3/4

Completeness of tool descriptions, parameter docs, examples, and schema shape.

Backward Compatibility

4/4

Stability score across tool schema/name drift relative to prior validations.

SLO Health

4/4

Availability, latency, and burst-failure profile across recent validation history.

Security Hygiene

2/4

HTTPS posture, endpoint hygiene, and response-surface hardening checks.

Task Success

4/4

Can an agent reliably initialize, enumerate tools, and execute core MCP flows?

Trust Confidence

4/4

Confidence-adjusted reliability score that penalizes low evidence volume.

Abuse/Noise Resilience

4/4

How well the server preserves core behavior in the presence of noisy traffic patterns.

Prompt Contract

2/4

Quality of prompt metadata, argument shape, and prompt discoverability for clients.

Resource Contract

2/4

How completely resources and resource templates describe URIs, types, and usage shape.

Discovery Metadata

4/4

Homepage, docs, icon, repository, support, and license coverage for directory consumers.

Registry Consistency

2/4

Agreement between stored registry metadata, live server-card data, and current validation output.

Installability

4/4

How cleanly a real client can connect, initialize, enumerate tools, and proceed through auth.

Session Semantics

4/4

Determinism and state behavior across repeated MCP calls, including sticky-session surprises.

Tool Surface Design

3/4

Naming clarity, schema ergonomics, and parameter complexity across the tool surface.

Result Shape Stability

3/4

Stability of declared output schemas across validations, with penalties for drift or missing shapes.

OAuth Interop

4/4

Depth and client compatibility of OAuth/OIDC metadata beyond the minimal protected-resource check.

Recovery Semantics

1/4

Whether failures include actionable machine-readable next steps such as retry or upgrade guidance.

Maintenance Signal

4/4

Versioning, update recency, and historical validation cadence that indicate active stewardship.

Adoption Signal

3/4

Directory presence and distribution clues that suggest the server is intended for external use.

Freshness Confidence

4/4

Confidence that recent validations are current enough and dense enough to trust operationally.

Transport Fidelity

4/4

Whether declared transport metadata matches the observed endpoint behavior and response formats.

Spec Recency

2/4

How close the server’s claimed MCP protocol version is to the latest known public revision.

Session Resume

4/4

Whether Streamable HTTP session identifiers and resumed requests behave cleanly for real clients.

Step-Up Auth

4/4

Whether OAuth metadata and WWW-Authenticate challenges support granular, incremental consent instead of broad upfront scopes.

Transport Compliance

2.5/4

Checks session headers, protocol-version enforcement, session teardown, and expired-session behavior.

Utility Coverage

2/4

Signals support for completions, pagination, and task-oriented utility surfaces that larger clients increasingly expect.

Advanced Capability Coverage

3/4

Coverage of newer MCP surfaces like roots, sampling, elicitation, structured output, and related metadata.

Connector Publishability

3/4

How ready the server looks for client catalogs and managed connector programs.

Tool Snapshot Churn

4/4

Stability of the tool surface across recent validations, including add/remove and output-shape drift.

Connector Replay

4/4

Whether a previously published frozen connector snapshot would remain backward compatible after the latest tool refresh.

Request Association

3/4

Whether roots, sampling, and elicitation appear tied to active client requests instead of arriving unsolicited on idle sessions.

Interactive Flow Safety

3/4

Whether prompts and docs steer users toward safe auth flows instead of pasting secrets directly.

Action Safety

2/4

Risk-weighted view of destructive, exec, egress, and confirmation semantics across the tool surface.

Official Registry Presence

4/4

Whether the server appears directly or indirectly in the official MCP registry.

Provenance Divergence

4/4

How closely official registry metadata, the live server card, and public repo/package signals agree with each other.

Safety Transparency

2/4

Clarity of docs, auth disclosure, support links, and other trust signals visible to integrators.

Tool Capability Clarity

4/4

How clearly the tool surface communicates whether each action reads, writes, deletes, executes, or exports data.

Destructive Operation Safety

3/4

Penalizes delete/revoke/destroy style tools unless auth and safeguards reduce blast radius.

Egress / SSRF Resilience

2/4

Assesses arbitrary URL fetch, crawl, webhook, and remote-request exposure on the tool surface.

Execution / Sandbox Safety

3/4

Evaluates shell, code, script, and command-execution exposure and whether that surface appears contained.

Data Exfiltration Resilience

2/4

Assesses export, dump, backup, and bulk-read behavior against the surrounding auth and safeguard signals.

Least Privilege Scope

3/4

Rewards scoped auth metadata and penalizes broad or missing scopes around privileged tools.

Secret Handling Hygiene

2/4

Assesses secret-bearing tools, token leakage risk, and whether the public surface avoids obvious secret exposure.

Supply Chain Signal

2.5/4

Public metadata signal for repository, changelog, license, versioning, and recency that supports supply-chain trust.

Input Sanitization Safety

3/4

Penalizes risky freeform string inputs when schemas do not constrain URLs, code, paths, queries, or templates.

Tool Namespace Clarity

4/4

Measures naming uniqueness and ambiguity across the tool namespace to reduce collision and confusion risk.

Compatibility profiles

OpenAI Connectors

88.9

compatible

Transport compliance should be in good shape.

Connector URL: https://mcp.po6.com
# Complete OAuth in the client when prompted.
# Server: com.po6/mailbox

Claude Desktop

83.3

compatible

Transport behavior should match Claude-compatible HTTP expectations.

{
  "mcpServers": {
    "mailbox": {
      "command": "npx",
      "args": ["mcp-remote", "https://mcp.po6.com"]
    }
  }
}

Smithery

80.0

compatible

Machine-readable failure semantics should be present.

smithery mcp add "https://mcp.po6.com"

Generic Streamable HTTP

100.0

compatible

No major blockers detected.

curl -sS https://mcp.po6.com -H 'content-type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-03-26","capabilities":{},"clientInfo":{"name":"mcp-verify","version":"0.1.0"}}}'

Actionable remediation

Severity	Remediation	Why it matters	Recommended action
High	Add confirmation and dry-run semantics for risky actions	High-risk write, delete, exec, or egress tools should communicate safeguards clearly.	Inspect the latest validation evidence and resolve the client-visible regression. Playbook Inspect the latest validation evidence. Resolve the highest-severity client-facing gap first. Revalidate and confirm the score and verdict improve.
High	Align session and protocol behavior with Streamable HTTP expectations	Clients increasingly rely on MCP-Protocol-Version, session teardown, and expired-session semantics.	Align MCP-Protocol-Version, MCP-Session-Id, DELETE teardown, and expired-session handling with the transport spec. Playbook Return `Mcp-Session-Id` and `Mcp-Protocol-Version` headers consistently on streamable HTTP responses. Honor `DELETE` session teardown and return `404` when a deleted session is reused. Reject invalid protocol-version headers with `400 Bad Request`.
High	Associate roots, sampling, and elicitation with active client requests	Modern MCP guidance expects roots, sampling, and elicitation traffic to be tied to an active client request instead of arriving unsolicited on idle sessions.	Inspect the latest validation evidence and resolve the client-visible regression. Playbook Inspect the latest validation evidence. Resolve the highest-severity client-facing gap first. Revalidate and confirm the score and verdict improve.
High	Publish a complete server card	Missing or incomplete server-card metadata weakens discovery, documentation, and trust signals.	Serve /.well-known/mcp/server-card.json and include tools, prompts/resources, homepage, and support links. Playbook Publish `/.well-known/mcp/server-card.json`. Include homepage, repository, support, tools, prompts/resources, and auth metadata. Revalidate the server after publishing the card.
Medium	Adopt a current MCP protocol revision	Older protocol revisions reduce compatibility with newer clients and registry programs.	Inspect the latest validation evidence and resolve the client-visible regression. Playbook Inspect the latest validation evidence. Resolve the highest-severity client-facing gap first. Revalidate and confirm the score and verdict improve.
Medium	Close connector-publishing gaps	Connector catalogs care about protocol recency, session behavior, auth clarity, and tool-surface stability.	Inspect the latest validation evidence and resolve the client-visible regression. Playbook Inspect the latest validation evidence. Resolve the highest-severity client-facing gap first. Revalidate and confirm the score and verdict improve.
Medium	Publish OpenID configuration	OIDC metadata improves token validation and client compatibility.	Expose /.well-known/openid-configuration with issuer, jwks_uri, and supported grants. Playbook Inspect the latest validation evidence. Resolve the highest-severity client-facing gap first. Revalidate and confirm the score and verdict improve.
Medium	Repair prompts/list or stop advertising prompts	Prompt metadata should either work live or be removed from the advertised capability set.	Only advertise prompts if prompts/list works and prompt arguments are documented. Playbook Only advertise prompts that are actually accessible. Add prompt descriptions and argument docs. Run a live `prompts/list` check after any prompt changes.
Medium	Repair resources/list or stop advertising resources	Resource metadata should either work live or be removed from the advertised capability set.	Only advertise resources if resources/list works and resources expose stable URIs/types. Playbook Only advertise resources with stable URIs and read semantics. Add MIME/type hints where possible. Run a live `resources/list` and `resources/read` check after updates.
Medium	Respond to validation evidence is stale	Latest validation is 602.2 hours old.	Trigger a fresh validation run or increase scheduler priority for this server. Playbook Queue a new validation run now. Inspect whether the scheduler priority should be raised for this server. Do not rely on stale evidence for production decisions.
Low	Publish newer MCP capability signals	Roots, sampling, elicitation, structured outputs, and related metadata improve client understanding and ranking.	Inspect the latest validation evidence and resolve the client-visible regression. Playbook Inspect the latest validation evidence. Resolve the highest-severity client-facing gap first. Revalidate and confirm the score and verdict improve.

Point loss breakdown

Component	Current	Points missing
Recovery Semantics	1/4	-3.0
Error Contract	1.2/4	-2.8
Utility Coverage	2/4	-2.0
Spec Recency	2/4	-2.0
Security Hygiene	2/4	-2.0
Secret Handling Hygiene	2/4	-2.0
Safety Transparency	2/4	-2.0
Resource Contract	2/4	-2.0
Registry Consistency	2/4	-2.0
Rate Limit Semantics	2/4	-2.0
Prompt Contract	2/4	-2.0
Egress SSRF Resilience	2/4	-2.0

Validation diff

Score delta

Summary changed

Tool delta

Prompt delta

Auth mode changed

Write surface expanded

Protocol regressed

Registry drift changed

Regressed checks: none

Improved checks: none

Component	Previous	Latest	Delta
No component deltas between the latest two runs.

Tool snapshot diff & changelog

Snapshot changed

Added tools

none

Removed tools

none

Required-argument changes

Tool	Added required args	Removed required args
No required-argument changes detected.

Output-schema drift

Tool	Previous properties	Latest properties
No output-schema drift detected.

Connector replay

Status

Backward compatible

✓

Would break after refresh

Added tools

none

Removed tools

none

Additive output changes

none

Required-argument replay breaks

Tool	Added required args	Removed required args
No required-argument replay breaks detected.

Output-schema replay breaks

Tool	Removed properties	Added properties
No output-schema replay breaks detected.

Transport compliance drilldown

Probe status

Error

Transport

streamable-http

Session header

yes

Protocol header

Bad protocol response

200

DELETE teardown

405

Expired session retry

200

Last-Event-ID visible

Issues: missing_protocol_header, bad_protocol_not_rejected, delete_session_unexpected, expired_session_not_404

Request association

Status

Missing

Advertised capabilities

none

Observed idle methods

none

Violating methods

none

Probe HTTP status

n/a

Issues

none

Utility coverage

Probe status

Completions

not detected

Completion probe target: none

Pagination

not detected

No nextCursor evidence.

Tasks

Auth Required

Advertised: no

Benchmark tasks

Benchmark task	Status	Evidence
Discover tools	Passes	`initialize` • OK `tools_list` • OK
Read-only fetch flow	Degraded	`resource_read` • Missing `read_only_tool_surface` • OK
OAuth-required connect	Passes	`oauth_protected_resource` • OK `step_up_auth_probe` • OK
Safe write flow with confirmation	Degraded	`action_safety_probe` • Warning

Registry & provenance divergence

Probe status

Direct official match

yes

Drift fields

none

Field	Registry	Live server card
Title	n/a	n/a
Version	n/a	n/a
Homepage	n/a	n/a

Active alerts

Validation evidence is stale (medium)
Latest validation is 602.2 hours old.

Aliases & registry graph

Identifier	Source	Canonical	Score
`com.po6/mailbox`	official_registry	yes	77.14

Alias consolidation

Canonical identifier

com.po6/mailbox

Duplicate aliases

Registry sources

official_registry

Remote URLs

https://mcp.po6.com

Homepages

https://po6.com

Source disagreements

Field	What differs	Observed values
No source disagreements detected.

Install snippets

Openai Connectors

Connector URL: https://mcp.po6.com
# Complete OAuth in the client when prompted.
# Server: com.po6/mailbox

Claude Desktop

{
  "mcpServers": {
    "mailbox": {
      "command": "npx",
      "args": ["mcp-remote", "https://mcp.po6.com"]
    }
  }
}

Smithery

smithery mcp add "https://mcp.po6.com"

Generic Http

curl -sS https://mcp.po6.com -H 'content-type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-03-26","capabilities":{},"clientInfo":{"name":"mcp-verify","version":"0.1.0"}}}'

Agent access & tool surface

Live server tools

list_mailboxes get_mailbox_stats list_emails get_email search_emails mark_email move_email delete_email

Observed from the latest live validation against https://mcp.po6.com. This is the target server surface, not Verify's own inspection tools.

Live capability counts

39 tools • 0 prompts • 0 resources

Counts come from the latest tools/list, prompts/list, and resources/list checks.

Inspect with Verify

search_servers recommend_servers get_server_report compare_servers

Use Verify itself to search, recommend, compare, and fetch the full report for com.po6/mailbox.

Direct machine links

JSON report • Compare this server • Verify MCP API

Claims & monitoring

Server ownership

No verified maintainer claim recorded.

Watch subscriptions

Teams: none

Alert routing

Active watches

Generic webhooks

Slack routes

Teams routes

Email routes

Watch	Team	Channels	Minimum severity
No active watch destinations.

Maintainer analytics

Validation Run Count

Average Latency Ms

1388.61

Healthy Run Ratio Recent

1.0

Registry Presence Count

Active Alert Count

Watcher Count

Verified Claim

False

Taxonomy Tags

development, search, communication, web

Score Trend

77.14, 77.14, 77.14, 77.14, 77.14, 77.14, 77.14, 77.14, 77.14, 77.14

Remediation Count

High Risk Tool Count

Destructive Tool Count

Exec Tool Count

Maintainer response quality

Score

16.67

Verified claim

Support contact

Changelog present

Incident notes present

Tool changes documented

✓

Annotation history

Annotation count

Maintainer annotations

No maintainer annotations have been recorded yet.

Maintainer rebuttals & expected behavior

No maintainer rebuttals or expected-behavior overrides are recorded yet.

Latest validation evidence

Latest summary

Healthy

Validation profile

remote_mcp

Started

Apr 09, 2026 12:56:36 AM UTC

Latency

1514.9 ms

Failures

openid_configuration Client error '401 Unauthorized' for url 'https://mcp.po6.com/.well-known/openid-configuration' For more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/401
server_card Client error '401 Unauthorized' for url 'https://mcp.po6.com/.well-known/mcp/server-card.json' For more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/401
transport_compliance_probe Issues: missing protocol header, bad protocol not rejected, delete session unexpected, expired session not 404 (bad protocol=200, DELETE=405, expired session=200).

Checks

Check	Status	Latency	Evidence
`action_safety_probe`	Warning	n/a	7 high-risk, 5 destructive, 1 exec-capable tool(s); auth present; safeguards=10; confirmation=delete email, create draft, list drafts, list landing page templates, +4 more.
`advanced_capabilities_probe`	Warning	n/a	Only 2 capability signal(s): prompts, resources.
`connector_publishability_probe`	Warning	n/a	Publishability blockers: transport compliance, server card.
`connector_replay_probe`	OK	n/a	Backward compatible with no breaking tool-surface changes.
`determinism_probe`	OK	11.0 ms	Check completed
`initialize`	OK	509.9 ms	Protocol 2025-03-26
`interactive_flow_probe`	OK	n/a	Check completed
`oauth_authorization_server`	OK	10.1 ms	authorization_endpoint, code_challenge_methods_supported, grant_types_supported, issuer
`oauth_protected_resource`	OK	238.1 ms	1 authorization server(s)
`official_registry_probe`	OK	n/a	Check completed
`openid_configuration`	Error	10.7 ms	Client error '401 Unauthorized' for url 'https://mcp.po6.com/.well-known/openid-configuration' For more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/401
`probe_noise_resilience`	OK	25.3 ms	Fetched https://mcp.po6.com/robots.txt
`prompt_get`	Missing	n/a	not advertised
`prompts_list`	Auth Required	53.5 ms	Client error '401 Unauthorized' for url 'https://mcp.po6.com' For more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/401
`protocol_version_probe`	Warning	n/a	Claims 2025-03-26; 2 release(s) behind 2025-11-25.
`provenance_divergence_probe`	OK	n/a	Check completed
`request_association_probe`	Missing	n/a	No request-association capabilities were advertised.
`resource_read`	Missing	n/a	not advertised
`resources_list`	Auth Required	59.9 ms	Client error '401 Unauthorized' for url 'https://mcp.po6.com' For more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/401
`server_card`	Error	369.5 ms	Client error '401 Unauthorized' for url 'https://mcp.po6.com/.well-known/mcp/server-card.json' For more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/401
`session_resume_probe`	OK	13.3 ms	39 tool(s) exposed
`step_up_auth_probe`	OK	n/a	Scopes=email:read, email:write, landing page:domain, landing page:leads, +12 more; broad scopes=email:write, landing page:write, mailbox:write, support:write; step-up challenge hints present.
`tool_snapshot_probe`	OK	n/a	Check completed
`tools_list`	OK	19.5 ms	39 tool(s) exposed
`transport_compliance_probe`	Error	19.8 ms	Issues: missing protocol header, bad protocol not rejected, delete session unexpected, expired session not 404 (bad protocol=200, DELETE=405, expired session=200).
`utility_coverage_probe`	OK	45.2 ms	No completions evidence; no pagination evidence; tasks auth required.

Raw evidence view

Show raw JSON evidence

{
  "checks": {
    "action_safety_probe": {
      "details": {
        "auth_present": true,
        "confirmation_signals": [
          "delete_email",
          "create_draft",
          "list_drafts",
          "list_landing_page_templates",
          "publish_landing_page",
          "unpublish_landing_page",
          "assign_landing_page_domain",
          "archive_landing_page"
        ],
        "safeguard_count": 10,
        "summary": {
          "bulk_access_tools": 16,
          "capability_distribution": {
            "admin": 7,
            "delete": 5,
            "exec": 1,
            "export": 16,
            "filesystem": 5,
            "network": 9,
            "read": 28,
            "secrets": 5,
            "write": 21
          },
          "destructive_tools": 5,
          "egress_tools": 6,
          "exec_tools": 1,
          "high_risk_tools": 7,
          "risk_distribution": {
            "critical": 0,
            "high": 7,
            "low": 9,
            "medium": 23
          },
          "secret_tools": 5,
          "tool_count": 39
        }
      },
      "latency_ms": null,
      "status": "warning"
    },
    "advanced_capabilities_probe": {
      "details": {
        "capabilities": {
          "completions": false,
          "elicitation": false,
          "prompts": true,
          "resource_links": false,
          "resources": true,
          "roots": false,
          "sampling": false,
          "structured_outputs": false
        },
        "enabled": [
          "prompts",
          "resources"
        ],
        "enabled_count": 2,
        "initialize_capability_keys": [
          "prompts",
          "resources",
          "tools"
        ]
      },
      "latency_ms": null,
      "status": "warning"
    },
    "connector_publishability_probe": {
      "details": {
        "blockers": [
          "transport_compliance",
          "server_card"
        ],
        "criteria": {
          "action_safety": true,
          "auth_flow": true,
          "connector_replay": true,
          "initialize": true,
          "protocol_version": true,
          "remote_transport": true,
          "request_association": true,
          "server_card": false,
          "session_resume": true,
          "step_up_auth": true,
          "tool_surface": true,
          "tools_list": true,
          "transport_compliance": false
        },
        "high_risk_tools": 7,
        "tool_count": 39,
        "transport": "streamable-http"
      },
      "latency_ms": null,
      "status": "warning"
    },
    "connector_replay_probe": {
      "details": {
        "added_tools": [],
        "additive_output_changes": [],
        "backward_compatible": true,
        "output_breaks": [],
        "removed_tools": [],
        "required_arg_breaks": [],
        "would_break_after_refresh": false
      },
      "latency_ms": null,
      "status": "ok"
    },
    "determinism_probe": {
      "details": {
        "attempts": 2,
        "baseline_signature": "17013fcaba45d0a317f13708be9642d6dfc18c86895fe51ebd5c1df5928f20b0",
        "errors": [],
        "matches": 2,
        "stable_ratio": 1.0,
        "successful": 2
      },
      "latency_ms": 11.02,
      "status": "ok"
    },
    "initialize": {
      "details": {
        "headers": {
          "content-type": "application/json",
          "mcp-session-id": "78c3278c-934d-4a39-b5b7-889b17875ef8",
          "www-authenticate": "Bearer resource_metadata=\"https://mcp.po6.com/.well-known/oauth-protected-resource\""
        },
        "http_status": 200,
        "payload": {
          "id": 1,
          "jsonrpc": "2.0",
          "result": {
            "capabilities": {
              "prompts": {},
              "resources": {},
              "tools": {}
            },
            "protocolVersion": "2025-03-26",
            "serverInfo": {
              "name": "po6-mailbox",
              "version": "1.0.0"
            }
          }
        },
        "url": "https://mcp.po6.com"
      },
      "latency_ms": 509.92,
      "status": "ok"
    },
    "interactive_flow_probe": {
      "details": {
        "oauth_supported": true,
        "prompt_available": false,
        "risk_hits": [],
        "safe_hits": []
      },
      "latency_ms": null,
      "status": "ok"
    },
    "oauth_authorization_server": {
      "details": {
        "headers": {
          "content-type": "application/json"
        },
        "http_status": 200,
        "payload": {
          "authorization_endpoint": "https://mcp.po6.com/authorize",
          "code_challenge_methods_supported": [
            "S256"
          ],
          "grant_types_supported": [
            "authorization_code",
            "refresh_token"
          ],
          "issuer": "https://mcp.po6.com",
          "registration_endpoint": "https://mcp.po6.com/register",
          "response_types_supported": [
            "code"
          ],
          "scopes_supported": [
            "email:read",
            "email:write",
            "mailbox:read",
            "mailbox:write",
            "mailbox:list",
            "mailbox:search",
            "mailbox:delete",
            "mailbox:send",
            "landing_page:list",
            "landing_page:read",
            "landing_page:write",
            "landing_page:publish",
            "landing_page:leads",
            "landing_page:domain",
            "support:read",
            "support:write"
          ],
          "service_documentation": "https://po6.com/docs/mcp",
          "token_endpoint": "https://mcp.po6.com/token",
          "token_endpoint_auth_methods_supported": [
            "none",
            "client_secret_post",
            "client_secret_basic"
          ]
        },
        "url": "https://mcp.po6.com/.well-known/oauth-authorization-server"
      },
      "latency_ms": 10.07,
      "status": "ok"
    },
    "oauth_protected_resource": {
      "details": {
        "headers": {
          "content-type": "application/json"
        },
        "http_status": 200,
        "payload": {
          "authorization_servers": [
            "https://mcp.po6.com"
          ],
          "bearer_methods_supported": [
            "header"
          ],
          "resource": "https://mcp.po6.com",
          "resource_documentation": "https://po6.com/docs/mcp",
          "scopes_supported": [
            "email:read",
            "email:write",
            "mailbox:read",
            "mailbox:write",
            "mailbox:list",
            "mailbox:search",
            "mailbox:delete",
            "mailbox:send",
            "landing_page:list",
            "landing_page:read",
            "landing_page:write",
            "landing_page:publish",
            "landing_page:leads",
            "landing_page:domain",
            "support:read",
            "support:write"
          ]
        },
        "url": "https://mcp.po6.com/.well-known/oauth-protected-resource"
      },
      "latency_ms": 238.07,
      "status": "ok"
    },
    "official_registry_probe": {
      "details": {
        "direct_match": true,
        "official_peer_count": 1,
        "registry_identifier": "com.po6/mailbox",
        "registry_source": "official_registry"
      },
      "latency_ms": null,
      "status": "ok"
    },
    "openid_configuration": {
      "details": {
        "error": "Client error '401 Unauthorized' for url 'https://mcp.po6.com/.well-known/openid-configuration'\nFor more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/401",
        "url": "https://mcp.po6.com/.well-known/openid-configuration"
      },
      "latency_ms": 10.73,
      "status": "error"
    },
    "probe_noise_resilience": {
      "details": {
        "headers": {
          "content-type": "text/plain; charset=utf-8"
        },
        "http_status": 200,
        "url": "https://mcp.po6.com/robots.txt"
      },
      "latency_ms": 25.3,
      "status": "ok"
    },
    "prompt_get": {
      "details": {
        "reason": "not_advertised"
      },
      "latency_ms": null,
      "status": "missing"
    },
    "prompts_list": {
      "details": {
        "error": "Client error '401 Unauthorized' for url 'https://mcp.po6.com'\nFor more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/401",
        "headers": {
          "content-type": "application/json",
          "www-authenticate": "Bearer resource_metadata=\"https://mcp.po6.com/.well-known/oauth-protected-resource\""
        },
        "http_status": 401,
        "payload": {},
        "reason": "auth_required",
        "url": "https://mcp.po6.com"
      },
      "latency_ms": 53.49,
      "status": "auth_required"
    },
    "protocol_version_probe": {
      "details": {
        "claimed_version": "2025-03-26",
        "lag_days": 244,
        "latest_known_version": "2025-11-25",
        "releases_behind": 2,
        "validator_protocol_version": "2025-03-26"
      },
      "latency_ms": null,
      "status": "warning"
    },
    "provenance_divergence_probe": {
      "details": {
        "direct_official_match": true,
        "drift_fields": [],
        "metadata_document_count": 2,
        "registry_homepage": null,
        "registry_repository": null,
        "registry_title": null,
        "registry_version": null,
        "server_card_homepage": null,
        "server_card_repository": null,
        "server_card_title": null,
        "server_card_version": null
      },
      "latency_ms": null,
      "status": "ok"
    },
    "request_association_probe": {
      "details": {
        "reason": "no_request_association_capabilities_advertised"
      },
      "latency_ms": null,
      "status": "missing"
    },
    "resource_read": {
      "details": {
        "reason": "not_advertised"
      },
      "latency_ms": null,
      "status": "missing"
    },
    "resources_list": {
      "details": {
        "error": "Client error '401 Unauthorized' for url 'https://mcp.po6.com'\nFor more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/401",
        "headers": {
          "content-type": "application/json",
          "www-authenticate": "Bearer resource_metadata=\"https://mcp.po6.com/.well-known/oauth-protected-resource\""
        },
        "http_status": 401,
        "payload": {},
        "reason": "auth_required",
        "url": "https://mcp.po6.com"
      },
      "latency_ms": 59.92,
      "status": "auth_required"
    },
    "server_card": {
      "details": {
        "error": "Client error '401 Unauthorized' for url 'https://mcp.po6.com/.well-known/mcp/server-card.json'\nFor more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/401",
        "url": "https://mcp.po6.com/.well-known/mcp/server-card.json"
      },
      "latency_ms": 369.47,
      "status": "error"
    },
    "session_resume_probe": {
      "details": {
        "headers": {
          "content-type": "application/json",
          "www-authenticate": "Bearer resource_metadata=\"https://mcp.po6.com/.well-known/oauth-protected-resource\""
        },
        "http_status": 200,
        "payload": {
          "id": 301,
          "jsonrpc": "2.0",
          "result": {
            "tools": [
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Mailboxes"
                },
                "description": "List all mailboxes the API key has access to, with basic stats for each",
                "inputSchema": {
                  "properties": {},
                  "type": "object"
                },
                "name": "list_mailboxes"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Mailbox Stats"
                },
                "description": "Get detailed statistics for a specific mailbox including email counts, storage usage, and folder breakdown",
                "inputSchema": {
                  "properties": {
                    "mailbox_id": {
                      "description": "The mailbox ID to get stats for",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id"
                  ],
                  "type": "object"
                },
                "name": "get_mailbox_stats"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Emails"
                },
                "description": "List emails in a mailbox with optional filtering. Returns email metadata without full content.",
                "inputSchema": {
                  "properties": {
                    "folder": {
                      "default": "inbox",
                      "description": "Filter by folder (inbox, spam, archive, trash, or custom folder name)",
                      "type": "string"
                    },
                    "from_filter": {
                      "description": "Filter by sender email address (partial match)",
                      "type": "string"
                    },
                    "has_attachments": {
                      "description": "Only return emails with attachments",
                      "type": "boolean"
                    },
                    "limit": {
                      "default": 20,
                      "description": "Maximum number of emails to return (1-100)",
                      "type": "number"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID to list emails from",
                      "type": "string"
                    },
                    "offset": {
                      "default": 0,
                      "description": "Number of emails to skip for pagination",
                      "type": "number"
                    },
                    "since": {
                      "description": "Only return emails received after this ISO 8601 date",
                      "type": "string"
                    },
                    "starred_only": {
                      "default": false,
                      "description": "Only return starred emails",
                      "type": "boolean"
                    },
                    "subject_contains": {
                      "description": "Filter by subject containing this text",
                      "type": "string"
                    },
                    "unread_only": {
                      "default": false,
                      "description": "Only return unread emails",
                      "type": "boolean"
                    },
                    "until": {
                      "description": "Only return emails received before this ISO 8601 date",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id"
                  ],
                  "type": "object"
                },
                "name": "list_emails"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": true,
                  "readOnlyHint": true,
                  "title": "Read Email"
                },
                "description": "Get the full content of a specific email including body text, HTML, headers, and attachment metadata. To mark the email as read, use mark_email separately.",
                "inputSchema": {
                  "properties": {
                    "email_id": {
                      "description": "The email ID to retrieve",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID containing the email",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "email_id"
                  ],
                  "type": "object"
                },
                "name": "get_email"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Search Emails"
                },
                "description": "Search emails across one or all accessible mailboxes using text search",
                "inputSchema": {
                  "properties": {
                    "limit": {
                      "default": 20,
                      "description": "Maximum number of results (1-50)",
                      "type": "number"
                    },
                    "mailbox_id": {
                      "description": "Optional: limit search to a specific mailbox",
                      "type": "string"
                    },
                    "query": {
                      "description": "Search query to match against sender, subject, and snippet",
                      "type": "string"
                    }
                  },
                  "required": [
                    "query"
                  ],
                  "type": "object"
                },
                "name": "search_emails"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": true,
                  "readOnlyHint": false,
                  "title": "Mark Email"
                },
                "description": "Mark an email as read/unread or starred/unstarred",
                "inputSchema": {
                  "properties": {
                    "email_id": {
                      "description": "The email ID to mark",
                      "type": "string"
                    },
                    "is_read": {
                      "description": "Set read status (true = read, false = unread)",
                      "type": "boolean"
                    },
                    "is_starred": {
                      "description": "Set starred status (true = starred, false = unstarred)",
                      "type": "boolean"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID containing the email",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "email_id"
                  ],
                  "type": "object"
                },
                "name": "mark_email"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": true,
                  "readOnlyHint": false,
                  "title": "Move Email"
                },
                "description": "Move an email to a different folder",
                "inputSchema": {
                  "properties": {
                    "email_id": {
                      "description": "The email ID to move",
                      "type": "string"
                    },
                    "folder": {
                      "description": "Target folder (inbox, spam, archive, trash, or custom folder name)",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID containing the email",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "email_id",
                    "folder"
                  ],
                  "type": "object"
                },
                "name": "move_email"
              },
              {
                "annotations": {
                  "destructiveHint": true,
                  "idempotentHint": false,
                  "readOnlyHint": false,
                  "title": "Delete Email"
                },
                "description": "Permanently delete an email. This action cannot be undone. Consider moving to trash first. Requires a two-step confirmation: first call returns a confirmation_token, second call with the token performs the deletion.",
                "inputSchema": {
                  "properties": {
                    "confirmation_token": {
                      "description": "Confirmation token from the first call. Required to actually perform the deletion.",
                      "type": "string"
                    },
                    "email_id": {
                      "description": "The email ID to delete",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID containing the email",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "email_id"
                  ],
                  "type": "object"
                },
                "name": "delete_email"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Folders"
                },
                "description": "List all folders in a mailbox including system folders and custom folders",
                "inputSchema": {
                  "properties": {
                    "mailbox_id": {
                      "description": "The mailbox ID to list folders for",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id"
                  ],
                  "type": "object"
                },
                "name": "list_folders"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Email Lists"
                },
                "description": "List all email contact lists for the user. Email lists help organize contacts for outreach campaigns and bulk operations. Requires a paid plan (Standard or Plus).",
                "inputSchema": {
                  "properties": {},
                  "type": "object"
                },
                "name": "list_email_lists"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Email List Contacts"
                },
                "description": "Get contacts from a specific email list. Returns contact details including email, name, company, and status. Only active contacts can receive emails.",
                "inputSchema": {
                  "properties": {
                    "limit": {
                      "default": 50,
                      "description": "Maximum number of contacts to return (1-200)",
                      "type": "number"
                    },
                    "list_id": {
                      "description": "The email list ID to get contacts from",
                      "type": "string"
                    },
                    "offset": {
                      "default": 0,
                      "description": "Number of contacts to skip for pagination",
                      "type": "number"
                    },
                    "status": {
                      "description": "Filter by contact status (active, unsubscribed, bounced). Default: all statuses.",
                      "enum": [
                        "active",
                        "unsubscribed",
                        "bounced"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "list_id"
                  ],
                  "type": "object"
                },
                "name": "get_email_list_contacts"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": false,
                  "openWorldHint": true,
                  "readOnlyHint": false,
                  "title": "Compose New Email"
                },
                "description": "Compose and send a new email to one or more recipients. Requires a paid plan (Standard or Plus). Rate limits vary by plan (Standard: 30/hr, 200/day; Plus: 60/hr, 500/day).",
                "inputSchema": {
                  "properties": {
                    "body_html": {
                      "description": "Optional HTML body. If not provided, body_text will be converted to HTML.",
                      "type": "string"
                    },
                    "body_text": {
                      "description": "Plain text body of the email",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID to send from",
                      "type": "string"
                    },
                    "subject": {
                      "description": "Email subject line",
                      "type": "string"
                    },
                    "to_addresses": {
                      "description": "List of recipient email addresses",
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "to_addresses",
                    "subject",
                    "body_text"
                  ],
                  "type": "object"
                },
                "name": "compose_email"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": false,
                  "openWorldHint": true,
                  "readOnlyHint": false,
                  "title": "Reply to Email"
                },
                "description": "Reply to an email. The reply will be sent from the mailbox's email address to the original sender. Rate limited per plan (Standard: 30/hr, Plus: 60/hr).",
                "inputSchema": {
                  "properties": {
                    "body_html": {
                      "description": "Optional HTML body of the reply. If not provided, body_text will be used.",
                      "type": "string"
                    },
                    "body_text": {
                      "description": "Plain text body of the reply",
                      "type": "string"
                    },
                    "email_id": {
                      "description": "The email ID to reply to",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID containing the email to reply to",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "email_id",
                    "body_text"
                  ],
                  "type": "object"
                },
                "name": "reply_email"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": false,
                  "openWorldHint": true,
                  "readOnlyHint": false,
                  "title": "Forward Email"
                },
                "description": "Forward an email to one or more recipients. The forward will be sent from the mailbox's email address. Rate limited per plan (Standard: 30/hr, Plus: 60/hr). Max recipients per plan (Standard: 5, Plus: 10).",
                "inputSchema": {
                  "properties": {
                    "email_id": {
                      "description": "The email ID to forward",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID containing the email to forward",
                      "type": "string"
                    },
                    "message": {
                      "description": "Optional message to include above the forwarded email",
                      "type": "string"
                    },
                    "to_addresses": {
                      "description": "List of email addresses to forward to (max 5)",
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "email_id",
                    "to_addresses"
                  ],
                  "type": "object"
                },
                "name": "forward_email"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Email Templates"
                },
                "description": "List email templates available for composing emails. Templates contain pre-written subject and body content with optional variables like {{first_name}} that can be filled in.",
                "inputSchema": {
                  "properties": {
                    "category": {
                      "description": "Optional: filter by category (general, outreach, followup, newsletter)",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "Optional: filter templates for a specific mailbox. If omitted, returns all templates.",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "name": "list_templates"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Email Template"
                },
                "description": "Get the full content of an email template including subject, body, and variables.",
                "inputSchema": {
                  "properties": {
                    "template_id": {
                      "description": "The template ID to retrieve",
                      "type": "string"
                    }
                  },
                  "required": [
                    "template_id"
                  ],
                  "type": "object"
                },
                "name": "get_template"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": false,
                  "readOnlyHint": false,
                  "title": "Create Draft Email"
                },
                "description": "Create a draft email for the user to review and approve before sending. This is the preferred way for AI agents to compose emails - the user can review, edit, and approve drafts from the web dashboard. Drafts expire after 72 hours if not acted on. Rate limited per plan.",
                "inputSchema": {
                  "properties": {
                    "body_html": {
                      "description": "Optional HTML body. If not provided, body_text will be converted to HTML.",
                      "type": "string"
                    },
                    "body_text": {
                      "description": "Plain text body of the email",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID to create the draft for",
                      "type": "string"
                    },
                    "scheduled_at": {
                      "description": "Optional: ISO 8601 date to schedule the send for (e.g., \"2025-01-15T09:00:00Z\"). If set, the email will be sent at this time after approval.",
                      "type": "string"
                    },
                    "subject": {
                      "description": "Email subject line",
                      "type": "string"
                    },
                    "template_id": {
                      "description": "Optional: template ID to base the draft on",
                      "type": "string"
                    },
                    "to_addresses": {
                      "description": "List of recipient email addresses",
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "to_addresses",
                    "subject",
                    "body_text"
                  ],
                  "type": "object"
                },
                "name": "create_draft"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Draft Emails"
                },
                "description": "List draft emails pending review. Shows drafts created by AI agents that the user can approve or reject.",
                "inputSchema": {
                  "properties": {
                    "limit": {
                      "default": 20,
                      "description": "Maximum number of drafts to return (1-50)",
                      "type": "number"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID to list drafts for",
                      "type": "string"
                    },
                    "status": {
                      "description": "Filter by status: pending_review, approved, rejected, sent, expired",
                      "enum": [
                        "pending_review",
                        "approved",
                        "rejected",
                        "sent",
                        "expired"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id"
                  ],
                  "type": "object"
                },
                "name": "list_drafts"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Sent Emails"
                },
                "description": "List emails sent from a mailbox. Shows all sent emails whether sent by the user (web), AI agent (MCP), or API. Includes delivery status and sent_via source.",
                "inputSchema": {
                  "properties": {
                    "limit": {
                      "default": 20,
                      "description": "Maximum number of emails to return (1-100)",
                      "type": "number"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID to list sent emails for",
                      "type": "string"
                    },
                    "offset": {
                      "default": 0,
                      "description": "Number of emails to skip for pagination",
                      "type": "number"
                    },
                    "sent_via": {
                      "description": "Optional: filter by how the email was sent",
                      "enum": [
                        "web",
                        "mcp",
                        "api"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id"
                  ],
                  "type": "object"
                },
                "name": "list_sent_emails"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Aliases"
                },
                "description": "List all @po6.com forwarding aliases owned by the user. Returns alias address, forwarding destination, subscription plan, active status, and plus addressing settings.",
                "inputSchema": {
                  "properties": {
                    "active_only": {
                      "default": false,
                      "description": "Only return active aliases",
                      "type": "boolean"
                    }
                  },
                  "type": "object"
                },
                "name": "list_aliases"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Alias Details"
                },
                "description": "Get detailed information about a specific @po6.com alias including forwarding destination, verification status, subscription plan, plus addressing, and URL redirect settings.",
                "inputSchema": {
                  "properties": {
                    "alias_id": {
                      "description": "The alias ID to retrieve",
                      "type": "string"
                    }
                  },
                  "required": [
                    "alias_id"
                  ],
                  "type": "object"
                },
                "name": "get_alias"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": true,
                  "title": "Update Alias"
                },
                "description": "Update a @po6.com alias settings. Can change forwarding address (triggers re-verification), toggle active status, or configure plus addressing. Cannot create or delete aliases.",
                "inputSchema": {
                  "properties": {
                    "alias_id": {
                      "description": "The alias ID to update",
                      "type": "string"
                    },
                    "forward_to": {
                      "description": "New forwarding email address (will require re-verification)",
                      "type": "string"
                    },
                    "is_active": {
                      "description": "Enable or disable the alias (requires active subscription)",
                      "type": "boolean"
                    },
                    "plus_addressing_enabled": {
                      "description": "Enable or disable plus addressing (e.g. alias+tag@po6.com)",
                      "type": "boolean"
                    },
                    "plus_tag_auto_label": {
                      "description": "Automatically label forwarded emails with the plus tag",
                      "type": "boolean"
                    }
                  },
                  "required": [
                    "alias_id"
                  ],
                  "type": "object"
                },
                "name": "update_alias"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Domains"
                },
                "description": "List all custom (BYOD) domains owned by the user. Returns domain name, verification status, catchall config, alias count, and BYOD subscription plan with limits.",
                "inputSchema": {
                  "properties": {},
                  "type": "object"
                },
                "name": "list_domains"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Domain Details"
                },
                "description": "Get detailed information about a custom domain including verification status, MX records, catchall configuration, aliases, and BYOD plan limits.",
                "inputSchema": {
                  "properties": {
                    "domain_id": {
                      "description": "The domain ID to retrieve",
                      "type": "string"
                    }
                  },
                  "required": [
                    "domain_id"
                  ],
                  "type": "object"
                },
                "name": "get_domain"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": true,
                  "title": "Update Domain Alias"
                },
                "description": "Update a domain alias settings. Can change forwarding address (triggers re-verification), toggle active status (subject to plan limits), or configure plus addressing.",
                "inputSchema": {
                  "properties": {
                    "alias_id": {
                      "description": "The domain alias ID to update",
                      "type": "string"
                    },
                    "domain_id": {
                      "description": "The domain ID containing the alias",
                      "type": "string"
                    },
                    "forward_to": {
                      "description": "New forwarding email address (will require re-verification)",
                      "type": "string"
                    },
                    "is_active": {
                      "description": "Enable or disable the alias (subject to plan active alias limit)",
                      "type": "boolean"
                    },
                    "plus_addressing_enabled": {
                      "description": "Enable or disable plus addressing",
                      "type": "boolean"
                    },
                    "plus_tag_auto_label": {
                      "description": "Automatically label forwarded emails with the plus tag",
                      "type": "boolean"
                    }
                  },
                  "required": [
                    "domain_id",
                    "alias_id"
                  ],
                  "type": "object"
                },
                "name": "update_domain_alias"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": true,
                  "title": "Update Catchall"
                },
                "description": "Enable, disable, or update the catchall configuration for a custom domain. Catchall forwards all unmatched emails to a specified address. Changing the forward address requires re-verification.",
                "inputSchema": {
                  "properties": {
                    "domain_id": {
                      "description": "The domain ID to configure catchall for",
                      "type": "string"
                    },
                    "enabled": {
                      "description": "Enable or disable catchall",
                      "type": "boolean"
                    },
                    "forward_to": {
                      "description": "Email address to forward catchall emails to (required when enabling)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "domain_id"
                  ],
                  "type": "object"
                },
                "name": "update_catchall"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Landing Page Templates"
                },
                "description": "List available landing page templates. Returns template summaries including name, category, and preview information.",
                "inputSchema": {
                  "properties": {
                    "category": {
                      "description": "Optional: filter templates by category",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "name": "list_landing_page_templates"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Landing Page Template"
                },
                "description": "Get full details of a landing page template by ID, including widget configuration and default content.",
                "inputSchema": {
                  "properties": {
                    "template_id": {
                      "description": "The template ID to retrieve",
                      "type": "string"
                    }
                  },
                  "required": [
                    "template_id"
                  ],
                  "type": "object"
                },
                "name": "get_landing_page_template"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Landing Pages"
                },
                "description": "List the user's landing pages with optional filtering by status. Returns page summaries including title, status, URL, and last modified date.",
                "inputSchema": {
                  "properties": {
                    "limit": {
                      "default": 20,
                      "description": "Maximum number of landing pages to return (1-100)",
                      "type": "number"
                    },
                    "offset": {
                      "default": 0,
                      "description": "Number of landing pages to skip for pagination",
                      "type": "number"
                    },
                    "status": {
                      "description": "Filter by landing page status",
                      "enum": [
                        "draft",
                        "published",
                        "archived"
                      ],
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "name": "list_landing_pages"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Landing Page"
                },
                "description": "Get a landing page's full details including widget configuration, SEO settings, linked alias/domain, and publication status.",
                "inputSchema": {
                  "properties": {
                    "page_id": {
                      "description": "The landing page ID to retrieve",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id"
                  ],
                  "type": "object"
                },
                "name": "get_landing_page"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Landing Page Stats"
                },
                "description": "Get analytics and statistics for a landing page including page views, unique visitors, and lead conversion metrics.",
                "inputSchema": {
                  "properties": {
                    "days": {
                      "default": 30,
                      "description": "Number of days of stats to retrieve",
                      "type": "number"
                    },
                    "page_id": {
                      "description": "The landing page ID to get stats for",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id"
                  ],
                  "type": "object"
                },
                "name": "get_landing_page_stats"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Landing Page Leads"
                },
                "description": "List leads/form submissions captured by landing pages. Returns lead details including email, name, submission date, and source page.",
                "inputSchema": {
                  "properties": {
                    "limit": {
                      "default": 20,
                      "description": "Maximum number of leads to return (1-100)",
                      "type": "number"
                    },
                    "offset": {
                      "default": 0,
                      "description": "Number of leads to skip for pagination",
                      "type": "number"
                    },
                    "page_id": {
                      "description": "Optional: filter leads to a specific landing page",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "name": "list_landing_page_leads"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": false,
                  "readOnlyHint": false,
                  "title": "Create Landing Page"
                },
                "description": "Create a new landing page from a template. The page is created in draft status. Optionally link it to a po6 alias or BYOD domain alias for URL routing.",
                "inputSchema": {
                  "properties": {
                    "alias_id": {
                      "description": "Optional: po6 alias ID to link this landing page to",
                      "type": "string"
                    },
                    "domain_alias_id": {
                      "description": "Optional: BYOD domain alias ID to link this landing page to",
                      "type": "string"
                    },
                    "domain_id": {
                      "description": "Optional: BYOD domain ID (required when using domain_alias_id)",
                      "type": "string"
                    },
                    "template_id": {
                      "description": "The template ID to create the landing page from",
                      "type": "string"
                    },
                    "title": {
                      "description": "Optional title for the landing page",
                      "type": "string"
                    }
                  },
                  "required": [
                    "template_id"
                  ],
                  "type": "object"
                },
                "name": "create_landing_page"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": true,
                  "readOnlyHint": false,
                  "title": "Update Landing Page"
                },
                "description": "Update a landing page's configuration, title, or SEO settings. Pass the full widget config JSON to update the page layout and content.",
                "inputSchema": {
                  "properties": {
                    "config": {
                      "description": "JSON string of the widget configuration for the page layout and content",
                      "type": "string"
                    },
                    "favicon_url": {
                      "description": "Custom favicon URL for the page",
                      "type": "string"
                    },
                    "lead_notify_email": {
                      "description": "Email address to send lead notifications to",
                      "type": "string"
                    },
                    "meta_description": {
                      "description": "SEO meta description for the page",
                      "type": "string"
                    },
                    "meta_title": {
                      "description": "SEO meta title for the page",
                      "type": "string"
                    },
                    "notify_on_lead": {
                      "description": "Whether to send email notifications when a new lead is captured",
                      "type": "boolean"
                    },
                    "og_image_url": {
                      "description": "Open Graph image URL for social media sharing",
                      "type": "string"
                    },
                    "page_id": {
                      "description": "The landing page ID to update",
                      "type": "string"
                    },
                    "title": {
                      "description": "New title for the landing page",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id"
                  ],
                  "type": "object"
                },
                "name": "update_landing_page"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": false,
                  "openWorldHint": true,
                  "readOnlyHint": false,
                  "title": "Publish Landing Page"
                },
                "description": "Publish a landing page, making it publicly accessible at its URL. Requires a two-step confirmation: first call returns a confirmation_token, second call with the token performs the publish.",
                "inputSchema": {
                  "properties": {
                    "confirmation_token": {
                      "description": "Confirmation token from the first call. Required to actually perform the publish.",
                      "type": "string"
                    },
                    "page_id": {
                      "description": "The landing page ID to publish",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id"
                  ],
                  "type": "object"
                },
                "name": "publish_landing_page"
              },
              {
                "annotations": {
                  "destructiveHint": true,
                  "idempotentHint": false,
                  "readOnlyHint": false,
                  "title": "Unpublish Landing Page"
                },
                "description": "Unpublish a landing page, removing it from public access. The page returns to draft status. Requires a two-step confirmation: first call returns a confirmation_token, second call with the token performs the unpublish.",
                "inputSchema": {
                  "properties": {
                    "confirmation_token": {
                      "description": "Confirmation token from the first call. Required to actually perform the unpublish.",
                      "type": "string"
                    },
                    "page_id": {
                      "description": "The landing page ID to unpublish",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id"
                  ],
                  "type": "object"
                },
                "name": "unpublish_landing_page"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": false,
                  "openWorldHint": true,
                  "readOnlyHint": false,
                  "title": "Assign Landing Page Domain"
                },
                "description": "Assign a custom domain to a landing page so it can be accessed via that domain. Requires a two-step confirmation: first call returns a confirmation_token, second call with the token performs the assignment.",
                "inputSchema": {
                  "properties": {
                    "confirmation_token": {
                      "description": "Confirmation token from the first call. Required to actually perform the domain assignment.",
                      "type": "string"
                    },
                    "domain": {
                      "description": "The custom domain to assign (e.g., \"landing.example.com\")",
                      "type": "string"
                    },
                    "page_id": {
                      "description": "The landing page ID to assign the domain to",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id",
                    "domain"
                  ],
                  "type": "object"
                },
                "name": "assign_landing_page_domain"
              },
              {
                "annotations": {
                  "destructiveHint": true,
                  "idempotentHint": false,
                  "readOnlyHint": false,
                  "title": "Archive Landing Page"
                },
                "description": "Archive (soft-delete) a landing page. If the page is published, it will be unpublished first. Requires a two-step confirmation: first call returns a confirmation_token, second call with the token performs the archive.",
                "inputSchema": {
                  "properties": {
                    "confirmation_token": {
                      "description": "Confirmation token from the first call. Required to actually perform the archive.",
                      "type": "string"
                    },
                    "page_id": {
                      "description": "The landing page ID to archive",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id"
                  ],
                  "type": "object"
                },
                "name": "archive_landing_page"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Download Landing Page"
                },
                "description": "Download a published landing page as a standalone HTML file. Returns the full HTML content of the page. The page must be published.",
                "inputSchema": {
                  "properties": {
                    "page_id": {
                      "description": "The landing page ID to download",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id"
                  ],
                  "type": "object"
                },
                "name": "download_landing_page"
              }
            ]
          }
        },
        "requested_protocol_version": "2025-03-26",
        "resumed": true,
        "session_id_present": true,
        "transport": "streamable-http",
        "url": "https://mcp.po6.com"
      },
      "latency_ms": 13.33,
      "status": "ok"
    },
    "step_up_auth_probe": {
      "details": {
        "auth_required_checks": [
          "prompts_list",
          "resources_list"
        ],
        "broad_scopes": [
          "email:write",
          "landing_page:write",
          "mailbox:write",
          "support:write"
        ],
        "challenge_headers": [
          "Bearer resource_metadata=\"https://mcp.po6.com/.well-known/oauth-protected-resource\"",
          "Bearer resource_metadata=\"https://mcp.po6.com/.well-known/oauth-protected-resource\""
        ],
        "minimal_scope_documented": true,
        "oauth_present": true,
        "scope_specificity_ratio": 0.381,
        "step_up_signals": [
          "Bearer resource_metadata=\"https://mcp.po6.com/.well-known/oauth-protected-resource\"",
          "Bearer resource_metadata=\"https://mcp.po6.com/.well-known/oauth-protected-resource\""
        ],
        "supported_scopes": [
          "email:read",
          "email:write",
          "landing_page:domain",
          "landing_page:leads",
          "landing_page:list",
          "landing_page:publish",
          "landing_page:read",
          "landing_page:write",
          "mailbox:delete",
          "mailbox:list",
          "mailbox:read",
          "mailbox:search",
          "mailbox:send",
          "mailbox:write",
          "support:read",
          "support:write"
        ]
      },
      "latency_ms": null,
      "status": "ok"
    },
    "tool_snapshot_probe": {
      "details": {
        "added": [],
        "changed_outputs": [],
        "current_tool_count": 39,
        "previous_tool_count": 39,
        "removed": [],
        "similarity": 1.0
      },
      "latency_ms": null,
      "status": "ok"
    },
    "tools_list": {
      "details": {
        "headers": {
          "content-type": "application/json",
          "www-authenticate": "Bearer resource_metadata=\"https://mcp.po6.com/.well-known/oauth-protected-resource\""
        },
        "http_status": 200,
        "payload": {
          "id": 2,
          "jsonrpc": "2.0",
          "result": {
            "tools": [
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Mailboxes"
                },
                "description": "List all mailboxes the API key has access to, with basic stats for each",
                "inputSchema": {
                  "properties": {},
                  "type": "object"
                },
                "name": "list_mailboxes"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Mailbox Stats"
                },
                "description": "Get detailed statistics for a specific mailbox including email counts, storage usage, and folder breakdown",
                "inputSchema": {
                  "properties": {
                    "mailbox_id": {
                      "description": "The mailbox ID to get stats for",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id"
                  ],
                  "type": "object"
                },
                "name": "get_mailbox_stats"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Emails"
                },
                "description": "List emails in a mailbox with optional filtering. Returns email metadata without full content.",
                "inputSchema": {
                  "properties": {
                    "folder": {
                      "default": "inbox",
                      "description": "Filter by folder (inbox, spam, archive, trash, or custom folder name)",
                      "type": "string"
                    },
                    "from_filter": {
                      "description": "Filter by sender email address (partial match)",
                      "type": "string"
                    },
                    "has_attachments": {
                      "description": "Only return emails with attachments",
                      "type": "boolean"
                    },
                    "limit": {
                      "default": 20,
                      "description": "Maximum number of emails to return (1-100)",
                      "type": "number"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID to list emails from",
                      "type": "string"
                    },
                    "offset": {
                      "default": 0,
                      "description": "Number of emails to skip for pagination",
                      "type": "number"
                    },
                    "since": {
                      "description": "Only return emails received after this ISO 8601 date",
                      "type": "string"
                    },
                    "starred_only": {
                      "default": false,
                      "description": "Only return starred emails",
                      "type": "boolean"
                    },
                    "subject_contains": {
                      "description": "Filter by subject containing this text",
                      "type": "string"
                    },
                    "unread_only": {
                      "default": false,
                      "description": "Only return unread emails",
                      "type": "boolean"
                    },
                    "until": {
                      "description": "Only return emails received before this ISO 8601 date",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id"
                  ],
                  "type": "object"
                },
                "name": "list_emails"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": true,
                  "readOnlyHint": true,
                  "title": "Read Email"
                },
                "description": "Get the full content of a specific email including body text, HTML, headers, and attachment metadata. To mark the email as read, use mark_email separately.",
                "inputSchema": {
                  "properties": {
                    "email_id": {
                      "description": "The email ID to retrieve",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID containing the email",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "email_id"
                  ],
                  "type": "object"
                },
                "name": "get_email"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Search Emails"
                },
                "description": "Search emails across one or all accessible mailboxes using text search",
                "inputSchema": {
                  "properties": {
                    "limit": {
                      "default": 20,
                      "description": "Maximum number of results (1-50)",
                      "type": "number"
                    },
                    "mailbox_id": {
                      "description": "Optional: limit search to a specific mailbox",
                      "type": "string"
                    },
                    "query": {
                      "description": "Search query to match against sender, subject, and snippet",
                      "type": "string"
                    }
                  },
                  "required": [
                    "query"
                  ],
                  "type": "object"
                },
                "name": "search_emails"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": true,
                  "readOnlyHint": false,
                  "title": "Mark Email"
                },
                "description": "Mark an email as read/unread or starred/unstarred",
                "inputSchema": {
                  "properties": {
                    "email_id": {
                      "description": "The email ID to mark",
                      "type": "string"
                    },
                    "is_read": {
                      "description": "Set read status (true = read, false = unread)",
                      "type": "boolean"
                    },
                    "is_starred": {
                      "description": "Set starred status (true = starred, false = unstarred)",
                      "type": "boolean"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID containing the email",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "email_id"
                  ],
                  "type": "object"
                },
                "name": "mark_email"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": true,
                  "readOnlyHint": false,
                  "title": "Move Email"
                },
                "description": "Move an email to a different folder",
                "inputSchema": {
                  "properties": {
                    "email_id": {
                      "description": "The email ID to move",
                      "type": "string"
                    },
                    "folder": {
                      "description": "Target folder (inbox, spam, archive, trash, or custom folder name)",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID containing the email",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "email_id",
                    "folder"
                  ],
                  "type": "object"
                },
                "name": "move_email"
              },
              {
                "annotations": {
                  "destructiveHint": true,
                  "idempotentHint": false,
                  "readOnlyHint": false,
                  "title": "Delete Email"
                },
                "description": "Permanently delete an email. This action cannot be undone. Consider moving to trash first. Requires a two-step confirmation: first call returns a confirmation_token, second call with the token performs the deletion.",
                "inputSchema": {
                  "properties": {
                    "confirmation_token": {
                      "description": "Confirmation token from the first call. Required to actually perform the deletion.",
                      "type": "string"
                    },
                    "email_id": {
                      "description": "The email ID to delete",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID containing the email",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "email_id"
                  ],
                  "type": "object"
                },
                "name": "delete_email"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Folders"
                },
                "description": "List all folders in a mailbox including system folders and custom folders",
                "inputSchema": {
                  "properties": {
                    "mailbox_id": {
                      "description": "The mailbox ID to list folders for",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id"
                  ],
                  "type": "object"
                },
                "name": "list_folders"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Email Lists"
                },
                "description": "List all email contact lists for the user. Email lists help organize contacts for outreach campaigns and bulk operations. Requires a paid plan (Standard or Plus).",
                "inputSchema": {
                  "properties": {},
                  "type": "object"
                },
                "name": "list_email_lists"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Email List Contacts"
                },
                "description": "Get contacts from a specific email list. Returns contact details including email, name, company, and status. Only active contacts can receive emails.",
                "inputSchema": {
                  "properties": {
                    "limit": {
                      "default": 50,
                      "description": "Maximum number of contacts to return (1-200)",
                      "type": "number"
                    },
                    "list_id": {
                      "description": "The email list ID to get contacts from",
                      "type": "string"
                    },
                    "offset": {
                      "default": 0,
                      "description": "Number of contacts to skip for pagination",
                      "type": "number"
                    },
                    "status": {
                      "description": "Filter by contact status (active, unsubscribed, bounced). Default: all statuses.",
                      "enum": [
                        "active",
                        "unsubscribed",
                        "bounced"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "list_id"
                  ],
                  "type": "object"
                },
                "name": "get_email_list_contacts"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": false,
                  "openWorldHint": true,
                  "readOnlyHint": false,
                  "title": "Compose New Email"
                },
                "description": "Compose and send a new email to one or more recipients. Requires a paid plan (Standard or Plus). Rate limits vary by plan (Standard: 30/hr, 200/day; Plus: 60/hr, 500/day).",
                "inputSchema": {
                  "properties": {
                    "body_html": {
                      "description": "Optional HTML body. If not provided, body_text will be converted to HTML.",
                      "type": "string"
                    },
                    "body_text": {
                      "description": "Plain text body of the email",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID to send from",
                      "type": "string"
                    },
                    "subject": {
                      "description": "Email subject line",
                      "type": "string"
                    },
                    "to_addresses": {
                      "description": "List of recipient email addresses",
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "to_addresses",
                    "subject",
                    "body_text"
                  ],
                  "type": "object"
                },
                "name": "compose_email"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": false,
                  "openWorldHint": true,
                  "readOnlyHint": false,
                  "title": "Reply to Email"
                },
                "description": "Reply to an email. The reply will be sent from the mailbox's email address to the original sender. Rate limited per plan (Standard: 30/hr, Plus: 60/hr).",
                "inputSchema": {
                  "properties": {
                    "body_html": {
                      "description": "Optional HTML body of the reply. If not provided, body_text will be used.",
                      "type": "string"
                    },
                    "body_text": {
                      "description": "Plain text body of the reply",
                      "type": "string"
                    },
                    "email_id": {
                      "description": "The email ID to reply to",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID containing the email to reply to",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "email_id",
                    "body_text"
                  ],
                  "type": "object"
                },
                "name": "reply_email"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": false,
                  "openWorldHint": true,
                  "readOnlyHint": false,
                  "title": "Forward Email"
                },
                "description": "Forward an email to one or more recipients. The forward will be sent from the mailbox's email address. Rate limited per plan (Standard: 30/hr, Plus: 60/hr). Max recipients per plan (Standard: 5, Plus: 10).",
                "inputSchema": {
                  "properties": {
                    "email_id": {
                      "description": "The email ID to forward",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID containing the email to forward",
                      "type": "string"
                    },
                    "message": {
                      "description": "Optional message to include above the forwarded email",
                      "type": "string"
                    },
                    "to_addresses": {
                      "description": "List of email addresses to forward to (max 5)",
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "email_id",
                    "to_addresses"
                  ],
                  "type": "object"
                },
                "name": "forward_email"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Email Templates"
                },
                "description": "List email templates available for composing emails. Templates contain pre-written subject and body content with optional variables like {{first_name}} that can be filled in.",
                "inputSchema": {
                  "properties": {
                    "category": {
                      "description": "Optional: filter by category (general, outreach, followup, newsletter)",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "Optional: filter templates for a specific mailbox. If omitted, returns all templates.",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "name": "list_templates"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Email Template"
                },
                "description": "Get the full content of an email template including subject, body, and variables.",
                "inputSchema": {
                  "properties": {
                    "template_id": {
                      "description": "The template ID to retrieve",
                      "type": "string"
                    }
                  },
                  "required": [
                    "template_id"
                  ],
                  "type": "object"
                },
                "name": "get_template"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": false,
                  "readOnlyHint": false,
                  "title": "Create Draft Email"
                },
                "description": "Create a draft email for the user to review and approve before sending. This is the preferred way for AI agents to compose emails - the user can review, edit, and approve drafts from the web dashboard. Drafts expire after 72 hours if not acted on. Rate limited per plan.",
                "inputSchema": {
                  "properties": {
                    "body_html": {
                      "description": "Optional HTML body. If not provided, body_text will be converted to HTML.",
                      "type": "string"
                    },
                    "body_text": {
                      "description": "Plain text body of the email",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID to create the draft for",
                      "type": "string"
                    },
                    "scheduled_at": {
                      "description": "Optional: ISO 8601 date to schedule the send for (e.g., \"2025-01-15T09:00:00Z\"). If set, the email will be sent at this time after approval.",
                      "type": "string"
                    },
                    "subject": {
                      "description": "Email subject line",
                      "type": "string"
                    },
                    "template_id": {
                      "description": "Optional: template ID to base the draft on",
                      "type": "string"
                    },
                    "to_addresses": {
                      "description": "List of recipient email addresses",
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "to_addresses",
                    "subject",
                    "body_text"
                  ],
                  "type": "object"
                },
                "name": "create_draft"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Draft Emails"
                },
                "description": "List draft emails pending review. Shows drafts created by AI agents that the user can approve or reject.",
                "inputSchema": {
                  "properties": {
                    "limit": {
                      "default": 20,
                      "description": "Maximum number of drafts to return (1-50)",
                      "type": "number"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID to list drafts for",
                      "type": "string"
                    },
                    "status": {
                      "description": "Filter by status: pending_review, approved, rejected, sent, expired",
                      "enum": [
                        "pending_review",
                        "approved",
                        "rejected",
                        "sent",
                        "expired"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id"
                  ],
                  "type": "object"
                },
                "name": "list_drafts"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Sent Emails"
                },
                "description": "List emails sent from a mailbox. Shows all sent emails whether sent by the user (web), AI agent (MCP), or API. Includes delivery status and sent_via source.",
                "inputSchema": {
                  "properties": {
                    "limit": {
                      "default": 20,
                      "description": "Maximum number of emails to return (1-100)",
                      "type": "number"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID to list sent emails for",
                      "type": "string"
                    },
                    "offset": {
                      "default": 0,
                      "description": "Number of emails to skip for pagination",
                      "type": "number"
                    },
                    "sent_via": {
                      "description": "Optional: filter by how the email was sent",
                      "enum": [
                        "web",
                        "mcp",
                        "api"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id"
                  ],
                  "type": "object"
                },
                "name": "list_sent_emails"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Aliases"
                },
                "description": "List all @po6.com forwarding aliases owned by the user. Returns alias address, forwarding destination, subscription plan, active status, and plus addressing settings.",
                "inputSchema": {
                  "properties": {
                    "active_only": {
                      "default": false,
                      "description": "Only return active aliases",
                      "type": "boolean"
                    }
                  },
                  "type": "object"
                },
                "name": "list_aliases"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Alias Details"
                },
                "description": "Get detailed information about a specific @po6.com alias including forwarding destination, verification status, subscription plan, plus addressing, and URL redirect settings.",
                "inputSchema": {
                  "properties": {
                    "alias_id": {
                      "description": "The alias ID to retrieve",
                      "type": "string"
                    }
                  },
                  "required": [
                    "alias_id"
                  ],
                  "type": "object"
                },
                "name": "get_alias"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": true,
                  "title": "Update Alias"
                },
                "description": "Update a @po6.com alias settings. Can change forwarding address (triggers re-verification), toggle active status, or configure plus addressing. Cannot create or delete aliases.",
                "inputSchema": {
                  "properties": {
                    "alias_id": {
                      "description": "The alias ID to update",
                      "type": "string"
                    },
                    "forward_to": {
                      "description": "New forwarding email address (will require re-verification)",
                      "type": "string"
                    },
                    "is_active": {
                      "description": "Enable or disable the alias (requires active subscription)",
                      "type": "boolean"
                    },
                    "plus_addressing_enabled": {
                      "description": "Enable or disable plus addressing (e.g. alias+tag@po6.com)",
                      "type": "boolean"
                    },
                    "plus_tag_auto_label": {
                      "description": "Automatically label forwarded emails with the plus tag",
                      "type": "boolean"
                    }
                  },
                  "required": [
                    "alias_id"
                  ],
                  "type": "object"
                },
                "name": "update_alias"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Domains"
                },
                "description": "List all custom (BYOD) domains owned by the user. Returns domain name, verification status, catchall config, alias count, and BYOD subscription plan with limits.",
                "inputSchema": {
                  "properties": {},
                  "type": "object"
                },
                "name": "list_domains"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Domain Details"
                },
                "description": "Get detailed information about a custom domain including verification status, MX records, catchall configuration, aliases, and BYOD plan limits.",
                "inputSchema": {
                  "properties": {
                    "domain_id": {
                      "description": "The domain ID to retrieve",
                      "type": "string"
                    }
                  },
                  "required": [
                    "domain_id"
                  ],
                  "type": "object"
                },
                "name": "get_domain"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": true,
                  "title": "Update Domain Alias"
                },
                "description": "Update a domain alias settings. Can change forwarding address (triggers re-verification), toggle active status (subject to plan limits), or configure plus addressing.",
                "inputSchema": {
                  "properties": {
                    "alias_id": {
                      "description": "The domain alias ID to update",
                      "type": "string"
                    },
                    "domain_id": {
                      "description": "The domain ID containing the alias",
                      "type": "string"
                    },
                    "forward_to": {
                      "description": "New forwarding email address (will require re-verification)",
                      "type": "string"
                    },
                    "is_active": {
                      "description": "Enable or disable the alias (subject to plan active alias limit)",
                      "type": "boolean"
                    },
                    "plus_addressing_enabled": {
                      "description": "Enable or disable plus addressing",
                      "type": "boolean"
                    },
                    "plus_tag_auto_label": {
                      "description": "Automatically label forwarded emails with the plus tag",
                      "type": "boolean"
                    }
                  },
                  "required": [
                    "domain_id",
                    "alias_id"
                  ],
                  "type": "object"
                },
                "name": "update_domain_alias"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": true,
                  "title": "Update Catchall"
                },
                "description": "Enable, disable, or update the catchall configuration for a custom domain. Catchall forwards all unmatched emails to a specified address. Changing the forward address requires re-verification.",
                "inputSchema": {
                  "properties": {
                    "domain_id": {
                      "description": "The domain ID to configure catchall for",
                      "type": "string"
                    },
                    "enabled": {
                      "description": "Enable or disable catchall",
                      "type": "boolean"
                    },
                    "forward_to": {
                      "description": "Email address to forward catchall emails to (required when enabling)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "domain_id"
                  ],
                  "type": "object"
                },
                "name": "update_catchall"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Landing Page Templates"
                },
                "description": "List available landing page templates. Returns template summaries including name, category, and preview information.",
                "inputSchema": {
                  "properties": {
                    "category": {
                      "description": "Optional: filter templates by category",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "name": "list_landing_page_templates"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Landing Page Template"
                },
                "description": "Get full details of a landing page template by ID, including widget configuration and default content.",
                "inputSchema": {
                  "properties": {
                    "template_id": {
                      "description": "The template ID to retrieve",
                      "type": "string"
                    }
                  },
                  "required": [
                    "template_id"
                  ],
                  "type": "object"
                },
                "name": "get_landing_page_template"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Landing Pages"
                },
                "description": "List the user's landing pages with optional filtering by status. Returns page summaries including title, status, URL, and last modified date.",
                "inputSchema": {
                  "properties": {
                    "limit": {
                      "default": 20,
                      "description": "Maximum number of landing pages to return (1-100)",
                      "type": "number"
                    },
                    "offset": {
                      "default": 0,
                      "description": "Number of landing pages to skip for pagination",
                      "type": "number"
                    },
                    "status": {
                      "description": "Filter by landing page status",
                      "enum": [
                        "draft",
                        "published",
                        "archived"
                      ],
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "name": "list_landing_pages"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Landing Page"
                },
                "description": "Get a landing page's full details including widget configuration, SEO settings, linked alias/domain, and publication status.",
                "inputSchema": {
                  "properties": {
                    "page_id": {
                      "description": "The landing page ID to retrieve",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id"
                  ],
                  "type": "object"
                },
                "name": "get_landing_page"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Landing Page Stats"
                },
                "description": "Get analytics and statistics for a landing page including page views, unique visitors, and lead conversion metrics.",
                "inputSchema": {
                  "properties": {
                    "days": {
                      "default": 30,
                      "description": "Number of days of stats to retrieve",
                      "type": "number"
                    },
                    "page_id": {
                      "description": "The landing page ID to get stats for",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id"
                  ],
                  "type": "object"
                },
                "name": "get_landing_page_stats"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Landing Page Leads"
                },
                "description": "List leads/form submissions captured by landing pages. Returns lead details including email, name, submission date, and source page.",
                "inputSchema": {
                  "properties": {
                    "limit": {
                      "default": 20,
                      "description": "Maximum number of leads to return (1-100)",
                      "type": "number"
                    },
                    "offset": {
                      "default": 0,
                      "description": "Number of leads to skip for pagination",
                      "type": "number"
                    },
                    "page_id": {
                      "description": "Optional: filter leads to a specific landing page",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "name": "list_landing_page_leads"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": false,
                  "readOnlyHint": false,
                  "title": "Create Landing Page"
                },
                "description": "Create a new landing page from a template. The page is created in draft status. Optionally link it to a po6 alias or BYOD domain alias for URL routing.",
                "inputSchema": {
                  "properties": {
                    "alias_id": {
                      "description": "Optional: po6 alias ID to link this landing page to",
                      "type": "string"
                    },
                    "domain_alias_id": {
                      "description": "Optional: BYOD domain alias ID to link this landing page to",
                      "type": "string"
                    },
                    "domain_id": {
                      "description": "Optional: BYOD domain ID (required when using domain_alias_id)",
                      "type": "string"
                    },
                    "template_id": {
                      "description": "The template ID to create the landing page from",
                      "type": "string"
                    },
                    "title": {
                      "description": "Optional title for the landing page",
                      "type": "string"
                    }
                  },
                  "required": [
                    "template_id"
                  ],
                  "type": "object"
                },
                "name": "create_landing_page"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": true,
                  "readOnlyHint": false,
                  "title": "Update Landing Page"
                },
                "description": "Update a landing page's configuration, title, or SEO settings. Pass the full widget config JSON to update the page layout and content.",
                "inputSchema": {
                  "properties": {
                    "config": {
                      "description": "JSON string of the widget configuration for the page layout and content",
                      "type": "string"
                    },
                    "favicon_url": {
                      "description": "Custom favicon URL for the page",
                      "type": "string"
                    },
                    "lead_notify_email": {
                      "description": "Email address to send lead notifications to",
                      "type": "string"
                    },
                    "meta_description": {
                      "description": "SEO meta description for the page",
                      "type": "string"
                    },
                    "meta_title": {
                      "description": "SEO meta title for the page",
                      "type": "string"
                    },
                    "notify_on_lead": {
                      "description": "Whether to send email notifications when a new lead is captured",
                      "type": "boolean"
                    },
                    "og_image_url": {
                      "description": "Open Graph image URL for social media sharing",
                      "type": "string"
                    },
                    "page_id": {
                      "description": "The landing page ID to update",
                      "type": "string"
                    },
                    "title": {
                      "description": "New title for the landing page",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id"
                  ],
                  "type": "object"
                },
                "name": "update_landing_page"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": false,
                  "openWorldHint": true,
                  "readOnlyHint": false,
                  "title": "Publish Landing Page"
                },
                "description": "Publish a landing page, making it publicly accessible at its URL. Requires a two-step confirmation: first call returns a confirmation_token, second call with the token performs the publish.",
                "inputSchema": {
                  "properties": {
                    "confirmation_token": {
                      "description": "Confirmation token from the first call. Required to actually perform the publish.",
                      "type": "string"
                    },
                    "page_id": {
                      "description": "The landing page ID to publish",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id"
                  ],
                  "type": "object"
                },
                "name": "publish_landing_page"
              },
              {
                "annotations": {
                  "destructiveHint": true,
                  "idempotentHint": false,
                  "readOnlyHint": false,
                  "title": "Unpublish Landing Page"
                },
                "description": "Unpublish a landing page, removing it from public access. The page returns to draft status. Requires a two-step confirmation: first call returns a confirmation_token, second call with the token performs the unpublish.",
                "inputSchema": {
                  "properties": {
                    "confirmation_token": {
                      "description": "Confirmation token from the first call. Required to actually perform the unpublish.",
                      "type": "string"
                    },
                    "page_id": {
                      "description": "The landing page ID to unpublish",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id"
                  ],
                  "type": "object"
                },
                "name": "unpublish_landing_page"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": false,
                  "openWorldHint": true,
                  "readOnlyHint": false,
                  "title": "Assign Landing Page Domain"
                },
                "description": "Assign a custom domain to a landing page so it can be accessed via that domain. Requires a two-step confirmation: first call returns a confirmation_token, second call with the token performs the assignment.",
                "inputSchema": {
                  "properties": {
                    "confirmation_token": {
                      "description": "Confirmation token from the first call. Required to actually perform the domain assignment.",
                      "type": "string"
                    },
                    "domain": {
                      "description": "The custom domain to assign (e.g., \"landing.example.com\")",
                      "type": "string"
                    },
                    "page_id": {
                      "description": "The landing page ID to assign the domain to",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id",
                    "domain"
                  ],
                  "type": "object"
                },
                "name": "assign_landing_page_domain"
              },
              {
                "annotations": {
                  "destructiveHint": true,
                  "idempotentHint": false,
                  "readOnlyHint": false,
                  "title": "Archive Landing Page"
                },
                "description": "Archive (soft-delete) a landing page. If the page is published, it will be unpublished first. Requires a two-step confirmation: first call returns a confirmation_token, second call with the token performs the archive.",
                "inputSchema": {
                  "properties": {
                    "confirmation_token": {
                      "description": "Confirmation token from the first call. Required to actually perform the archive.",
                      "type": "string"
                    },
                    "page_id": {
                      "description": "The landing page ID to archive",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id"
                  ],
                  "type": "object"
                },
                "name": "archive_landing_page"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Download Landing Page"
                },
                "description": "Download a published landing page as a standalone HTML file. Returns the full HTML content of the page. The page must be published.",
                "inputSchema": {
                  "properties": {
                    "page_id": {
                      "description": "The landing page ID to download",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id"
                  ],
                  "type": "object"
                },
                "name": "download_landing_page"
              }
            ]
          }
        },
        "url": "https://mcp.po6.com"
      },
      "latency_ms": 19.52,
      "status": "ok"
    },
    "transport_compliance_probe": {
      "details": {
        "bad_protocol_error": null,
        "bad_protocol_headers": {
          "content-type": "application/json",
          "www-authenticate": "Bearer resource_metadata=\"https://mcp.po6.com/.well-known/oauth-protected-resource\""
        },
        "bad_protocol_payload": {
          "id": 410,
          "jsonrpc": "2.0",
          "result": {
            "tools": [
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Mailboxes"
                },
                "description": "List all mailboxes the API key has access to, with basic stats for each",
                "inputSchema": {
                  "properties": {},
                  "type": "object"
                },
                "name": "list_mailboxes"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Mailbox Stats"
                },
                "description": "Get detailed statistics for a specific mailbox including email counts, storage usage, and folder breakdown",
                "inputSchema": {
                  "properties": {
                    "mailbox_id": {
                      "description": "The mailbox ID to get stats for",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id"
                  ],
                  "type": "object"
                },
                "name": "get_mailbox_stats"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Emails"
                },
                "description": "List emails in a mailbox with optional filtering. Returns email metadata without full content.",
                "inputSchema": {
                  "properties": {
                    "folder": {
                      "default": "inbox",
                      "description": "Filter by folder (inbox, spam, archive, trash, or custom folder name)",
                      "type": "string"
                    },
                    "from_filter": {
                      "description": "Filter by sender email address (partial match)",
                      "type": "string"
                    },
                    "has_attachments": {
                      "description": "Only return emails with attachments",
                      "type": "boolean"
                    },
                    "limit": {
                      "default": 20,
                      "description": "Maximum number of emails to return (1-100)",
                      "type": "number"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID to list emails from",
                      "type": "string"
                    },
                    "offset": {
                      "default": 0,
                      "description": "Number of emails to skip for pagination",
                      "type": "number"
                    },
                    "since": {
                      "description": "Only return emails received after this ISO 8601 date",
                      "type": "string"
                    },
                    "starred_only": {
                      "default": false,
                      "description": "Only return starred emails",
                      "type": "boolean"
                    },
                    "subject_contains": {
                      "description": "Filter by subject containing this text",
                      "type": "string"
                    },
                    "unread_only": {
                      "default": false,
                      "description": "Only return unread emails",
                      "type": "boolean"
                    },
                    "until": {
                      "description": "Only return emails received before this ISO 8601 date",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id"
                  ],
                  "type": "object"
                },
                "name": "list_emails"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": true,
                  "readOnlyHint": true,
                  "title": "Read Email"
                },
                "description": "Get the full content of a specific email including body text, HTML, headers, and attachment metadata. To mark the email as read, use mark_email separately.",
                "inputSchema": {
                  "properties": {
                    "email_id": {
                      "description": "The email ID to retrieve",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID containing the email",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "email_id"
                  ],
                  "type": "object"
                },
                "name": "get_email"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Search Emails"
                },
                "description": "Search emails across one or all accessible mailboxes using text search",
                "inputSchema": {
                  "properties": {
                    "limit": {
                      "default": 20,
                      "description": "Maximum number of results (1-50)",
                      "type": "number"
                    },
                    "mailbox_id": {
                      "description": "Optional: limit search to a specific mailbox",
                      "type": "string"
                    },
                    "query": {
                      "description": "Search query to match against sender, subject, and snippet",
                      "type": "string"
                    }
                  },
                  "required": [
                    "query"
                  ],
                  "type": "object"
                },
                "name": "search_emails"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": true,
                  "readOnlyHint": false,
                  "title": "Mark Email"
                },
                "description": "Mark an email as read/unread or starred/unstarred",
                "inputSchema": {
                  "properties": {
                    "email_id": {
                      "description": "The email ID to mark",
                      "type": "string"
                    },
                    "is_read": {
                      "description": "Set read status (true = read, false = unread)",
                      "type": "boolean"
                    },
                    "is_starred": {
                      "description": "Set starred status (true = starred, false = unstarred)",
                      "type": "boolean"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID containing the email",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "email_id"
                  ],
                  "type": "object"
                },
                "name": "mark_email"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": true,
                  "readOnlyHint": false,
                  "title": "Move Email"
                },
                "description": "Move an email to a different folder",
                "inputSchema": {
                  "properties": {
                    "email_id": {
                      "description": "The email ID to move",
                      "type": "string"
                    },
                    "folder": {
                      "description": "Target folder (inbox, spam, archive, trash, or custom folder name)",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID containing the email",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "email_id",
                    "folder"
                  ],
                  "type": "object"
                },
                "name": "move_email"
              },
              {
                "annotations": {
                  "destructiveHint": true,
                  "idempotentHint": false,
                  "readOnlyHint": false,
                  "title": "Delete Email"
                },
                "description": "Permanently delete an email. This action cannot be undone. Consider moving to trash first. Requires a two-step confirmation: first call returns a confirmation_token, second call with the token performs the deletion.",
                "inputSchema": {
                  "properties": {
                    "confirmation_token": {
                      "description": "Confirmation token from the first call. Required to actually perform the deletion.",
                      "type": "string"
                    },
                    "email_id": {
                      "description": "The email ID to delete",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID containing the email",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "email_id"
                  ],
                  "type": "object"
                },
                "name": "delete_email"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Folders"
                },
                "description": "List all folders in a mailbox including system folders and custom folders",
                "inputSchema": {
                  "properties": {
                    "mailbox_id": {
                      "description": "The mailbox ID to list folders for",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id"
                  ],
                  "type": "object"
                },
                "name": "list_folders"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Email Lists"
                },
                "description": "List all email contact lists for the user. Email lists help organize contacts for outreach campaigns and bulk operations. Requires a paid plan (Standard or Plus).",
                "inputSchema": {
                  "properties": {},
                  "type": "object"
                },
                "name": "list_email_lists"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Email List Contacts"
                },
                "description": "Get contacts from a specific email list. Returns contact details including email, name, company, and status. Only active contacts can receive emails.",
                "inputSchema": {
                  "properties": {
                    "limit": {
                      "default": 50,
                      "description": "Maximum number of contacts to return (1-200)",
                      "type": "number"
                    },
                    "list_id": {
                      "description": "The email list ID to get contacts from",
                      "type": "string"
                    },
                    "offset": {
                      "default": 0,
                      "description": "Number of contacts to skip for pagination",
                      "type": "number"
                    },
                    "status": {
                      "description": "Filter by contact status (active, unsubscribed, bounced). Default: all statuses.",
                      "enum": [
                        "active",
                        "unsubscribed",
                        "bounced"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "list_id"
                  ],
                  "type": "object"
                },
                "name": "get_email_list_contacts"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": false,
                  "openWorldHint": true,
                  "readOnlyHint": false,
                  "title": "Compose New Email"
                },
                "description": "Compose and send a new email to one or more recipients. Requires a paid plan (Standard or Plus). Rate limits vary by plan (Standard: 30/hr, 200/day; Plus: 60/hr, 500/day).",
                "inputSchema": {
                  "properties": {
                    "body_html": {
                      "description": "Optional HTML body. If not provided, body_text will be converted to HTML.",
                      "type": "string"
                    },
                    "body_text": {
                      "description": "Plain text body of the email",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID to send from",
                      "type": "string"
                    },
                    "subject": {
                      "description": "Email subject line",
                      "type": "string"
                    },
                    "to_addresses": {
                      "description": "List of recipient email addresses",
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "to_addresses",
                    "subject",
                    "body_text"
                  ],
                  "type": "object"
                },
                "name": "compose_email"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": false,
                  "openWorldHint": true,
                  "readOnlyHint": false,
                  "title": "Reply to Email"
                },
                "description": "Reply to an email. The reply will be sent from the mailbox's email address to the original sender. Rate limited per plan (Standard: 30/hr, Plus: 60/hr).",
                "inputSchema": {
                  "properties": {
                    "body_html": {
                      "description": "Optional HTML body of the reply. If not provided, body_text will be used.",
                      "type": "string"
                    },
                    "body_text": {
                      "description": "Plain text body of the reply",
                      "type": "string"
                    },
                    "email_id": {
                      "description": "The email ID to reply to",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID containing the email to reply to",
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "email_id",
                    "body_text"
                  ],
                  "type": "object"
                },
                "name": "reply_email"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": false,
                  "openWorldHint": true,
                  "readOnlyHint": false,
                  "title": "Forward Email"
                },
                "description": "Forward an email to one or more recipients. The forward will be sent from the mailbox's email address. Rate limited per plan (Standard: 30/hr, Plus: 60/hr). Max recipients per plan (Standard: 5, Plus: 10).",
                "inputSchema": {
                  "properties": {
                    "email_id": {
                      "description": "The email ID to forward",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID containing the email to forward",
                      "type": "string"
                    },
                    "message": {
                      "description": "Optional message to include above the forwarded email",
                      "type": "string"
                    },
                    "to_addresses": {
                      "description": "List of email addresses to forward to (max 5)",
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "email_id",
                    "to_addresses"
                  ],
                  "type": "object"
                },
                "name": "forward_email"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Email Templates"
                },
                "description": "List email templates available for composing emails. Templates contain pre-written subject and body content with optional variables like {{first_name}} that can be filled in.",
                "inputSchema": {
                  "properties": {
                    "category": {
                      "description": "Optional: filter by category (general, outreach, followup, newsletter)",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "Optional: filter templates for a specific mailbox. If omitted, returns all templates.",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "name": "list_templates"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Email Template"
                },
                "description": "Get the full content of an email template including subject, body, and variables.",
                "inputSchema": {
                  "properties": {
                    "template_id": {
                      "description": "The template ID to retrieve",
                      "type": "string"
                    }
                  },
                  "required": [
                    "template_id"
                  ],
                  "type": "object"
                },
                "name": "get_template"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": false,
                  "readOnlyHint": false,
                  "title": "Create Draft Email"
                },
                "description": "Create a draft email for the user to review and approve before sending. This is the preferred way for AI agents to compose emails - the user can review, edit, and approve drafts from the web dashboard. Drafts expire after 72 hours if not acted on. Rate limited per plan.",
                "inputSchema": {
                  "properties": {
                    "body_html": {
                      "description": "Optional HTML body. If not provided, body_text will be converted to HTML.",
                      "type": "string"
                    },
                    "body_text": {
                      "description": "Plain text body of the email",
                      "type": "string"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID to create the draft for",
                      "type": "string"
                    },
                    "scheduled_at": {
                      "description": "Optional: ISO 8601 date to schedule the send for (e.g., \"2025-01-15T09:00:00Z\"). If set, the email will be sent at this time after approval.",
                      "type": "string"
                    },
                    "subject": {
                      "description": "Email subject line",
                      "type": "string"
                    },
                    "template_id": {
                      "description": "Optional: template ID to base the draft on",
                      "type": "string"
                    },
                    "to_addresses": {
                      "description": "List of recipient email addresses",
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "mailbox_id",
                    "to_addresses",
                    "subject",
                    "body_text"
                  ],
                  "type": "object"
                },
                "name": "create_draft"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Draft Emails"
                },
                "description": "List draft emails pending review. Shows drafts created by AI agents that the user can approve or reject.",
                "inputSchema": {
                  "properties": {
                    "limit": {
                      "default": 20,
                      "description": "Maximum number of drafts to return (1-50)",
                      "type": "number"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID to list drafts for",
                      "type": "string"
                    },
                    "status": {
                      "description": "Filter by status: pending_review, approved, rejected, sent, expired",
                      "enum": [
                        "pending_review",
                        "approved",
                        "rejected",
                        "sent",
                        "expired"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id"
                  ],
                  "type": "object"
                },
                "name": "list_drafts"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Sent Emails"
                },
                "description": "List emails sent from a mailbox. Shows all sent emails whether sent by the user (web), AI agent (MCP), or API. Includes delivery status and sent_via source.",
                "inputSchema": {
                  "properties": {
                    "limit": {
                      "default": 20,
                      "description": "Maximum number of emails to return (1-100)",
                      "type": "number"
                    },
                    "mailbox_id": {
                      "description": "The mailbox ID to list sent emails for",
                      "type": "string"
                    },
                    "offset": {
                      "default": 0,
                      "description": "Number of emails to skip for pagination",
                      "type": "number"
                    },
                    "sent_via": {
                      "description": "Optional: filter by how the email was sent",
                      "enum": [
                        "web",
                        "mcp",
                        "api"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "mailbox_id"
                  ],
                  "type": "object"
                },
                "name": "list_sent_emails"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Aliases"
                },
                "description": "List all @po6.com forwarding aliases owned by the user. Returns alias address, forwarding destination, subscription plan, active status, and plus addressing settings.",
                "inputSchema": {
                  "properties": {
                    "active_only": {
                      "default": false,
                      "description": "Only return active aliases",
                      "type": "boolean"
                    }
                  },
                  "type": "object"
                },
                "name": "list_aliases"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Alias Details"
                },
                "description": "Get detailed information about a specific @po6.com alias including forwarding destination, verification status, subscription plan, plus addressing, and URL redirect settings.",
                "inputSchema": {
                  "properties": {
                    "alias_id": {
                      "description": "The alias ID to retrieve",
                      "type": "string"
                    }
                  },
                  "required": [
                    "alias_id"
                  ],
                  "type": "object"
                },
                "name": "get_alias"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": true,
                  "title": "Update Alias"
                },
                "description": "Update a @po6.com alias settings. Can change forwarding address (triggers re-verification), toggle active status, or configure plus addressing. Cannot create or delete aliases.",
                "inputSchema": {
                  "properties": {
                    "alias_id": {
                      "description": "The alias ID to update",
                      "type": "string"
                    },
                    "forward_to": {
                      "description": "New forwarding email address (will require re-verification)",
                      "type": "string"
                    },
                    "is_active": {
                      "description": "Enable or disable the alias (requires active subscription)",
                      "type": "boolean"
                    },
                    "plus_addressing_enabled": {
                      "description": "Enable or disable plus addressing (e.g. alias+tag@po6.com)",
                      "type": "boolean"
                    },
                    "plus_tag_auto_label": {
                      "description": "Automatically label forwarded emails with the plus tag",
                      "type": "boolean"
                    }
                  },
                  "required": [
                    "alias_id"
                  ],
                  "type": "object"
                },
                "name": "update_alias"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Domains"
                },
                "description": "List all custom (BYOD) domains owned by the user. Returns domain name, verification status, catchall config, alias count, and BYOD subscription plan with limits.",
                "inputSchema": {
                  "properties": {},
                  "type": "object"
                },
                "name": "list_domains"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Domain Details"
                },
                "description": "Get detailed information about a custom domain including verification status, MX records, catchall configuration, aliases, and BYOD plan limits.",
                "inputSchema": {
                  "properties": {
                    "domain_id": {
                      "description": "The domain ID to retrieve",
                      "type": "string"
                    }
                  },
                  "required": [
                    "domain_id"
                  ],
                  "type": "object"
                },
                "name": "get_domain"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": true,
                  "title": "Update Domain Alias"
                },
                "description": "Update a domain alias settings. Can change forwarding address (triggers re-verification), toggle active status (subject to plan limits), or configure plus addressing.",
                "inputSchema": {
                  "properties": {
                    "alias_id": {
                      "description": "The domain alias ID to update",
                      "type": "string"
                    },
                    "domain_id": {
                      "description": "The domain ID containing the alias",
                      "type": "string"
                    },
                    "forward_to": {
                      "description": "New forwarding email address (will require re-verification)",
                      "type": "string"
                    },
                    "is_active": {
                      "description": "Enable or disable the alias (subject to plan active alias limit)",
                      "type": "boolean"
                    },
                    "plus_addressing_enabled": {
                      "description": "Enable or disable plus addressing",
                      "type": "boolean"
                    },
                    "plus_tag_auto_label": {
                      "description": "Automatically label forwarded emails with the plus tag",
                      "type": "boolean"
                    }
                  },
                  "required": [
                    "domain_id",
                    "alias_id"
                  ],
                  "type": "object"
                },
                "name": "update_domain_alias"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": true,
                  "title": "Update Catchall"
                },
                "description": "Enable, disable, or update the catchall configuration for a custom domain. Catchall forwards all unmatched emails to a specified address. Changing the forward address requires re-verification.",
                "inputSchema": {
                  "properties": {
                    "domain_id": {
                      "description": "The domain ID to configure catchall for",
                      "type": "string"
                    },
                    "enabled": {
                      "description": "Enable or disable catchall",
                      "type": "boolean"
                    },
                    "forward_to": {
                      "description": "Email address to forward catchall emails to (required when enabling)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "domain_id"
                  ],
                  "type": "object"
                },
                "name": "update_catchall"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Landing Page Templates"
                },
                "description": "List available landing page templates. Returns template summaries including name, category, and preview information.",
                "inputSchema": {
                  "properties": {
                    "category": {
                      "description": "Optional: filter templates by category",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "name": "list_landing_page_templates"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Landing Page Template"
                },
                "description": "Get full details of a landing page template by ID, including widget configuration and default content.",
                "inputSchema": {
                  "properties": {
                    "template_id": {
                      "description": "The template ID to retrieve",
                      "type": "string"
                    }
                  },
                  "required": [
                    "template_id"
                  ],
                  "type": "object"
                },
                "name": "get_landing_page_template"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Landing Pages"
                },
                "description": "List the user's landing pages with optional filtering by status. Returns page summaries including title, status, URL, and last modified date.",
                "inputSchema": {
                  "properties": {
                    "limit": {
                      "default": 20,
                      "description": "Maximum number of landing pages to return (1-100)",
                      "type": "number"
                    },
                    "offset": {
                      "default": 0,
                      "description": "Number of landing pages to skip for pagination",
                      "type": "number"
                    },
                    "status": {
                      "description": "Filter by landing page status",
                      "enum": [
                        "draft",
                        "published",
                        "archived"
                      ],
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "name": "list_landing_pages"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Landing Page"
                },
                "description": "Get a landing page's full details including widget configuration, SEO settings, linked alias/domain, and publication status.",
                "inputSchema": {
                  "properties": {
                    "page_id": {
                      "description": "The landing page ID to retrieve",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id"
                  ],
                  "type": "object"
                },
                "name": "get_landing_page"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Get Landing Page Stats"
                },
                "description": "Get analytics and statistics for a landing page including page views, unique visitors, and lead conversion metrics.",
                "inputSchema": {
                  "properties": {
                    "days": {
                      "default": 30,
                      "description": "Number of days of stats to retrieve",
                      "type": "number"
                    },
                    "page_id": {
                      "description": "The landing page ID to get stats for",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id"
                  ],
                  "type": "object"
                },
                "name": "get_landing_page_stats"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "List Landing Page Leads"
                },
                "description": "List leads/form submissions captured by landing pages. Returns lead details including email, name, submission date, and source page.",
                "inputSchema": {
                  "properties": {
                    "limit": {
                      "default": 20,
                      "description": "Maximum number of leads to return (1-100)",
                      "type": "number"
                    },
                    "offset": {
                      "default": 0,
                      "description": "Number of leads to skip for pagination",
                      "type": "number"
                    },
                    "page_id": {
                      "description": "Optional: filter leads to a specific landing page",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "name": "list_landing_page_leads"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": false,
                  "readOnlyHint": false,
                  "title": "Create Landing Page"
                },
                "description": "Create a new landing page from a template. The page is created in draft status. Optionally link it to a po6 alias or BYOD domain alias for URL routing.",
                "inputSchema": {
                  "properties": {
                    "alias_id": {
                      "description": "Optional: po6 alias ID to link this landing page to",
                      "type": "string"
                    },
                    "domain_alias_id": {
                      "description": "Optional: BYOD domain alias ID to link this landing page to",
                      "type": "string"
                    },
                    "domain_id": {
                      "description": "Optional: BYOD domain ID (required when using domain_alias_id)",
                      "type": "string"
                    },
                    "template_id": {
                      "description": "The template ID to create the landing page from",
                      "type": "string"
                    },
                    "title": {
                      "description": "Optional title for the landing page",
                      "type": "string"
                    }
                  },
                  "required": [
                    "template_id"
                  ],
                  "type": "object"
                },
                "name": "create_landing_page"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": true,
                  "readOnlyHint": false,
                  "title": "Update Landing Page"
                },
                "description": "Update a landing page's configuration, title, or SEO settings. Pass the full widget config JSON to update the page layout and content.",
                "inputSchema": {
                  "properties": {
                    "config": {
                      "description": "JSON string of the widget configuration for the page layout and content",
                      "type": "string"
                    },
                    "favicon_url": {
                      "description": "Custom favicon URL for the page",
                      "type": "string"
                    },
                    "lead_notify_email": {
                      "description": "Email address to send lead notifications to",
                      "type": "string"
                    },
                    "meta_description": {
                      "description": "SEO meta description for the page",
                      "type": "string"
                    },
                    "meta_title": {
                      "description": "SEO meta title for the page",
                      "type": "string"
                    },
                    "notify_on_lead": {
                      "description": "Whether to send email notifications when a new lead is captured",
                      "type": "boolean"
                    },
                    "og_image_url": {
                      "description": "Open Graph image URL for social media sharing",
                      "type": "string"
                    },
                    "page_id": {
                      "description": "The landing page ID to update",
                      "type": "string"
                    },
                    "title": {
                      "description": "New title for the landing page",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id"
                  ],
                  "type": "object"
                },
                "name": "update_landing_page"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": false,
                  "openWorldHint": true,
                  "readOnlyHint": false,
                  "title": "Publish Landing Page"
                },
                "description": "Publish a landing page, making it publicly accessible at its URL. Requires a two-step confirmation: first call returns a confirmation_token, second call with the token performs the publish.",
                "inputSchema": {
                  "properties": {
                    "confirmation_token": {
                      "description": "Confirmation token from the first call. Required to actually perform the publish.",
                      "type": "string"
                    },
                    "page_id": {
                      "description": "The landing page ID to publish",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id"
                  ],
                  "type": "object"
                },
                "name": "publish_landing_page"
              },
              {
                "annotations": {
                  "destructiveHint": true,
                  "idempotentHint": false,
                  "readOnlyHint": false,
                  "title": "Unpublish Landing Page"
                },
                "description": "Unpublish a landing page, removing it from public access. The page returns to draft status. Requires a two-step confirmation: first call returns a confirmation_token, second call with the token performs the unpublish.",
                "inputSchema": {
                  "properties": {
                    "confirmation_token": {
                      "description": "Confirmation token from the first call. Required to actually perform the unpublish.",
                      "type": "string"
                    },
                    "page_id": {
                      "description": "The landing page ID to unpublish",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id"
                  ],
                  "type": "object"
                },
                "name": "unpublish_landing_page"
              },
              {
                "annotations": {
                  "destructiveHint": false,
                  "idempotentHint": false,
                  "openWorldHint": true,
                  "readOnlyHint": false,
                  "title": "Assign Landing Page Domain"
                },
                "description": "Assign a custom domain to a landing page so it can be accessed via that domain. Requires a two-step confirmation: first call returns a confirmation_token, second call with the token performs the assignment.",
                "inputSchema": {
                  "properties": {
                    "confirmation_token": {
                      "description": "Confirmation token from the first call. Required to actually perform the domain assignment.",
                      "type": "string"
                    },
                    "domain": {
                      "description": "The custom domain to assign (e.g., \"landing.example.com\")",
                      "type": "string"
                    },
                    "page_id": {
                      "description": "The landing page ID to assign the domain to",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id",
                    "domain"
                  ],
                  "type": "object"
                },
                "name": "assign_landing_page_domain"
              },
              {
                "annotations": {
                  "destructiveHint": true,
                  "idempotentHint": false,
                  "readOnlyHint": false,
                  "title": "Archive Landing Page"
                },
                "description": "Archive (soft-delete) a landing page. If the page is published, it will be unpublished first. Requires a two-step confirmation: first call returns a confirmation_token, second call with the token performs the archive.",
                "inputSchema": {
                  "properties": {
                    "confirmation_token": {
                      "description": "Confirmation token from the first call. Required to actually perform the archive.",
                      "type": "string"
                    },
                    "page_id": {
                      "description": "The landing page ID to archive",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id"
                  ],
                  "type": "object"
                },
                "name": "archive_landing_page"
              },
              {
                "annotations": {
                  "readOnlyHint": true,
                  "title": "Download Landing Page"
                },
                "description": "Download a published landing page as a standalone HTML file. Returns the full HTML content of the page. The page must be published.",
                "inputSchema": {
                  "properties": {
                    "page_id": {
                      "description": "The landing page ID to download",
                      "type": "string"
                    }
                  },
                  "required": [
                    "page_id"
                  ],
                  "type": "object"
                },
                "name": "download_landing_page"
              }
            ]
          }
        },
        "bad_protocol_status_code": 200,
        "delete_error": null,
        "delete_status_code": 405,
        "expired_session_error": null,
        "expired_session_status_code": 200,
        "issues": [
          "missing_protocol_header",
          "bad_protocol_not_rejected",
          "delete_session_unexpected",
          "expired_session_not_404"
        ],
        "last_event_id_visible": false,
        "protocol_header_present": false,
        "requested_protocol_version": "2025-03-26",
        "session_id_present": true,
        "transport": "streamable-http"
      },
      "latency_ms": 19.84,
      "status": "error"
    },
    "utility_coverage_probe": {
      "details": {
        "completions": {
          "advertised": false,
          "live_probe": "not_executed",
          "sample_target": null
        },
        "initialize_capability_keys": [
          "prompts",
          "resources",
          "tools"
        ],
        "pagination": {
          "metadata_signal": false,
          "next_cursor_methods": [],
          "supported": false
        },
        "tasks": {
          "advertised": false,
          "http_status": 401,
          "probe_status": "auth_required"
        }
      },
      "latency_ms": 45.18,
      "status": "ok"
    }
  },
  "failures": {
    "openid_configuration": {
      "error": "Client error '401 Unauthorized' for url 'https://mcp.po6.com/.well-known/openid-configuration'\nFor more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/401",
      "url": "https://mcp.po6.com/.well-known/openid-configuration"
    },
    "server_card": {
      "error": "Client error '401 Unauthorized' for url 'https://mcp.po6.com/.well-known/mcp/server-card.json'\nFor more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/401",
      "url": "https://mcp.po6.com/.well-known/mcp/server-card.json"
    },
    "transport_compliance_probe": {
      "bad_protocol_error": null,
      "bad_protocol_headers": {
        "content-type": "application/json",
        "www-authenticate": "Bearer resource_metadata=\"https://mcp.po6.com/.well-known/oauth-protected-resource\""
      },
      "bad_protocol_payload": {
        "id": 410,
        "jsonrpc": "2.0",
        "result": {
          "tools": [
            {
              "annotations": {
                "readOnlyHint": true,
                "title": "List Mailboxes"
              },
              "description": "List all mailboxes the API key has access to, with basic stats for each",
              "inputSchema": {
                "properties": {},
                "type": "object"
              },
              "name": "list_mailboxes"
            },
            {
              "annotations": {
                "readOnlyHint": true,
                "title": "Get Mailbox Stats"
              },
              "description": "Get detailed statistics for a specific mailbox including email counts, storage usage, and folder breakdown",
              "inputSchema": {
                "properties": {
                  "mailbox_id": {
                    "description": "The mailbox ID to get stats for",
                    "type": "string"
                  }
                },
                "required": [
                  "mailbox_id"
                ],
                "type": "object"
              },
              "name": "get_mailbox_stats"
            },
            {
              "annotations": {
                "readOnlyHint": true,
                "title": "List Emails"
              },
              "description": "List emails in a mailbox with optional filtering. Returns email metadata without full content.",
              "inputSchema": {
                "properties": {
                  "folder": {
                    "default": "inbox",
                    "description": "Filter by folder (inbox, spam, archive, trash, or custom folder name)",
                    "type": "string"
                  },
                  "from_filter": {
                    "description": "Filter by sender email address (partial match)",
                    "type": "string"
                  },
                  "has_attachments": {
                    "description": "Only return emails with attachments",
                    "type": "boolean"
                  },
                  "limit": {
                    "default": 20,
                    "description": "Maximum number of emails to return (1-100)",
                    "type": "number"
                  },
                  "mailbox_id": {
                    "description": "The mailbox ID to list emails from",
                    "type": "string"
                  },
                  "offset": {
                    "default": 0,
                    "description": "Number of emails to skip for pagination",
                    "type": "number"
                  },
                  "since": {
                    "description": "Only return emails received after this ISO 8601 date",
                    "type": "string"
                  },
                  "starred_only": {
                    "default": false,
                    "description": "Only return starred emails",
                    "type": "boolean"
                  },
                  "subject_contains": {
                    "description": "Filter by subject containing this text",
                    "type": "string"
                  },
                  "unread_only": {
                    "default": false,
                    "description": "Only return unread emails",
                    "type": "boolean"
                  },
                  "until": {
                    "description": "Only return emails received before this ISO 8601 date",
                    "type": "string"
                  }
                },
                "required": [
                  "mailbox_id"
                ],
                "type": "object"
              },
              "name": "list_emails"
            },
            {
              "annotations": {
                "destructiveHint": false,
                "idempotentHint": true,
                "readOnlyHint": true,
                "title": "Read Email"
              },
              "description": "Get the full content of a specific email including body text, HTML, headers, and attachment metadata. To mark the email as read, use mark_email separately.",
              "inputSchema": {
                "properties": {
                  "email_id": {
                    "description": "The email ID to retrieve",
                    "type": "string"
                  },
                  "mailbox_id": {
                    "description": "The mailbox ID containing the email",
                    "type": "string"
                  }
                },
                "required": [
                  "mailbox_id",
                  "email_id"
                ],
                "type": "object"
              },
              "name": "get_email"
            },
            {
              "annotations": {
                "readOnlyHint": true,
                "title": "Search Emails"
              },
              "description": "Search emails across one or all accessible mailboxes using text search",
              "inputSchema": {
                "properties": {
                  "limit": {
                    "default": 20,
                    "description": "Maximum number of results (1-50)",
                    "type": "number"
                  },
                  "mailbox_id": {
                    "description": "Optional: limit search to a specific mailbox",
                    "type": "string"
                  },
                  "query": {
                    "description": "Search query to match against sender, subject, and snippet",
                    "type": "string"
                  }
                },
                "required": [
                  "query"
                ],
                "type": "object"
              },
              "name": "search_emails"
            },
            {
              "annotations": {
                "destructiveHint": false,
                "idempotentHint": true,
                "readOnlyHint": false,
                "title": "Mark Email"
              },
              "description": "Mark an email as read/unread or starred/unstarred",
              "inputSchema": {
                "properties": {
                  "email_id": {
                    "description": "The email ID to mark",
                    "type": "string"
                  },
                  "is_read": {
                    "description": "Set read status (true = read, false = unread)",
                    "type": "boolean"
                  },
                  "is_starred": {
                    "description": "Set starred status (true = starred, false = unstarred)",
                    "type": "boolean"
                  },
                  "mailbox_id": {
                    "description": "The mailbox ID containing the email",
                    "type": "string"
                  }
                },
                "required": [
                  "mailbox_id",
                  "email_id"
                ],
                "type": "object"
              },
              "name": "mark_email"
            },
            {
              "annotations": {
                "destructiveHint": false,
                "idempotentHint": true,
                "readOnlyHint": false,
                "title": "Move Email"
              },
              "description": "Move an email to a different folder",
              "inputSchema": {
                "properties": {
                  "email_id": {
                    "description": "The email ID to move",
                    "type": "string"
                  },
                  "folder": {
                    "description": "Target folder (inbox, spam, archive, trash, or custom folder name)",
                    "type": "string"
                  },
                  "mailbox_id": {
                    "description": "The mailbox ID containing the email",
                    "type": "string"
                  }
                },
                "required": [
                  "mailbox_id",
                  "email_id",
                  "folder"
                ],
                "type": "object"
              },
              "name": "move_email"
            },
            {
              "annotations": {
                "destructiveHint": true,
                "idempotentHint": false,
                "readOnlyHint": false,
                "title": "Delete Email"
              },
              "description": "Permanently delete an email. This action cannot be undone. Consider moving to trash first. Requires a two-step confirmation: first call returns a confirmation_token, second call with the token performs the deletion.",
              "inputSchema": {
                "properties": {
                  "confirmation_token": {
                    "description": "Confirmation token from the first call. Required to actually perform the deletion.",
                    "type": "string"
                  },
                  "email_id": {
                    "description": "The email ID to delete",
                    "type": "string"
                  },
                  "mailbox_id": {
                    "description": "The mailbox ID containing the email",
                    "type": "string"
                  }
                },
                "required": [
                  "mailbox_id",
                  "email_id"
                ],
                "type": "object"
              },
              "name": "delete_email"
            },
            {
              "annotations": {
                "readOnlyHint": true,
                "title": "List Folders"
              },
              "description": "List all folders in a mailbox including system folders and custom folders",
              "inputSchema": {
                "properties": {
                  "mailbox_id": {
                    "description": "The mailbox ID to list folders for",
                    "type": "string"
                  }
                },
                "required": [
                  "mailbox_id"
                ],
                "type": "object"
              },
              "name": "list_folders"
            },
            {
              "annotations": {
                "readOnlyHint": true,
                "title": "List Email Lists"
              },
              "description": "List all email contact lists for the user. Email lists help organize contacts for outreach campaigns and bulk operations. Requires a paid plan (Standard or Plus).",
              "inputSchema": {
                "properties": {},
                "type": "object"
              },
              "name": "list_email_lists"
            },
            {
              "annotations": {
                "readOnlyHint": true,
                "title": "Get Email List Contacts"
              },
              "description": "Get contacts from a specific email list. Returns contact details including email, name, company, and status. Only active contacts can receive emails.",
              "inputSchema": {
                "properties": {
                  "limit": {
                    "default": 50,
                    "description": "Maximum number of contacts to return (1-200)",
                    "type": "number"
                  },
                  "list_id": {
                    "description": "The email list ID to get contacts from",
                    "type": "string"
                  },
                  "offset": {
                    "default": 0,
                    "description": "Number of contacts to skip for pagination",
                    "type": "number"
                  },
                  "status": {
                    "description": "Filter by contact status (active, unsubscribed, bounced). Default: all statuses.",
                    "enum": [
                      "active",
                      "unsubscribed",
                      "bounced"
                    ],
                    "type": "string"
                  }
                },
                "required": [
                  "list_id"
                ],
                "type": "object"
              },
              "name": "get_email_list_contacts"
            },
            {
              "annotations": {
                "destructiveHint": false,
                "idempotentHint": false,
                "openWorldHint": true,
                "readOnlyHint": false,
                "title": "Compose New Email"
              },
              "description": "Compose and send a new email to one or more recipients. Requires a paid plan (Standard or Plus). Rate limits vary by plan (Standard: 30/hr, 200/day; Plus: 60/hr, 500/day).",
              "inputSchema": {
                "properties": {
                  "body_html": {
                    "description": "Optional HTML body. If not provided, body_text will be converted to HTML.",
                    "type": "string"
                  },
                  "body_text": {
                    "description": "Plain text body of the email",
                    "type": "string"
                  },
                  "mailbox_id": {
                    "description": "The mailbox ID to send from",
                    "type": "string"
                  },
                  "subject": {
                    "description": "Email subject line",
                    "type": "string"
                  },
                  "to_addresses": {
                    "description": "List of recipient email addresses",
                    "items": {
                      "type": "string"
                    },
                    "type": "array"
                  }
                },
                "required": [
                  "mailbox_id",
                  "to_addresses",
                  "subject",
                  "body_text"
                ],
                "type": "object"
              },
              "name": "compose_email"
            },
            {
              "annotations": {
                "destructiveHint": false,
                "idempotentHint": false,
                "openWorldHint": true,
                "readOnlyHint": false,
                "title": "Reply to Email"
              },
              "description": "Reply to an email. The reply will be sent from the mailbox's email address to the original sender. Rate limited per plan (Standard: 30/hr, Plus: 60/hr).",
              "inputSchema": {
                "properties": {
                  "body_html": {
                    "description": "Optional HTML body of the reply. If not provided, body_text will be used.",
                    "type": "string"
                  },
                  "body_text": {
                    "description": "Plain text body of the reply",
                    "type": "string"
                  },
                  "email_id": {
                    "description": "The email ID to reply to",
                    "type": "string"
                  },
                  "mailbox_id": {
                    "description": "The mailbox ID containing the email to reply to",
                    "type": "string"
                  }
                },
                "required": [
                  "mailbox_id",
                  "email_id",
                  "body_text"
                ],
                "type": "object"
              },
              "name": "reply_email"
            },
            {
              "annotations": {
                "destructiveHint": false,
                "idempotentHint": false,
                "openWorldHint": true,
                "readOnlyHint": false,
                "title": "Forward Email"
              },
              "description": "Forward an email to one or more recipients. The forward will be sent from the mailbox's email address. Rate limited per plan (Standard: 30/hr, Plus: 60/hr). Max recipients per plan (Standard: 5, Plus: 10).",
              "inputSchema": {
                "properties": {
                  "email_id": {
                    "description": "The email ID to forward",
                    "type": "string"
                  },
                  "mailbox_id": {
                    "description": "The mailbox ID containing the email to forward",
                    "type": "string"
                  },
                  "message": {
                    "description": "Optional message to include above the forwarded email",
                    "type": "string"
                  },
                  "to_addresses": {
                    "description": "List of email addresses to forward to (max 5)",
                    "items": {
                      "type": "string"
                    },
                    "type": "array"
                  }
                },
                "required": [
                  "mailbox_id",
                  "email_id",
                  "to_addresses"
                ],
                "type": "object"
              },
              "name": "forward_email"
            },
            {
              "annotations": {
                "readOnlyHint": true,
                "title": "List Email Templates"
              },
              "description": "List email templates available for composing emails. Templates contain pre-written subject and body content with optional variables like {{first_name}} that can be filled in.",
              "inputSchema": {
                "properties": {
                  "category": {
                    "description": "Optional: filter by category (general, outreach, followup, newsletter)",
                    "type": "string"
                  },
                  "mailbox_id": {
                    "description": "Optional: filter templates for a specific mailbox. If omitted, returns all templates.",
                    "type": "string"
                  }
                },
                "type": "object"
              },
              "name": "list_templates"
            },
            {
              "annotations": {
                "readOnlyHint": true,
                "title": "Get Email Template"
              },
              "description": "Get the full content of an email template including subject, body, and variables.",
              "inputSchema": {
                "properties": {
                  "template_id": {
                    "description": "The template ID to retrieve",
                    "type": "string"
                  }
                },
                "required": [
                  "template_id"
                ],
                "type": "object"
              },
              "name": "get_template"
            },
            {
              "annotations": {
                "destructiveHint": false,
                "idempotentHint": false,
                "readOnlyHint": false,
                "title": "Create Draft Email"
              },
              "description": "Create a draft email for the user to review and approve before sending. This is the preferred way for AI agents to compose emails - the user can review, edit, and approve drafts from the web dashboard. Drafts expire after 72 hours if not acted on. Rate limited per plan.",
              "inputSchema": {
                "properties": {
                  "body_html": {
                    "description": "Optional HTML body. If not provided, body_text will be converted to HTML.",
                    "type": "string"
                  },
                  "body_text": {
                    "description": "Plain text body of the email",
                    "type": "string"
                  },
                  "mailbox_id": {
                    "description": "The mailbox ID to create the draft for",
                    "type": "string"
                  },
                  "scheduled_at": {
                    "description": "Optional: ISO 8601 date to schedule the send for (e.g., \"2025-01-15T09:00:00Z\"). If set, the email will be sent at this time after approval.",
                    "type": "string"
                  },
                  "subject": {
                    "description": "Email subject line",
                    "type": "string"
                  },
                  "template_id": {
                    "description": "Optional: template ID to base the draft on",
                    "type": "string"
                  },
                  "to_addresses": {
                    "description": "List of recipient email addresses",
                    "items": {
                      "type": "string"
                    },
                    "type": "array"
                  }
                },
                "required": [
                  "mailbox_id",
                  "to_addresses",
                  "subject",
                  "body_text"
                ],
                "type": "object"
              },
              "name": "create_draft"
            },
            {
              "annotations": {
                "readOnlyHint": true,
                "title": "List Draft Emails"
              },
              "description": "List draft emails pending review. Shows drafts created by AI agents that the user can approve or reject.",
              "inputSchema": {
                "properties": {
                  "limit": {
                    "default": 20,
                    "description": "Maximum number of drafts to return (1-50)",
                    "type": "number"
                  },
                  "mailbox_id": {
                    "description": "The mailbox ID to list drafts for",
                    "type": "string"
                  },
                  "status": {
                    "description": "Filter by status: pending_review, approved, rejected, sent, expired",
                    "enum": [
                      "pending_review",
                      "approved",
                      "rejected",
                      "sent",
                      "expired"
                    ],
                    "type": "string"
                  }
                },
                "required": [
                  "mailbox_id"
                ],
                "type": "object"
              },
              "name": "list_drafts"
            },
            {
              "annotations": {
                "readOnlyHint": true,
                "title": "List Sent Emails"
              },
              "description": "List emails sent from a mailbox. Shows all sent emails whether sent by the user (web), AI agent (MCP), or API. Includes delivery status and sent_via source.",
              "inputSchema": {
                "properties": {
                  "limit": {
                    "default": 20,
                    "description": "Maximum number of emails to return (1-100)",
                    "type": "number"
                  },
                  "mailbox_id": {
                    "description": "The mailbox ID to list sent emails for",
                    "type": "string"
                  },
                  "offset": {
                    "default": 0,
                    "description": "Number of emails to skip for pagination",
                    "type": "number"
                  },
                  "sent_via": {
                    "description": "Optional: filter by how the email was sent",
                    "enum": [
                      "web",
                      "mcp",
                      "api"
                    ],
                    "type": "string"
                  }
                },
                "required": [
                  "mailbox_id"
                ],
                "type": "object"
              },
              "name": "list_sent_emails"
            },
            {
              "annotations": {
                "readOnlyHint": true,
                "title": "List Aliases"
              },
              "description": "List all @po6.com forwarding aliases owned by the user. Returns alias address, forwarding destination, subscription plan, active status, and plus addressing settings.",
              "inputSchema": {
                "properties": {
                  "active_only": {
                    "default": false,
                    "description": "Only return active aliases",
                    "type": "boolean"
                  }
                },
                "type": "object"
              },
              "name": "list_aliases"
            },
            {
              "annotations": {
                "readOnlyHint": true,
                "title": "Get Alias Details"
              },
              "description": "Get detailed information about a specific @po6.com alias including forwarding destination, verification status, subscription plan, plus addressing, and URL redirect settings.",
              "inputSchema": {
                "properties": {
                  "alias_id": {
                    "description": "The alias ID to retrieve",
                    "type": "string"
                  }
                },
                "required": [
                  "alias_id"
                ],
                "type": "object"
              },
              "name": "get_alias"
            },
            {
              "annotations": {
                "destructiveHint": false,
                "idempotentHint": true,
                "title": "Update Alias"
              },
              "description": "Update a @po6.com alias settings. Can change forwarding address (triggers re-verification), toggle active status, or configure plus addressing. Cannot create or delete aliases.",
              "inputSchema": {
                "properties": {
                  "alias_id": {
                    "description": "The alias ID to update",
                    "type": "string"
                  },
                  "forward_to": {
                    "description": "New forwarding email address (will require re-verification)",
                    "type": "string"
                  },
                  "is_active": {
                    "description": "Enable or disable the alias (requires active subscription)",
                    "type": "boolean"
                  },
                  "plus_addressing_enabled": {
                    "description": "Enable or disable plus addressing (e.g. alias+tag@po6.com)",
                    "type": "boolean"
                  },
                  "plus_tag_auto_label": {
                    "description": "Automatically label forwarded emails with the plus tag",
                    "type": "boolean"
                  }
                },
                "required": [
                  "alias_id"
                ],
                "type": "object"
              },
              "name": "update_alias"
            },
            {
              "annotations": {
                "readOnlyHint": true,
                "title": "List Domains"
              },
              "description": "List all custom (BYOD) domains owned by the user. Returns domain name, verification status, catchall config, alias count, and BYOD subscription plan with limits.",
              "inputSchema": {
                "properties": {},
                "type": "object"
              },
              "name": "list_domains"
            },
            {
              "annotations": {
                "readOnlyHint": true,
                "title": "Get Domain Details"
              },
              "description": "Get detailed information about a custom domain including verification status, MX records, catchall configuration, aliases, and BYOD plan limits.",
              "inputSchema": {
                "properties": {
                  "domain_id": {
                    "description": "The domain ID to retrieve",
                    "type": "string"
                  }
                },
                "required": [
                  "domain_id"
                ],
                "type": "object"
              },
              "name": "get_domain"
            },
            {
              "annotations": {
                "destructiveHint": false,
                "idempotentHint": true,
                "title": "Update Domain Alias"
              },
              "description": "Update a domain alias settings. Can change forwarding address (triggers re-verification), toggle active status (subject to plan limits), or configure plus addressing.",
              "inputSchema": {
                "properties": {
                  "alias_id": {
                    "description": "The domain alias ID to update",
                    "type": "string"
                  },
                  "domain_id": {
                    "description": "The domain ID containing the alias",
                    "type": "string"
                  },
                  "forward_to": {
                    "description": "New forwarding email address (will require re-verification)",
                    "type": "string"
                  },
                  "is_active": {
                    "description": "Enable or disable the alias (subject to plan active alias limit)",
                    "type": "boolean"
                  },
                  "plus_addressing_enabled": {
                    "description": "Enable or disable plus addressing",
                    "type": "boolean"
                  },
                  "plus_tag_auto_label": {
                    "description": "Automatically label forwarded emails with the plus tag",
                    "type": "boolean"
                  }
                },
                "required": [
                  "domain_id",
                  "alias_id"
                ],
                "type": "object"
              },
              "name": "update_domain_alias"
            },
            {
              "annotations": {
                "destructiveHint": false,
                "idempotentHint": true,
                "title": "Update Catchall"
              },
              "description": "Enable, disable, or update the catchall configuration for a custom domain. Catchall forwards all unmatched emails to a specified address. Changing the forward address requires re-verification.",
              "inputSchema": {
                "properties": {
                  "domain_id": {
                    "description": "The domain ID to configure catchall for",
                    "type": "string"
                  },
                  "enabled": {
                    "description": "Enable or disable catchall",
                    "type": "boolean"
                  },
                  "forward_to": {
                    "description": "Email address to forward catchall emails to (required when enabling)",
                    "type": "string"
                  }
                },
                "required": [
                  "domain_id"
                ],
                "type": "object"
              },
              "name": "update_catchall"
            },
            {
              "annotations": {
                "readOnlyHint": true,
                "title": "List Landing Page Templates"
              },
              "description": "List available landing page templates. Returns template summaries including name, category, and preview information.",
              "inputSchema": {
                "properties": {
                  "category": {
                    "description": "Optional: filter templates by category",
                    "type": "string"
                  }
                },
                "type": "object"
              },
              "name": "list_landing_page_templates"
            },
            {
              "annotations": {
                "readOnlyHint": true,
                "title": "Get Landing Page Template"
              },
              "description": "Get full details of a landing page template by ID, including widget configuration and default content.",
              "inputSchema": {
                "properties": {
                  "template_id": {
                    "description": "The template ID to retrieve",
                    "type": "string"
                  }
                },
                "required": [
                  "template_id"
                ],
                "type": "object"
              },
              "name": "get_landing_page_template"
            },
            {
              "annotations": {
                "readOnlyHint": true,
                "title": "List Landing Pages"
              },
              "description": "List the user's landing pages with optional filtering by status. Returns page summaries including title, status, URL, and last modified date.",
              "inputSchema": {
                "properties": {
                  "limit": {
                    "default": 20,
                    "description": "Maximum number of landing pages to return (1-100)",
                    "type": "number"
                  },
                  "offset": {
                    "default": 0,
                    "description": "Number of landing pages to skip for pagination",
                    "type": "number"
                  },
                  "status": {
                    "description": "Filter by landing page status",
                    "enum": [
                      "draft",
                      "published",
                      "archived"
                    ],
                    "type": "string"
                  }
                },
                "type": "object"
              },
              "name": "list_landing_pages"
            },
            {
              "annotations": {
                "readOnlyHint": true,
                "title": "Get Landing Page"
              },
              "description": "Get a landing page's full details including widget configuration, SEO settings, linked alias/domain, and publication status.",
              "inputSchema": {
                "properties": {
                  "page_id": {
                    "description": "The landing page ID to retrieve",
                    "type": "string"
                  }
                },
                "required": [
                  "page_id"
                ],
                "type": "object"
              },
              "name": "get_landing_page"
            },
            {
              "annotations": {
                "readOnlyHint": true,
                "title": "Get Landing Page Stats"
              },
              "description": "Get analytics and statistics for a landing page including page views, unique visitors, and lead conversion metrics.",
              "inputSchema": {
                "properties": {
                  "days": {
                    "default": 30,
                    "description": "Number of days of stats to retrieve",
                    "type": "number"
                  },
                  "page_id": {
                    "description": "The landing page ID to get stats for",
                    "type": "string"
                  }
                },
                "required": [
                  "page_id"
                ],
                "type": "object"
              },
              "name": "get_landing_page_stats"
            },
            {
              "annotations": {
                "readOnlyHint": true,
                "title": "List Landing Page Leads"
              },
              "description": "List leads/form submissions captured by landing pages. Returns lead details including email, name, submission date, and source page.",
              "inputSchema": {
                "properties": {
                  "limit": {
                    "default": 20,
                    "description": "Maximum number of leads to return (1-100)",
                    "type": "number"
                  },
                  "offset": {
                    "default": 0,
                    "description": "Number of leads to skip for pagination",
                    "type": "number"
                  },
                  "page_id": {
                    "description": "Optional: filter leads to a specific landing page",
                    "type": "string"
                  }
                },
                "type": "object"
              },
              "name": "list_landing_page_leads"
            },
            {
              "annotations": {
                "destructiveHint": false,
                "idempotentHint": false,
                "readOnlyHint": false,
                "title": "Create Landing Page"
              },
              "description": "Create a new landing page from a template. The page is created in draft status. Optionally link it to a po6 alias or BYOD domain alias for URL routing.",
              "inputSchema": {
                "properties": {
                  "alias_id": {
                    "description": "Optional: po6 alias ID to link this landing page to",
                    "type": "string"
                  },
                  "domain_alias_id": {
                    "description": "Optional: BYOD domain alias ID to link this landing page to",
                    "type": "string"
                  },
                  "domain_id": {
                    "description": "Optional: BYOD domain ID (required when using domain_alias_id)",
                    "type": "string"
                  },
                  "template_id": {
                    "description": "The template ID to create the landing page from",
                    "type": "string"
                  },
                  "title": {
                    "description": "Optional title for the landing page",
                    "type": "string"
                  }
                },
                "required": [
                  "template_id"
                ],
                "type": "object"
              },
              "name": "create_landing_page"
            },
            {
              "annotations": {
                "destructiveHint": false,
                "idempotentHint": true,
                "readOnlyHint": false,
                "title": "Update Landing Page"
              },
              "description": "Update a landing page's configuration, title, or SEO settings. Pass the full widget config JSON to update the page layout and content.",
              "inputSchema": {
                "properties": {
                  "config": {
                    "description": "JSON string of the widget configuration for the page layout and content",
                    "type": "string"
                  },
                  "favicon_url": {
                    "description": "Custom favicon URL for the page",
                    "type": "string"
                  },
                  "lead_notify_email": {
                    "description": "Email address to send lead notifications to",
                    "type": "string"
                  },
                  "meta_description": {
                    "description": "SEO meta description for the page",
                    "type": "string"
                  },
                  "meta_title": {
                    "description": "SEO meta title for the page",
                    "type": "string"
                  },
                  "notify_on_lead": {
                    "description": "Whether to send email notifications when a new lead is captured",
                    "type": "boolean"
                  },
                  "og_image_url": {
                    "description": "Open Graph image URL for social media sharing",
                    "type": "string"
                  },
                  "page_id": {
                    "description": "The landing page ID to update",
                    "type": "string"
                  },
                  "title": {
                    "description": "New title for the landing page",
                    "type": "string"
                  }
                },
                "required": [
                  "page_id"
                ],
                "type": "object"
              },
              "name": "update_landing_page"
            },
            {
              "annotations": {
                "destructiveHint": false,
                "idempotentHint": false,
                "openWorldHint": true,
                "readOnlyHint": false,
                "title": "Publish Landing Page"
              },
              "description": "Publish a landing page, making it publicly accessible at its URL. Requires a two-step confirmation: first call returns a confirmation_token, second call with the token performs the publish.",
              "inputSchema": {
                "properties": {
                  "confirmation_token": {
                    "description": "Confirmation token from the first call. Required to actually perform the publish.",
                    "type": "string"
                  },
                  "page_id": {
                    "description": "The landing page ID to publish",
                    "type": "string"
                  }
                },
                "required": [
                  "page_id"
                ],
                "type": "object"
              },
              "name": "publish_landing_page"
            },
            {
              "annotations": {
                "destructiveHint": true,
                "idempotentHint": false,
                "readOnlyHint": false,
                "title": "Unpublish Landing Page"
              },
              "description": "Unpublish a landing page, removing it from public access. The page returns to draft status. Requires a two-step confirmation: first call returns a confirmation_token, second call with the token performs the unpublish.",
              "inputSchema": {
                "properties": {
                  "confirmation_token": {
                    "description": "Confirmation token from the first call. Required to actually perform the unpublish.",
                    "type": "string"
                  },
                  "page_id": {
                    "description": "The landing page ID to unpublish",
                    "type": "string"
                  }
                },
                "required": [
                  "page_id"
                ],
                "type": "object"
              },
              "name": "unpublish_landing_page"
            },
            {
              "annotations": {
                "destructiveHint": false,
                "idempotentHint": false,
                "openWorldHint": true,
                "readOnlyHint": false,
                "title": "Assign Landing Page Domain"
              },
              "description": "Assign a custom domain to a landing page so it can be accessed via that domain. Requires a two-step confirmation: first call returns a confirmation_token, second call with the token performs the assignment.",
              "inputSchema": {
                "properties": {
                  "confirmation_token": {
                    "description": "Confirmation token from the first call. Required to actually perform the domain assignment.",
                    "type": "string"
                  },
                  "domain": {
                    "description": "The custom domain to assign (e.g., \"landing.example.com\")",
                    "type": "string"
                  },
                  "page_id": {
                    "description": "The landing page ID to assign the domain to",
                    "type": "string"
                  }
                },
                "required": [
                  "page_id",
                  "domain"
                ],
                "type": "object"
              },
              "name": "assign_landing_page_domain"
            },
            {
              "annotations": {
                "destructiveHint": true,
                "idempotentHint": false,
                "readOnlyHint": false,
                "title": "Archive Landing Page"
              },
              "description": "Archive (soft-delete) a landing page. If the page is published, it will be unpublished first. Requires a two-step confirmation: first call returns a confirmation_token, second call with the token performs the archive.",
              "inputSchema": {
                "properties": {
                  "confirmation_token": {
                    "description": "Confirmation token from the first call. Required to actually perform the archive.",
                    "type": "string"
                  },
                  "page_id": {
                    "description": "The landing page ID to archive",
                    "type": "string"
                  }
                },
                "required": [
                  "page_id"
                ],
                "type": "object"
              },
              "name": "archive_landing_page"
            },
            {
              "annotations": {
                "readOnlyHint": true,
                "title": "Download Landing Page"
              },
              "description": "Download a published landing page as a standalone HTML file. Returns the full HTML content of the page. The page must be published.",
              "inputSchema": {
                "properties": {
                  "page_id": {
                    "description": "The landing page ID to download",
                    "type": "string"
                  }
                },
                "required": [
                  "page_id"
                ],
                "type": "object"
              },
              "name": "download_landing_page"
            }
          ]
        }
      },
      "bad_protocol_status_code": 200,
      "delete_error": null,
      "delete_status_code": 405,
      "expired_session_error": null,
      "expired_session_status_code": 200,
      "issues": [
        "missing_protocol_header",
        "bad_protocol_not_rejected",
        "delete_session_unexpected",
        "expired_session_not_404"
      ],
      "last_event_id_visible": false,
      "protocol_header_present": false,
      "requested_protocol_version": "2025-03-26",
      "session_id_present": true,
      "transport": "streamable-http"
    }
  },
  "remote_url": "https://mcp.po6.com",
  "server_card_payload": null,
  "server_identifier": "com.po6/mailbox"
}

Known versions

1.0.0

Validation history

7 day score delta

+0.0

30 day score delta

+0.0

Recent healthy ratio

100%

Freshness

602.2h

Timestamp	Status	Score	Latency	Tools
Apr 09, 2026 12:56:37 AM UTC	Healthy	77.1	1514.9 ms	39
Apr 08, 2026 12:52:33 AM UTC	Healthy	77.1	1372.4 ms	39
Apr 07, 2026 12:48:35 AM UTC	Healthy	77.1	1485.2 ms	39
Apr 06, 2026 12:45:18 AM UTC	Healthy	77.1	1158.9 ms	39
Apr 05, 2026 12:43:04 AM UTC	Healthy	77.1	1180.3 ms	39
Apr 04, 2026 12:41:04 AM UTC	Healthy	77.1	1124.5 ms	39
Apr 03, 2026 12:36:19 AM UTC	Healthy	77.1	1374.3 ms	39
Apr 02, 2026 12:23:21 AM UTC	Healthy	77.1	1490.4 ms	39

Validation timeline

Validated	Summary	Score	Protocol	Auth mode	Tools	High-risk tools	Changes
Apr 09, 2026 12:56:37 AM UTC	Healthy	77.1	2025-03-26	oauth_supported	39	7	none
Apr 08, 2026 12:52:33 AM UTC	Healthy	77.1	2025-03-26	oauth_supported	39	7	none
Apr 07, 2026 12:48:35 AM UTC	Healthy	77.1	2025-03-26	oauth_supported	39	7	none
Apr 06, 2026 12:45:18 AM UTC	Healthy	77.1	2025-03-26	oauth_supported	39	7	none
Apr 05, 2026 12:43:04 AM UTC	Healthy	77.1	2025-03-26	oauth_supported	39	7	none
Apr 04, 2026 12:41:04 AM UTC	Healthy	77.1	2025-03-26	oauth_supported	39	7	none
Apr 03, 2026 12:36:19 AM UTC	Healthy	77.1	2025-03-26	oauth_supported	39	7	none
Apr 02, 2026 12:23:21 AM UTC	Healthy	77.1	2025-03-26	oauth_supported	39	7	none
Mar 31, 2026 11:55:31 PM UTC	Healthy	77.1	2025-03-26	oauth_supported	39	7	none
Mar 30, 2026 11:49:05 PM UTC	Healthy	77.1	2025-03-26	oauth_supported	39	7	none
Mar 29, 2026 11:25:44 PM UTC	Healthy	77.1	2025-03-26	oauth_supported	39	7	none
Mar 28, 2026 10:06:40 PM UTC	Healthy	77.1	2025-03-26	oauth_supported	39	7	none

Recent validation runs

Started	Status	Summary	Latency	Checks
Apr 09, 2026 12:56:36 AM UTC	Completed	Healthy	1514.9 ms	action_safety_probe, advanced_capabilities_probe, connector_publishability_probe, connector_replay_probe, determinism_probe, initialize, interactive_flow_probe, oauth_authorization_server, oauth_protected_resource, official_registry_probe, openid_configuration, probe_noise_resilience, prompt_get, prompts_list, protocol_version_probe, provenance_divergence_probe, request_association_probe, resource_read, resources_list, server_card, session_resume_probe, step_up_auth_probe, tool_snapshot_probe, tools_list, transport_compliance_probe, utility_coverage_probe
Apr 08, 2026 12:52:31 AM UTC	Completed	Healthy	1372.4 ms	action_safety_probe, advanced_capabilities_probe, connector_publishability_probe, connector_replay_probe, determinism_probe, initialize, interactive_flow_probe, oauth_authorization_server, oauth_protected_resource, official_registry_probe, openid_configuration, probe_noise_resilience, prompt_get, prompts_list, protocol_version_probe, provenance_divergence_probe, request_association_probe, resource_read, resources_list, server_card, session_resume_probe, step_up_auth_probe, tool_snapshot_probe, tools_list, transport_compliance_probe, utility_coverage_probe
Apr 07, 2026 12:48:33 AM UTC	Completed	Healthy	1485.2 ms	action_safety_probe, advanced_capabilities_probe, connector_publishability_probe, connector_replay_probe, determinism_probe, initialize, interactive_flow_probe, oauth_authorization_server, oauth_protected_resource, official_registry_probe, openid_configuration, probe_noise_resilience, prompt_get, prompts_list, protocol_version_probe, provenance_divergence_probe, request_association_probe, resource_read, resources_list, server_card, session_resume_probe, step_up_auth_probe, tool_snapshot_probe, tools_list, transport_compliance_probe, utility_coverage_probe
Apr 06, 2026 12:45:17 AM UTC	Completed	Healthy	1158.9 ms	action_safety_probe, advanced_capabilities_probe, connector_publishability_probe, connector_replay_probe, determinism_probe, initialize, interactive_flow_probe, oauth_authorization_server, oauth_protected_resource, official_registry_probe, openid_configuration, probe_noise_resilience, prompt_get, prompts_list, protocol_version_probe, provenance_divergence_probe, request_association_probe, resource_read, resources_list, server_card, session_resume_probe, step_up_auth_probe, tool_snapshot_probe, tools_list, transport_compliance_probe, utility_coverage_probe
Apr 05, 2026 12:43:03 AM UTC	Completed	Healthy	1180.3 ms	action_safety_probe, advanced_capabilities_probe, connector_publishability_probe, connector_replay_probe, determinism_probe, initialize, interactive_flow_probe, oauth_authorization_server, oauth_protected_resource, official_registry_probe, openid_configuration, probe_noise_resilience, prompt_get, prompts_list, protocol_version_probe, provenance_divergence_probe, request_association_probe, resource_read, resources_list, server_card, session_resume_probe, step_up_auth_probe, tool_snapshot_probe, tools_list, transport_compliance_probe, utility_coverage_probe
Apr 04, 2026 12:41:03 AM UTC	Completed	Healthy	1124.5 ms	action_safety_probe, advanced_capabilities_probe, connector_publishability_probe, connector_replay_probe, determinism_probe, initialize, interactive_flow_probe, oauth_authorization_server, oauth_protected_resource, official_registry_probe, openid_configuration, probe_noise_resilience, prompt_get, prompts_list, protocol_version_probe, provenance_divergence_probe, request_association_probe, resource_read, resources_list, server_card, session_resume_probe, step_up_auth_probe, tool_snapshot_probe, tools_list, transport_compliance_probe, utility_coverage_probe
Apr 03, 2026 12:36:18 AM UTC	Completed	Healthy	1374.3 ms	action_safety_probe, advanced_capabilities_probe, connector_publishability_probe, connector_replay_probe, determinism_probe, initialize, interactive_flow_probe, oauth_authorization_server, oauth_protected_resource, official_registry_probe, openid_configuration, probe_noise_resilience, prompt_get, prompts_list, protocol_version_probe, provenance_divergence_probe, request_association_probe, resource_read, resources_list, server_card, session_resume_probe, step_up_auth_probe, tool_snapshot_probe, tools_list, transport_compliance_probe, utility_coverage_probe
Apr 02, 2026 12:23:19 AM UTC	Completed	Healthy	1490.4 ms	action_safety_probe, advanced_capabilities_probe, connector_publishability_probe, connector_replay_probe, determinism_probe, initialize, interactive_flow_probe, oauth_authorization_server, oauth_protected_resource, official_registry_probe, openid_configuration, probe_noise_resilience, prompt_get, prompts_list, protocol_version_probe, provenance_divergence_probe, request_association_probe, resource_read, resources_list, server_card, session_resume_probe, step_up_auth_probe, tool_snapshot_probe, tools_list, transport_compliance_probe, utility_coverage_probe
Mar 31, 2026 11:55:30 PM UTC	Completed	Healthy	1820.1 ms	action_safety_probe, advanced_capabilities_probe, connector_publishability_probe, connector_replay_probe, determinism_probe, initialize, interactive_flow_probe, oauth_authorization_server, oauth_protected_resource, official_registry_probe, openid_configuration, probe_noise_resilience, prompt_get, prompts_list, protocol_version_probe, provenance_divergence_probe, request_association_probe, resource_read, resources_list, server_card, session_resume_probe, step_up_auth_probe, tool_snapshot_probe, tools_list, transport_compliance_probe, utility_coverage_probe
Mar 30, 2026 11:49:04 PM UTC	Completed	Healthy	1344.3 ms	action_safety_probe, advanced_capabilities_probe, connector_publishability_probe, connector_replay_probe, determinism_probe, initialize, interactive_flow_probe, oauth_authorization_server, oauth_protected_resource, official_registry_probe, openid_configuration, probe_noise_resilience, prompt_get, prompts_list, protocol_version_probe, provenance_divergence_probe, request_association_probe, resource_read, resources_list, server_card, session_resume_probe, step_up_auth_probe, tool_snapshot_probe, tools_list, transport_compliance_probe, utility_coverage_probe