ai.foura/mcp
Reliable web access for AI agents: smart HTTP, rotating proxies, and full-browser rendering.
Allow With Approval
trustsnap_5e3f21ec74da2a62.- Utility Coverage
- Recovery Semantics
- Advanced Capability Coverage
- Add an explicit confirm/dry-run parameter or two-step confirmation flow to write, delete, exec, and egress-capable tool…
- Align MCP-Protocol-Version, MCP-Session-Id, DELETE teardown, and expired-session handling with the transport spec.
- Only send roots/list, sampling/createMessage, or elicitation/create requests while handling an active client-initiated…
- No segmented attention signals observed in the current window.
Dispute this assessment
If any published claim about this server -- its score, a risk flag, a capability classification, or its taxonomy -- is factually wrong, tell us what evidence shows and we will review it. This does not require claiming or verifying ownership of the server first.
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Dispute history
No disputes filed for this server.
Risk
Security posture
Tool capability & risk inventory
| Tool | Capabilities | Risk | Findings | Notes |
|---|---|---|---|---|
foura_single |
read | Low | none | No explicit safeguard hints detected. |
foura_proxy |
read | Low | none | Safeguards hinted in metadata. |
foura_browser |
read | Low | none | No explicit safeguard hints detected. |
foura_auto |
read | Low | none | Safeguards hinted in metadata. |
Write-action governance
Status detail: No high-risk write actions are exposed without a clear auth boundary; 2 safeguard(s) and 0 confirmation signal(s) detected.
| Tool | Risk | Flags | Safeguards |
|---|---|---|---|
| No high-risk tools were detected on the latest run. | |||
Action-controls diff
New actions
| Action | Risk | Flags |
|---|---|---|
foura_auto | Low | none |
foura_browser | Low | none |
foura_proxy | Low | none |
foura_single | Low | none |
Changed actions
| Action | Change types | Risk |
|---|---|---|
| No materially changed actions. | ||
Critical alerts
Compatibility
Client compatibility verdicts
Client compatibility only means the server shape can work with a client. Production trust decision and write-action publishing are evaluated separately so a client-compatible server can still be blocked for production.
Evidence provenance
initialize• OKtools_list• OKtransport_compliance_probe• Warningstep_up_auth_probe• Missingconnector_replay_probe• OK — Frozen tool snapshots must survive refresh.request_association_probe• Missing — Roots, sampling, and elicitation should stay request-scoped.
Evidence provenance
initialize• OKtools_list• OKtransport_compliance_probe• Warning
Evidence provenance
action_safety_probe• Error
Evidence provenance
tool_snapshot_probe• OKconnector_replay_probe• OK
Client compatibility gate details
Remediation checklist
OpenAI connectors expect OAuth for remote server auth.Dynamic client registration materially improves connector setup.OAuth is not configured, so this client cannot authenticate without additional setup.Not yet safe for the Messages API remote MCP path: requires OAuth, a compatible connector profile, and no pending connector-refresh risk.Transport compliance issues should be resolved before wider client rollout.
Remediation checklist
OAuth is not configured, so this client cannot authenticate without additional setup.Not yet safe for the Messages API remote MCP path: requires OAuth, a compatible connector profile, and no pending connector-refresh risk.Transport compliance issues should be resolved before wider client rollout.
Remediation checklist
Add a clearer auth boundary around risky write actions.Add confirmation or dry-run semantics for risky actions.
Verdict traces
tool_snapshot_changed• high • Tool snapshot changedauth_mode_changed• high • Auth mode changedwrite_action_surface_expanded• high • Write-action surface expanded
Client verdict trace table
| Verdict | Status | Checks | Winning source | Conflicts |
|---|---|---|---|---|
openai_connectors |
Partially client-compatible | initialize, tools_list, transport_compliance_probe, step_up_auth_probe, connector_replay_probe, request_association_probe | live_validation | none |
claude_desktop |
Client-compatible | initialize, tools_list, transport_compliance_probe | live_validation | none |
unsafe_for_write_actions |
Publishing blocked | action_safety_probe | live_validation | none |
snapshot_churn_risk |
Medium | tool_snapshot_probe, connector_replay_probe | history | none |
Publishability policy profiles
- Search Fetch Only: Yes
- Write Actions Present: No
- Oauth Configured: No
- Admin Refresh Required: No
- Safe For Company Knowledge: Yes
- Safe For Messages Api Remote Mcp: No
- Search Fetch Only: Yes
- Write Actions Present: No
- Oauth Configured: No
- Admin Refresh Required: No
- Safe For Company Knowledge: Yes
- Safe For Messages Api Remote Mcp: No
Compatibility fixtures
- remote_http_endpoint: Passes
- oauth_discovery: Degraded
- frozen_tool_snapshot_refresh: Passes
- request_association: Passes
- remote_transport: Passes
- tool_discovery: Passes
- auth_connect: Passes
- safe_write_review: Degraded
Recommended for
Evidence
Current trust snapshot
trustsnap_5e3f21ec74da2a62Canonical machine links
Evidence confidence
Latest validation evidence
Failures
oauth_authorization_serverno authorization serveroauth_protected_resourceClient error '404 Not Found' for url 'https://mcp.foura.ai/.well-known/oauth-protected-resource' For more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/404openid_configurationno authorization serverprompt_getJSON-RPC error -32602: MCP error -32602: Invalid arguments for prompt scrape_product_page: [ { "expected": "string", "code": "invalid_type", "path": [ "url" ], "message": "Invalid input: expected string, received undefined" } ]server_cardClient error '404 Not Found' for url 'https://mcp.foura.ai/.well-known/mcp/server-card.json' For more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/404
Checks
| Check | Status | Latency | Evidence |
|---|---|---|---|
action_safety_probe |
Error | n/a | 3 high-risk, 1 destructive, 2 exec-capable tool(s); no clear auth boundary; safeguards=2; confirmation=none. |
advanced_capabilities_probe |
Warning | n/a | Only 3 capability signal(s): prompts, resources, structured outputs. |
connector_publishability_probe |
Warning | n/a | Publishability blockers: action safety, server card. |
connector_replay_probe |
OK | n/a | Backward compatible with no breaking tool-surface changes. |
determinism_probe |
OK | 289.1 ms | Check completed |
initialize |
OK | 290.6 ms | Protocol 2025-03-26 |
interactive_flow_probe |
OK | n/a | Check completed |
oauth_authorization_server |
Missing | n/a | no authorization server |
oauth_protected_resource |
Error | 440.3 ms | Client error '404 Not Found' for url 'https://mcp.foura.ai/.well-known/oauth-protected-resource' For more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/404 |
official_registry_probe |
OK | n/a | Check completed |
openid_configuration |
Missing | n/a | no authorization server |
probe_noise_resilience |
OK | 285.2 ms | Fetched https://mcp.foura.ai/robots.txt |
prompt_get |
Error | 288.1 ms | JSON-RPC error -32602: MCP error -32602: Invalid arguments for prompt scrape_product_page: [ { "expected": "string", "code": "invalid_type", "path": [ "url" ], "message": "Invalid input: expected string, received undefined" } ] |
prompts_list |
OK | 289.2 ms | 6 prompt(s) exposed |
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 |
OK | 291.1 ms | 0 resource item(s) exposed |
server_card |
Error | 417.4 ms | Client error '404 Not Found' for url 'https://mcp.foura.ai/.well-known/mcp/server-card.json' For more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/404 |
session_resume_probe |
Warning | n/a | no session id |
step_up_auth_probe |
Missing | n/a | No OAuth or incremental-scope signals detected. |
tool_snapshot_probe |
OK | n/a | Check completed |
tools_list |
OK | 389.7 ms | 4 tool(s) exposed |
transport_compliance_probe |
Warning | 291.5 ms | Issues: missing session id, missing protocol header (bad protocol=400). |
utility_coverage_probe |
Missing | 97.7 ms | No completions evidence; no pagination evidence; tasks missing. |
Raw evidence view
Show raw JSON evidence
{
"checks": {
"action_safety_probe": {
"details": {
"auth_present": false,
"confirmation_signals": [],
"safeguard_count": 2,
"summary": {
"bulk_access_tools": 0,
"capability_distribution": {
"admin": 4,
"delete": 1,
"exec": 2,
"network": 4,
"read": 4,
"secrets": 2,
"write": 4
},
"destructive_tools": 1,
"egress_tools": 4,
"exec_tools": 2,
"high_risk_tools": 3,
"risk_distribution": {
"critical": 2,
"high": 1,
"low": 0,
"medium": 1
},
"secret_tools": 2,
"tool_count": 4
}
},
"latency_ms": null,
"status": "error"
},
"advanced_capabilities_probe": {
"details": {
"capabilities": {
"completions": false,
"elicitation": false,
"prompts": true,
"resource_links": false,
"resources": true,
"roots": false,
"sampling": false,
"structured_outputs": true
},
"enabled": [
"prompts",
"resources",
"structured_outputs"
],
"enabled_count": 3,
"initialize_capability_keys": [
"prompts",
"resources",
"tools"
]
},
"latency_ms": null,
"status": "warning"
},
"connector_publishability_probe": {
"details": {
"blockers": [
"action_safety",
"server_card"
],
"criteria": {
"action_safety": false,
"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": true
},
"high_risk_tools": 3,
"tool_count": 4,
"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": "4065461dea3c8b72e68b3d23c61b50201b3ec53b5b51ee0b821b771d35abfed0",
"errors": [],
"matches": 2,
"stable_ratio": 1.0,
"successful": 2
},
"latency_ms": 289.06,
"status": "ok"
},
"initialize": {
"details": {
"headers": {
"content-type": "text/event-stream",
"strict-transport-security": "max-age=31536000; includeSubDomains; preload"
},
"http_status": 200,
"payload": {
"id": 1,
"jsonrpc": "2.0",
"result": {
"capabilities": {
"prompts": {
"listChanged": true
},
"resources": {
"listChanged": true
},
"tools": {
"listChanged": true
}
},
"protocolVersion": "2025-03-26",
"serverInfo": {
"description": "Reliable web access for AI agents: smart HTTP, rotating proxies, and full-browser rendering.",
"icons": [
{
"mimeType": "image/png",
"sizes": [
"512x512"
],
"src": "https://foura.ai/logo/avatars/4a-transparent-indigo-512.png"
}
],
"name": "foura-mcp",
"title": "FourA",
"version": "0.5.0",
"websiteUrl": "https://foura.ai/mcp"
}
}
},
"url": "https://mcp.foura.ai/mcp"
},
"latency_ms": 290.59,
"status": "ok"
},
"interactive_flow_probe": {
"details": {
"oauth_supported": false,
"prompt_available": false,
"risk_hits": [],
"safe_hits": [
"browser"
]
},
"latency_ms": null,
"status": "ok"
},
"oauth_authorization_server": {
"details": {
"reason": "no_authorization_server"
},
"latency_ms": null,
"status": "missing"
},
"oauth_protected_resource": {
"details": {
"error": "Client error '404 Not Found' for url 'https://mcp.foura.ai/.well-known/oauth-protected-resource'\nFor more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/404",
"url": "https://mcp.foura.ai/.well-known/oauth-protected-resource"
},
"latency_ms": 440.3,
"status": "error"
},
"official_registry_probe": {
"details": {
"direct_match": true,
"official_peer_count": 1,
"registry_identifier": "ai.foura/mcp",
"registry_source": "official_registry"
},
"latency_ms": null,
"status": "ok"
},
"openid_configuration": {
"details": {
"reason": "no_authorization_server"
},
"latency_ms": null,
"status": "missing"
},
"probe_noise_resilience": {
"details": {
"headers": {
"content-type": "text/plain",
"strict-transport-security": "max-age=31536000; includeSubDomains; preload"
},
"http_status": 404,
"url": "https://mcp.foura.ai/robots.txt"
},
"latency_ms": 285.19,
"status": "ok"
},
"prompt_get": {
"details": {
"headers": {
"content-type": "text/event-stream",
"strict-transport-security": "max-age=31536000; includeSubDomains; preload"
},
"http_status": 200,
"payload": {
"error": {
"code": -32602,
"message": "MCP error -32602: Invalid arguments for prompt scrape_product_page: [\n {\n \"expected\": \"string\",\n \"code\": \"invalid_type\",\n \"path\": [\n \"url\"\n ],\n \"message\": \"Invalid input: expected string, received undefined\"\n }\n]"
},
"id": 4,
"jsonrpc": "2.0"
},
"prompt_arguments": [
{
"description": "Product page URL (any e-commerce site)",
"name": "url",
"required": true
}
],
"prompt_name": "scrape_product_page",
"url": "https://mcp.foura.ai/mcp"
},
"latency_ms": 288.1,
"status": "error"
},
"prompts_list": {
"details": {
"headers": {
"content-type": "text/event-stream",
"strict-transport-security": "max-age=31536000; includeSubDomains; preload"
},
"http_status": 200,
"payload": {
"id": 3,
"jsonrpc": "2.0",
"result": {
"prompts": [
{
"arguments": [
{
"description": "Product page URL (any e-commerce site)",
"name": "url",
"required": true
}
],
"description": "Fetch an e-commerce product URL and extract structured product info as JSON (title, price, image, availability).",
"name": "scrape_product_page",
"title": "Scrape a product page"
},
{
"arguments": [
{
"description": "Article URL",
"name": "url",
"required": true
}
],
"description": "Fetch a news/blog article URL and extract the main content (headline, author, body, date) stripped of nav/ads/footer.",
"name": "extract_article",
"title": "Extract an article"
},
{
"arguments": [
{
"description": "Pricing or product page URL",
"name": "url",
"required": true
},
{
"description": "Optional target price to compare against (e.g. \"19.99\")",
"name": "target_price",
"required": false
}
],
"description": "Fetch a pricing page and extract the current price; compare to a target if provided.",
"name": "monitor_pricing",
"title": "Monitor a price"
},
{
"arguments": [
{
"description": "HTTP endpoint URL to probe",
"name": "url",
"required": true
},
{
"description": "Optional substring that must appear in the response body for the endpoint to count as healthy",
"name": "expected_text",
"required": false
}
],
"description": "GET a URL through foura_single with strict validation and report whether it's reachable and responding correctly.",
"name": "check_endpoint_health",
"title": "Check API endpoint health"
},
{
"arguments": [
{
"description": "Comma-separated list of URLs to fetch",
"name": "urls",
"required": true
}
],
"description": "Fetch multiple URLs concurrently and return each outcome. Retry blocked URLs through foura_proxy.",
"name": "bulk_fetch_urls",
"title": "Fetch a list of URLs in parallel"
},
{
"arguments": [
{
"description": "URL to fetch",
"name": "url",
"required": true
},
{
"description": "Optional substring the real page must contain - lets auto tell a real page from a challenge page on protected targets.",
"name": "must_contain",
"required": false
},
{
"description": "Optional plain-English description of what to pull out of the page (e.g. \"title, price, image\").",
"name": "extract",
"required": false
}
],
"description": "Fetch any URL with foura_auto - one call that picks the method (direct / proxy / browser), gets past common bot protection, and returns the content. Use when you just want the page and don't want to choose a tool.",
"name": "smart_fetch",
"title": "Fetch a URL the smart way (auto)"
}
]
}
},
"url": "https://mcp.foura.ai/mcp"
},
"latency_ms": 289.19,
"status": "ok"
},
"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": {
"headers": {
"content-type": "text/event-stream",
"strict-transport-security": "max-age=31536000; includeSubDomains; preload"
},
"http_status": 200,
"payload": {
"id": 5,
"jsonrpc": "2.0",
"result": {
"resources": []
}
},
"url": "https://mcp.foura.ai/mcp"
},
"latency_ms": 291.11,
"status": "ok"
},
"server_card": {
"details": {
"error": "Client error '404 Not Found' for url 'https://mcp.foura.ai/.well-known/mcp/server-card.json'\nFor more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/404",
"url": "https://mcp.foura.ai/.well-known/mcp/server-card.json"
},
"latency_ms": 417.37,
"status": "error"
},
"session_resume_probe": {
"details": {
"protocol_version": "2025-03-26",
"reason": "no_session_id",
"resume_expected": true,
"transport": "streamable-http"
},
"latency_ms": null,
"status": "warning"
},
"step_up_auth_probe": {
"details": {
"auth_required_checks": [],
"broad_scopes": [],
"challenge_headers": [],
"minimal_scope_documented": false,
"oauth_present": false,
"scope_specificity_ratio": 0.0,
"step_up_signals": [],
"supported_scopes": []
},
"latency_ms": null,
"status": "missing"
},
"tool_snapshot_probe": {
"details": {
"added": [],
"changed_outputs": [],
"current_tool_count": 4,
"previous_tool_count": 4,
"removed": [],
"similarity": 1.0
},
"latency_ms": null,
"status": "ok"
},
"tools_list": {
"details": {
"headers": {
"content-type": "text/event-stream",
"strict-transport-security": "max-age=31536000; includeSubDomains; preload"
},
"http_status": 200,
"payload": {
"id": 2,
"jsonrpc": "2.0",
"result": {
"tools": [
{
"annotations": {
"destructiveHint": false,
"openWorldHint": true,
"readOnlyHint": true
},
"description": "Send one HTTP request and return the response. Use it for static pages, JSON APIs, and server-rendered HTML. Set unblocker:true for targets that reject basic HTTP requests. Switch to foura_proxy if the response is blocked, and use foura_browser when the page needs JavaScript.",
"execution": {
"taskSupport": "forbidden"
},
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"accept_timeout_ms": {
"description": "Timeout in ms to receive the first response byte after the request is sent (0-120000). Omit for the default.",
"maximum": 120000,
"minimum": 0,
"type": "integer"
},
"connect_timeout_ms": {
"description": "Timeout in ms for establishing the TCP/TLS connection (0-120000). Omit to use the default.",
"maximum": 120000,
"minimum": 0,
"type": "integer"
},
"data": {
"anyOf": [
{
"type": "string"
},
{
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
}
],
"description": "Request body. Strings sent as-is; objects auto-serialized to JSON. Example: {\"query\": \"hello\"} for POST APIs."
},
"dns_cache_timeout_sec": {
"description": "How long (seconds) to cache the target's resolved DNS (0-240). Omit for the default.",
"maximum": 240,
"minimum": 0,
"type": "integer"
},
"followRedirects": {
"description": "Max number of redirects to follow (0-20). Omit to disable redirect following.",
"maximum": 20,
"minimum": 0,
"type": "integer"
},
"headers": {
"description": "Custom HTTP headers as [name, value] tuples. Example: [[\"Accept\", \"application/json\"], [\"Referer\", \"https://google.com/\"]]",
"items": {
"items": [
{
"type": "string"
},
{
"type": "string"
}
],
"type": "array"
},
"type": "array"
},
"method": {
"description": "HTTP method (GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS, or any WebDAV verb like PROPFIND/MKCOL)",
"minLength": 1,
"type": "string"
},
"offload_large": {
"description": "If true, response bodies of 50 KB or more are returned as a resource_link instead of inlined. Default false. Read the returned offloaded_resource_uri with resources/read.",
"type": "boolean"
},
"proxy": {
"description": "Optional proxy. Two forms: (1) URL `http://host:port` or `socks5://host:port`; (2) base36 ID from foura_proxy (e.g. `4DZ3VE`) to reuse the same exit. For rotation, use foura_proxy.",
"type": "string"
},
"returnBuffer": {
"description": "Return raw bytes as a serialized Buffer JSON shape (`{type:\"Buffer\", data:[byte, ...]}`, bytes 0-255) instead of decoded string. Use for binary responses (images, protobuf). Reconstruct: `Buffer.from(data.data)` in Node, `new Uint8Array(data.data)` elsewhere.",
"type": "boolean"
},
"server_response_timeout_ms": {
"description": "Timeout in ms for the server to send the complete response (0-120000). Omit for the default.",
"maximum": 120000,
"minimum": 0,
"type": "integer"
},
"timeout_ms": {
"description": "Overall request timeout in ms (max 120000, default 15000)",
"maximum": 120000,
"minimum": 0,
"type": "integer"
},
"tryJsonData": {
"description": "If true, attempt JSON.parse on the response body. On success, `data` is the parsed value (typically object or array). On parse failure, `data` silently stays as the original string - no error, no warning. Set false (or omit) when you need to detect parse failures explicitly.",
"type": "boolean"
},
"unblocker": {
"description": "Add common browser headers such as User-Agent, Sec-Ch-Ua, and Accept-Encoding. Default false. Enable it for targets that reject basic HTTP requests.",
"type": "boolean"
},
"url": {
"description": "Public target URL. Private or reserved targets return `ssrf_blocked`. Use {ts} in the URL to insert the current Unix timestamp. Example: https://api.example.com/v1/users.",
"format": "uri",
"type": "string"
},
"validate": {
"description": "Post-fetch response validation. When the response fails these checks the tool returns an error envelope.",
"properties": {
"data": {
"description": "Body validation: pass when the body contains an expected substring (accept), fail when it contains a blocked one (fail).",
"properties": {
"accept": {
"description": "Substrings the response body must contain",
"items": {
"type": "string"
},
"type": "array"
},
"fail": {
"description": "Substrings the response body must not contain",
"items": {
"type": "string"
},
"type": "array"
}
},
"type": "object"
},
"headers": {
"description": "Header validation: pass when an accepted header matches, fail when a blocklisted header matches.",
"properties": {
"accept": {
"additionalProperties": {
"type": "string"
},
"description": "Case-insensitive header substring rules. The response passes when at least one name/value pair matches across the redirect chain.",
"propertyNames": {
"type": "string"
},
"type": "object"
},
"fail": {
"additionalProperties": {
"type": "string"
},
"description": "Case-insensitive header substring rules that reject the response when any name/value pair matches.",
"propertyNames": {
"type": "string"
},
"type": "object"
}
},
"type": "object"
},
"status": {
"description": "Status-code validation: which HTTP status codes count as success (accept) or failure (fail).",
"properties": {
"accept": {
"description": "HTTP status codes to treat as success",
"items": {
"maximum": 9007199254740991,
"minimum": -9007199254740991,
"type": "integer"
},
"type": "array"
},
"fail": {
"description": "HTTP status codes to treat as failure",
"items": {
"maximum": 9007199254740991,
"minimum": -9007199254740991,
"type": "integer"
},
"type": "array"
}
},
"type": "object"
}
},
"type": "object"
}
},
"required": [
"method",
"url"
],
"type": "object"
},
"name": "foura_single",
"outputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {
"code": {
"description": "Stable error code for retry classification. auth_failed means the FourA API key was rejected; verify that key, not target-site credentials. Other codes: ssrf_blocked, upstream_non_json, output_validation_failed, bad_request (400), forbidden (403), not_found (404), rate_limited (429), at_capacity (503), service_disabled (503), service_unavailable (503), upstream_error (>=500), upstream_client_error (other 4xx), upstream_unknown (defensive).",
"type": "string"
},
"current": {
"additionalProperties": false,
"description": "Caller's current usage at error time",
"properties": {
"concurrency": {
"type": "number"
},
"rpm": {
"type": "number"
}
},
"type": "object"
},
"data": {
"description": "Decoded response body. String by default; object when tryJsonData=true and the body parsed as JSON; serialized Buffer JSON shape (`{type:\"Buffer\", data:[byte, ...]}`, bytes 0-255) when returnBuffer=true - reconstruct with `Buffer.from(data.data)` in Node, `new Uint8Array(data.data)` elsewhere. Omitted when offloaded."
},
"error": {
"description": "Human-readable error message",
"type": "string"
},
"headers": {
"anyOf": [
{
"items": {
"additionalProperties": {
"anyOf": [
{
"type": "string"
},
{
"items": {
"type": "string"
},
"type": "array"
}
]
},
"properties": {
"result": {
"additionalProperties": false,
"properties": {
"code": {
"maximum": 9007199254740991,
"minimum": -9007199254740991,
"type": "integer"
},
"reason": {
"type": "string"
},
"version": {
"type": "string"
}
},
"type": "object"
}
},
"type": "object"
},
"type": "array"
},
{
"type": "string"
},
{
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
}
],
"description": "Response headers per redirect hop, as an array of objects. Each entry has `result.{version, code, reason}` plus arbitrary header-name keys whose values are strings (or arrays of strings for multi-value headers like Set-Cookie / Link). Last array entry is the final response."
},
"limits": {
"additionalProperties": false,
"description": "Per-service limits at error time",
"properties": {
"maxConcurrency": {
"type": "number"
},
"maxRpm": {
"type": "number"
}
},
"type": "object"
},
"offloaded_resource_uri": {
"description": "foura-mcp://payload/<uuid>. Pass this URI to resources/read to retrieve the offloaded body.",
"type": "string"
},
"retryAfter": {
"description": "Seconds to wait before retrying (429/503)",
"type": "number"
},
"service": {
"enum": [
"single",
"proxy",
"browser",
"api"
],
"type": "string"
},
"size_bytes": {
"description": "Total offloaded body size in bytes",
"maximum": 9007199254740991,
"minimum": -9007199254740991,
"type": "integer"
},
"status": {
"description": "HTTP status code from the target. `0` indicates the request failed before any HTTP response (DNS failure, connection refused, timeout) - check the `error` field for the underlying reason.",
"maximum": 9007199254740991,
"minimum": -9007199254740991,
"type": "integer"
},
"total_time": {
"anyOf": [
{
"type": "number"
},
{
"type": "string"
},
{
"type": "null"
}
],
"description": "Wall-clock request duration in seconds. Number when present; string in some variants; null when the request never started."
}
},
"type": "object"
},
"title": "FourA - single HTTP request"
},
{
"annotations": {
"destructiveHint": false,
"openWorldHint": true,
"readOnlyHint": true
},
"description": "Route an HTTP request through rotating proxies with automatic retry. Use it when foura_single is blocked or the target requires a specific exit country. The response includes the proxy ID that succeeded; reuse it with foura_single or foura_browser, or exclude it with ignoreProxies. Use foura_browser when the page needs JavaScript. Set exitCountries for a strict country allowlist.",
"execution": {
"taskSupport": "forbidden"
},
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"exitCountries": {
"description": "Optional target-visible proxy countries as two-letter provider codes, for example [\"CZ\", \"GB\"]. Use codes supplied by the user or target requirements. When geography matters, do not guess codes or substitute unscoped rotation. Values are trimmed, uppercased, and deduplicated. Unknown exits are excluded and the request never falls back to another country.",
"items": {
"pattern": "^[A-Z]{2}$",
"type": "string"
},
"minItems": 1,
"type": "array"
},
"ignoreProxies": {
"description": "Encoded proxy IDs (base36 strings like \"4DZ3VE\") or proxy URLs to exclude from rotation.",
"items": {
"type": "string"
},
"type": "array"
},
"maxTries": {
"description": "Maximum rotation attempts before giving up (default 5, max 90). Difficult protected targets may need 25-30. Use exitCountries for country scope.",
"maximum": 90,
"minimum": 1,
"type": "integer"
},
"offload_large": {
"description": "If true, response bodies of 50 KB or more are returned as a resource_link instead of inlined. Default false. Read the returned offloaded_resource_uri with resources/read.",
"type": "boolean"
},
"request": {
"description": "The inner HTTP request to send through each proxy attempt. Validation rules here determine when a proxy is treated as failed and retried.",
"properties": {
"accept_timeout_ms": {
"description": "Timeout in ms to receive the first response byte after the request is sent (0-120000). Omit for the default.",
"maximum": 120000,
"minimum": 0,
"type": "integer"
},
"connect_timeout_ms": {
"description": "Timeout in ms for establishing the connection to the target through the proxy (0-120000). Omit for the default.",
"maximum": 120000,
"minimum": 0,
"type": "integer"
},
"data": {
"anyOf": [
{
"type": "string"
},
{
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
}
],
"description": "Request body."
},
"dns_cache_timeout_sec": {
"description": "How long (seconds) to cache the target's resolved DNS (0-240). Omit for the default.",
"maximum": 240,
"minimum": 0,
"type": "integer"
},
"followRedirects": {
"description": "Max number of redirects to follow (0-20). Omit to disable redirect following.",
"maximum": 20,
"minimum": 0,
"type": "integer"
},
"headers": {
"description": "Custom HTTP headers as [name, value] tuples. Example: [[\"Accept\", \"application/json\"]]",
"items": {
"items": [
{
"type": "string"
},
{
"type": "string"
}
],
"type": "array"
},
"type": "array"
},
"method": {
"description": "HTTP method (GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS, or any WebDAV verb)",
"minLength": 1,
"type": "string"
},
"returnBuffer": {
"description": "Return raw bytes as a serialized Buffer JSON shape ({type:\"Buffer\", data:[byte, ...]}) instead of a decoded string. Use for binary responses (images, protobuf).",
"type": "boolean"
},
"server_response_timeout_ms": {
"description": "Timeout in ms for the server to send the complete response (0-120000). Omit for the default.",
"maximum": 120000,
"minimum": 0,
"type": "integer"
},
"timeout_ms": {
"description": "Per-attempt timeout in ms",
"maximum": 120000,
"minimum": 0,
"type": "integer"
},
"tryJsonData": {
"description": "If true, attempt JSON.parse on the response body; on success `data` is the parsed value, otherwise it stays the original string. Omit to keep the body as-is.",
"type": "boolean"
},
"unblocker": {
"description": "Add common browser headers such as User-Agent, Sec-Ch-Ua, and Accept-Encoding. Default false. Enable it for targets that reject basic HTTP requests.",
"type": "boolean"
},
"url": {
"description": "Public target URL. Private or reserved targets return `ssrf_blocked`. Use {ts} in the URL to insert the current Unix timestamp. Example: https://shop.example.com/pricing.",
"format": "uri",
"type": "string"
},
"validate": {
"description": "Per-attempt response validation. A proxy attempt that fails these checks is treated as failed and the next proxy is tried.",
"properties": {
"data": {
"description": "Body validation: pass when the body contains an expected substring (accept), fail when it contains a blocked one (fail).",
"properties": {
"accept": {
"description": "Substrings the response body must contain to pass.",
"items": {
"type": "string"
},
"type": "array"
},
"fail": {
"description": "Substrings that, if present in the body, mark the response as failed.",
"items": {
"type": "string"
},
"type": "array"
}
},
"type": "object"
},
"headers": {
"description": "Header validation: pass when an accepted header matches, fail when a blocklisted header matches.",
"properties": {
"accept": {
"additionalProperties": {
"type": "string"
},
"description": "Case-insensitive header substring rules. The response passes when at least one name/value pair matches across the redirect chain.",
"propertyNames": {
"type": "string"
},
"type": "object"
},
"fail": {
"additionalProperties": {
"type": "string"
},
"description": "Case-insensitive header substring rules that reject the response when any name/value pair matches.",
"propertyNames": {
"type": "string"
},
"type": "object"
}
},
"type": "object"
},
"status": {
"description": "Status-code validation: which HTTP status codes count as success (accept) or failure (fail).",
"properties": {
"accept": {
"description": "HTTP status codes to treat as success",
"items": {
"maximum": 9007199254740991,
"minimum": -9007199254740991,
"type": "integer"
},
"type": "array"
},
"fail": {
"description": "HTTP status codes to treat as failure",
"items": {
"maximum": 9007199254740991,
"minimum": -9007199254740991,
"type": "integer"
},
"type": "array"
}
},
"type": "object"
}
},
"type": "object"
}
},
"required": [
"method",
"url"
],
"type": "object"
},
"timeout_ms": {
"description": "Overall timeout across all rotation attempts in ms (default 45000, max 120000). Must be positive.",
"exclusiveMinimum": 0,
"maximum": 120000,
"type": "integer"
}
},
"required": [
"request"
],
"type": "object"
},
"name": "foura_proxy",
"outputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {
"code": {
"description": "Stable error code for retry classification. auth_failed means the FourA API key was rejected; verify that key, not target-site credentials. no_eligible_proxy means the strict exitCountries scope had no match. Keep that scope and retry later; do not propose or perform an unscoped fallback.",
"type": "string"
},
"current": {
"additionalProperties": false,
"properties": {
"concurrency": {
"type": "number"
},
"rpm": {
"type": "number"
}
},
"type": "object"
},
"data": {
"description": "Decoded response body. Omitted when offloaded."
},
"details": {
"additionalProperties": false,
"description": "Structured no_eligible_proxy context containing the normalized requested country scope. Preserve this scope and retry later. Do not propose or perform an unscoped fallback; change it only after the user explicitly changes the requirement.",
"properties": {
"exitCountries": {
"items": {
"pattern": "^[A-Z]{2}$",
"type": "string"
},
"minItems": 1,
"type": "array"
}
},
"required": [
"exitCountries"
],
"type": "object"
},
"error": {
"description": "Human-readable error message",
"type": "string"
},
"exitCountry": {
"description": "Latest available two-letter target-visible exit-country code used for selection. Present on successful requests that use exitCountries.",
"pattern": "^[A-Z]{2}$",
"type": "string"
},
"headers": {
"anyOf": [
{
"items": {
"additionalProperties": {
"anyOf": [
{
"type": "string"
},
{
"items": {
"type": "string"
},
"type": "array"
}
]
},
"properties": {
"result": {
"additionalProperties": false,
"properties": {
"code": {
"maximum": 9007199254740991,
"minimum": -9007199254740991,
"type": "integer"
},
"reason": {
"type": "string"
},
"version": {
"type": "string"
}
},
"type": "object"
}
},
"type": "object"
},
"type": "array"
},
{
"type": "string"
},
{
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
}
],
"description": "Response headers per redirect hop, as an array of objects. Each entry has `result.{version, code, reason}` plus arbitrary header-name keys whose values are strings (or arrays of strings for multi-value headers like Set-Cookie / Link)."
},
"limits": {
"additionalProperties": false,
"properties": {
"maxConcurrency": {
"type": "number"
},
"maxRpm": {
"type": "number"
}
},
"type": "object"
},
"offloaded_resource_uri": {
"description": "foura-mcp://payload/<uuid>. Pass this URI to resources/read to retrieve the offloaded body.",
"type": "string"
},
"proxy": {
"description": "Base36 ID of the exit that succeeded (e.g. `4DZ3VE`). Pass it to foura_single.proxy or foura_browser.proxy to reuse that exit, or to foura_proxy.ignoreProxies to skip it on future rotations.",
"type": "string"
},
"request": {
"description": "Echoed PrRequest from upstream PrResponseError"
},
"retryAfter": {
"type": "number"
},
"service": {
"enum": [
"single",
"proxy",
"browser",
"api"
],
"type": "string"
},
"size_bytes": {
"description": "Total offloaded body size in bytes",
"maximum": 9007199254740991,
"minimum": -9007199254740991,
"type": "integer"
},
"status": {
"description": "HTTP status code from the target (from the succeeding proxy attempt). `0` indicates every attempt failed before any HTTP response (DNS / connection refused / timeout) - check the `error` field for the underlying reason.",
"maximum": 9007199254740991,
"minimum": -9007199254740991,
"type": "integer"
},
"total": {
"description": "Outer total time in seconds (proxy selection + retries + the successful inner attempt). Float.",
"type": "number"
},
"total_time": {
"anyOf": [
{
"type": "number"
},
{
"type": "string"
},
{
"type": "null"
}
],
"description": "Per-attempt wall-clock duration of the succeeding inner request"
}
},
"type": "object"
},
"title": "FourA - HTTP request via rotating proxies"
},
{
"annotations": {
"destructiveHint": false,
"openWorldHint": true,
"readOnlyHint": true
},
"description": "Load a public URL in a full browser session. JavaScript runs, the DOM renders, and cookies come back with the response. Use it for single-page apps, lazy-loaded content, or supported browser challenges. For a protected page, call foura_proxy first and pass its returned proxy ID here to reuse that exit. Set unblocker:false when you want the page exactly as it loads.",
"execution": {
"taskSupport": "forbidden"
},
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"checkStatus": {
"description": "Expected HTTP status code. A different status returns an error envelope carrying the actual value. Example: 200 for a product page.",
"maximum": 9007199254740991,
"minimum": -9007199254740991,
"type": "integer"
},
"checkText": {
"description": "Validate the rendered HTML once navigation completes. This is a substring check, not a waiter, and it doesn't poll. A missing substring returns an error envelope. Example: \"add to cart\" for a product page.",
"type": "string"
},
"cookies": {
"description": "Cookies to set before navigation: [{ name, value, domain? }]",
"items": {
"properties": {
"domain": {
"description": "Cookie domain (e.g. .example.com). Omit to scope it to the navigated URL's host.",
"type": "string"
},
"name": {
"description": "Cookie name.",
"type": "string"
},
"value": {
"description": "Cookie value.",
"type": "string"
}
},
"required": [
"name",
"value"
],
"type": "object"
},
"type": "array"
},
"headers": {
"additionalProperties": {
"type": "string"
},
"description": "Custom HTTP headers as a key-value object rather than [name, value] tuples. Example: {\"Referer\": \"https://google.com/\"}",
"propertyNames": {
"type": "string"
},
"type": "object"
},
"offload_large": {
"description": "If true, response bodies of 50 KB or more are returned as a resource_link instead of inlined. Default false. Read the returned offloaded_resource_uri with resources/read.",
"type": "boolean"
},
"proxy": {
"description": "Optional proxy. Three forms: (1) URL `http://user:pass@host:port` or `socks5://host:port`; (2) base36 ID from foura_proxy (e.g. `4DZ3VE`) to reuse the same exit; (3) omit to use the default route.",
"type": "string"
},
"timeout_ms": {
"description": "Page load timeout in ms (default 30000, max 120000)",
"maximum": 120000,
"minimum": 0,
"type": "integer"
},
"unblocker": {
"description": "Handle supported anti-bot or captcha challenges during navigation. Default true. Set false to return the page exactly as it loads, including any challenge page.",
"type": "boolean"
},
"url": {
"description": "Public URL to load in a full browser session. Private or reserved targets return `ssrf_blocked`. Example: https://shop.example.com/product/123.",
"format": "uri",
"type": "string"
},
"userAgent": {
"description": "Override the browser's User-Agent string",
"type": "string"
}
},
"required": [
"url"
],
"type": "object"
},
"name": "foura_browser",
"outputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {
"body": {
"anyOf": [
{
"type": "string"
},
{
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
}
],
"description": "Fully-rendered page content. String HTML when content-type is HTML; object when the page returned JSON and it was auto-parsed. Field is named `body`, not `data`. Omitted when offloaded."
},
"code": {
"description": "Stable error code for retry classification. auth_failed means the FourA API key was rejected; verify that key, not target-site credentials. Other codes: ssrf_blocked, upstream_non_json, output_validation_failed, bad_request (400), forbidden (403), not_found (404), rate_limited (429), at_capacity (503), service_disabled (503), service_unavailable (503), upstream_error (>=500), upstream_client_error (other 4xx), upstream_unknown (defensive).",
"type": "string"
},
"cookies": {
"description": "Full cookie objects collected after navigation, including name, value, domain, path, expiry, and same-site settings.",
"items": {
"additionalProperties": {},
"properties": {
"domain": {
"type": "string"
},
"expires": {
"type": "number"
},
"httpOnly": {
"type": "boolean"
},
"name": {
"type": "string"
},
"path": {
"type": "string"
},
"sameSite": {
"type": "string"
},
"secure": {
"type": "boolean"
},
"session": {
"type": "boolean"
},
"size": {
"type": "number"
},
"value": {
"type": "string"
}
},
"required": [
"name",
"value"
],
"type": "object"
},
"type": "array"
},
"current": {
"additionalProperties": false,
"properties": {
"concurrency": {
"type": "number"
},
"rpm": {
"type": "number"
}
},
"type": "object"
},
"error": {
"description": "Human-readable error message",
"type": "string"
},
"headers": {
"additionalProperties": {},
"description": "Response headers as a flat key-value object. Values are typically strings but may be arrays for repeated headers.",
"propertyNames": {
"type": "string"
},
"type": "object"
},
"limits": {
"additionalProperties": false,
"properties": {
"maxConcurrency": {
"type": "number"
},
"maxRpm": {
"type": "number"
}
},
"type": "object"
},
"offloaded_resource_uri": {
"description": "foura-mcp://payload/<uuid>. Pass this URI to resources/read to retrieve the offloaded body.",
"type": "string"
},
"retryAfter": {
"type": "number"
},
"service": {
"enum": [
"single",
"proxy",
"browser",
"api"
],
"type": "string"
},
"size_bytes": {
"description": "Total offloaded body size in bytes",
"maximum": 9007199254740991,
"minimum": -9007199254740991,
"type": "integer"
},
"status": {
"description": "HTTP status code from the target page. `0` indicates the navigation failed before any HTTP response (DNS / connection refused / timeout) - check the `error` field for the underlying reason.",
"maximum": 9007199254740991,
"minimum": -9007199254740991,
"type": "integer"
},
"userAgent": {
"description": "The User-Agent the browser session presented",
"type": "string"
}
},
"type": "object"
},
"title": "FourA - full browser navigation"
},
{
"annotations": {
"destructiveHint": false,
"openWorldHint": true,
"readOnlyHint": true
},
"description": "Give it a public URL and get the content back. This is the default when you don't want to choose between HTTP, proxy rotation, and a full browser. On protected targets, or whenever HTTP 200 may still be a challenge or incomplete page, pass validate.data.accept with text unique to the real content. Auto makes bounded attempts and returns either validated content or a failure; it cannot guarantee a match. The response includes completion details and, by default, reusable session values for follow-up calls. Use a lower-level tool when you need direct control over HTTP, proxy selection, or browser navigation.",
"execution": {
"taskSupport": "forbidden"
},
"inputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"properties": {
"data": {
"anyOf": [
{
"type": "string"
},
{
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
}
],
"description": "Request body for non-GET methods. Strings sent as-is; objects auto-serialized to JSON."
},
"followRedirects": {
"description": "Follow up to N redirects for HTTP and proxy requests. Default 5; 0 means don't follow. Browser navigation handles redirects itself.",
"maximum": 20,
"minimum": 0,
"type": "integer"
},
"forceProxy": {
"description": "Require proxy routing for every target request. Default true. Send false to allow direct HTTP when suitable.",
"type": "boolean"
},
"headers": {
"description": "Custom HTTP headers as [name, value] tuples. Example: [[\"Accept\", \"application/json\"], [\"Authorization\", \"Bearer ...\"]]",
"items": {
"items": [
{
"type": "string"
},
{
"type": "string"
}
],
"type": "array"
},
"type": "array"
},
"ignoreProxies": {
"description": "Exits to avoid - base36 proxy IDs (like \"4DZ3VE\") or proxy URLs. Use this to rotate away from an exit that was just blocked.",
"items": {
"type": "string"
},
"type": "array"
},
"method": {
"description": "HTTP method for the target request (default GET).",
"minLength": 1,
"type": "string"
},
"offload_large": {
"description": "If true, response bodies of 50 KB or more are returned as a resource_link instead of inlined. Default false. Read the returned offloaded_resource_uri with resources/read.",
"type": "boolean"
},
"returnSession": {
"description": "Return reusable {proxy, cookies, userAgent} values for follow-up calls. Default true. Send false for a leaner response when you only need the content.",
"type": "boolean"
},
"timeout_ms": {
"description": "Total time budget in ms for the whole operation. Every attempt must fit inside it. Default 120000, max 180000.",
"maximum": 180000,
"minimum": 5000,
"type": "integer"
},
"url": {
"description": "Public target URL. Private or reserved targets return `ssrf_blocked`. Use {ts} in the URL to insert the current Unix timestamp. Example: https://example.com/page.",
"format": "uri",
"type": "string"
},
"validate": {
"description": "Post-fetch response validation. When the response fails these checks foura_auto returns an error envelope.",
"properties": {
"data": {
"description": "Body validation: pass when the body contains an expected substring (accept), fail when it contains a blocked one (fail).",
"properties": {
"accept": {
"description": "Case-sensitive substrings the final body must contain. Use this on protected targets to distinguish the real page from a challenge page.",
"items": {
"type": "string"
},
"type": "array"
},
"fail": {
"description": "Substrings the final body must not contain",
"items": {
"type": "string"
},
"type": "array"
}
},
"type": "object"
},
"headers": {
"description": "Header validation: pass when an accepted header matches, fail when a blocklisted header matches.",
"properties": {
"accept": {
"additionalProperties": {
"type": "string"
},
"description": "Case-insensitive header substring rules. The response passes when at least one name/value pair matches.",
"propertyNames": {
"type": "string"
},
"type": "object"
},
"fail": {
"additionalProperties": {
"type": "string"
},
"description": "Case-insensitive header substring rules that reject the response when any name/value pair matches.",
"propertyNames": {
"type": "string"
},
"type": "object"
}
},
"type": "object"
},
"status": {
"description": "Status-code validation: which HTTP status codes count as success (accept) or failure (fail).",
"properties": {
"accept": {
"description": "HTTP status codes to treat as success",
"items": {
"maximum": 9007199254740991,
"minimum": -9007199254740991,
"type": "integer"
},
"type": "array"
},
"fail": {
"description": "HTTP status codes to treat as failure",
"items": {
"maximum": 9007199254740991,
"minimum": -9007199254740991,
"type": "integer"
},
"type": "array"
}
},
"type": "object"
}
},
"type": "object"
}
},
"required": [
"url"
],
"type": "object"
},
"name": "foura_auto",
"outputSchema": {
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false,
"properties": {
"attempts": {
"description": "Total attempts when the request failed (also present inside `meta`).",
"type": "number"
},
"code": {
"description": "Stable error code for retry classification. auth_failed means the FourA API key was rejected; verify that key, not target-site credentials. Other codes: ssrf_blocked, upstream_non_json, output_validation_failed, bad_request (400), forbidden (403), not_found (404), rate_limited (429), at_capacity (503), service_disabled (503), service_unavailable (503), upstream_error (>=500), upstream_client_error (other 4xx), upstream_unknown (defensive).",
"type": "string"
},
"current": {
"additionalProperties": false,
"description": "Caller's current usage at error time",
"properties": {
"concurrency": {
"type": "number"
},
"rpm": {
"type": "number"
}
},
"type": "object"
},
"data": {
"description": "Decoded response body of the delivered page. String by default; object when the body parsed as JSON. Omitted when offloaded."
},
"error": {
"description": "Human-readable error message when the request could not deliver content within the budget.",
"type": "string"
},
"headers": {
"anyOf": [
{
"items": {
"additionalProperties": {
"anyOf": [
{
"type": "string"
},
{
"items": {
"type": "string"
},
"type": "array"
}
]
},
"properties": {
"result": {
"additionalProperties": false,
"properties": {
"code": {
"maximum": 9007199254740991,
"minimum": -9007199254740991,
"type": "integer"
},
"reason": {
"type": "string"
},
"version": {
"type": "string"
}
},
"type": "object"
}
},
"type": "object"
},
"type": "array"
},
{
"type": "string"
},
{
"additionalProperties": {},
"propertyNames": {
"type": "string"
},
"type": "object"
}
],
"description": "Response headers from the successful request, as an array of objects. Each entry has `result.{version, code, reason}` plus header-name keys. The last entry is the final response."
},
"limits": {
"additionalProperties": false,
"description": "Per-service limits at error time",
"properties": {
"maxConcurrency": {
"type": "number"
},
"maxRpm": {
"type": "number"
}
},
"type": "object"
},
"meta": {
"additionalProperties": {},
"description": "Completion details: rung, solved, attempts, and credits. Always present.",
"properties": {
"attempts": {
"description": "Total fetch attempts made for this request.",
"type": "number"
},
"credits": {
"description": "Total credits spent across all attempts.",
"type": "number"
},
"rung": {
"description": "Which method delivered the content (e.g. probe / proxy / browser / cache). `cache` means a reusable session was used.",
"type": "string"
},
"solved": {
"description": "True when a bot-defense was actively solved on the way to the content (vs. the target being open).",
"type": "boolean"
}
},
"type": "object"
},
"offloaded_resource_uri": {
"description": "foura-mcp://payload/<uuid>. Pass this URI to resources/read to retrieve the offloaded body.",
"type": "string"
},
"retryAfter": {
"description": "Seconds to wait before retrying a 429 or 503 response",
"type": "number"
},
"service": {
"enum": [
"single",
"proxy",
"browser",
"api",
"auto"
],
"type": "string"
},
"session": {
"additionalProperties": {},
"description": "Reusable {proxy, cookies, userAgent} values for follow-up calls. For plain HTTP, call foura_single with session.proxy as proxy, session.userAgent as a User-Agent header, and session.cookies serialized as a Cookie header. For JavaScript, pass the three values to foura_browser fields. Present by default; send returnSession:false to omit.",
"properties": {
"cookies": {
"description": "Cookie objects accumulated by the winning session. For foura_single, serialize their name/value pairs into a Cookie header; pass the array directly to foura_browser.cookies."
},
"proxy": {
"description": "Opaque base36 exit id of the session (e.g. `4DZ3VE`) - pass to foura_single.proxy / foura_proxy.proxy to replay through the same exit. Never a raw IP.",
"type": "string"
},
"userAgent": {
"description": "User-Agent used by the winning session. Send it as a User-Agent header to foura_single or as foura_browser.userAgent.",
"type": "string"
}
},
"type": "object"
},
"size_bytes": {
"description": "Total offloaded body size in bytes",
"maximum": 9007199254740991,
"minimum": -9007199254740991,
"type": "integer"
},
"status": {
"description": "HTTP status code from the request that delivered the content. `0` means no HTTP response was received; check `error`.",
"maximum": 9007199254740991,
"minimum": -9007199254740991,
"type": "integer"
}
},
"type": "object"
},
"title": "FourA - auto (smart fetch, picks the method for you)"
}
]
}
},
"url": "https://mcp.foura.ai/mcp"
},
"latency_ms": 389.68,
"status": "ok"
},
"transport_compliance_probe": {
"details": {
"bad_protocol_error": null,
"bad_protocol_headers": {
"content-type": "application/json; charset=utf-8",
"strict-transport-security": "max-age=31536000; includeSubDomains; preload"
},
"bad_protocol_payload": {
"error": {
"code": -32602,
"message": "Unsupported MCP-Protocol-Version: 1999-99-99. Supported (from @modelcontextprotocol/sdk): 2025-11-25, 2025-06-18, 2025-03-26, 2024-11-05, 2024-10-07. Upgrade foura-mcp's SDK pin to extend."
},
"id": null,
"jsonrpc": "2.0"
},
"bad_protocol_status_code": 400,
"delete_error": null,
"delete_status_code": null,
"expired_session_error": null,
"expired_session_status_code": null,
"issues": [
"missing_session_id",
"missing_protocol_header"
],
"last_event_id_visible": false,
"protocol_header_present": false,
"requested_protocol_version": "2025-03-26",
"session_id_present": false,
"transport": "streamable-http"
},
"latency_ms": 291.48,
"status": "warning"
},
"utility_coverage_probe": {
"details": {
"completions": {
"advertised": false,
"live_probe": "not_executed",
"sample_target": {
"argument_name": "url",
"name": "scrape_product_page",
"type": "prompt"
}
},
"initialize_capability_keys": [
"prompts",
"resources",
"tools"
],
"pagination": {
"metadata_signal": false,
"next_cursor_methods": [],
"supported": false
},
"tasks": {
"advertised": false,
"http_status": 200,
"probe_status": "missing"
}
},
"latency_ms": 97.73,
"status": "missing"
}
},
"failures": {
"oauth_authorization_server": {
"reason": "no_authorization_server"
},
"oauth_protected_resource": {
"error": "Client error '404 Not Found' for url 'https://mcp.foura.ai/.well-known/oauth-protected-resource'\nFor more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/404",
"url": "https://mcp.foura.ai/.well-known/oauth-protected-resource"
},
"openid_configuration": {
"reason": "no_authorization_server"
},
"prompt_get": {
"headers": {
"content-type": "text/event-stream",
"strict-transport-security": "max-age=31536000; includeSubDomains; preload"
},
"http_status": 200,
"payload": {
"error": {
"code": -32602,
"message": "MCP error -32602: Invalid arguments for prompt scrape_product_page: [\n {\n \"expected\": \"string\",\n \"code\": \"invalid_type\",\n \"path\": [\n \"url\"\n ],\n \"message\": \"Invalid input: expected string, received undefined\"\n }\n]"
},
"id": 4,
"jsonrpc": "2.0"
},
"prompt_arguments": [
{
"description": "Product page URL (any e-commerce site)",
"name": "url",
"required": true
}
],
"prompt_name": "scrape_product_page",
"url": "https://mcp.foura.ai/mcp"
},
"server_card": {
"error": "Client error '404 Not Found' for url 'https://mcp.foura.ai/.well-known/mcp/server-card.json'\nFor more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/404",
"url": "https://mcp.foura.ai/.well-known/mcp/server-card.json"
}
},
"remote_url": "https://mcp.foura.ai/mcp",
"server_card_payload": null,
"server_identifier": "ai.foura/mcp"
}
Known versions
0.5.0
Validation history
| Timestamp | Status | Score | Latency | Tools |
|---|---|---|---|---|
| Aug 04, 2026 08:50:49 PM UTC | Healthy | 74.0 | 3672.8 ms | 4 |
| Jul 31, 2026 06:38:06 AM UTC | Healthy | 43.1 | 3663.5 ms | 0 |
Validation timeline
| Validated | Summary | Score | Protocol | Auth mode | Tools | High-risk tools | Changes |
|---|---|---|---|---|---|---|---|
| Aug 04, 2026 08:50:49 PM UTC | Healthy | 74.0 | 2025-03-26 | public | 4 | 0 | auth_mode_changed write_surface_expanded tool_snapshot_changed |
| Jul 31, 2026 06:38:06 AM UTC | Healthy | 43.1 | unknown | unknown | 0 | 0 | none |
Recent validation runs
| Started | Status | Summary | Latency | Checks |
|---|---|---|---|---|
| Aug 04, 2026 08:50:46 PM UTC | Completed | Healthy | 3672.8 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 |
| Jul 31, 2026 06:38:03 AM UTC | Completed | Healthy | 3663.5 ms | |
Public server reputation
Incident & change feed
| Timestamp | Event | Details |
|---|---|---|
| Aug 04, 2026 08:50:49 PM UTC | Latest validation: healthy | Score 74.0 with status healthy. |
| Aug 04, 2026 08:50:49 PM UTC | Score changed | Score delta +30.8 versus the previous run. |
| Aug 04, 2026 08:50:49 PM UTC | Tool snapshot changed | Added 4, removed 0, and changed 0 tool contracts. |
| Aug 04, 2026 08:50:49 PM UTC | Auth mode changed | Auth mode moved from unknown to public. |
Capabilities
- OAuth:
- DCR/CIMD:
- Prompts:
- Homepage: https://foura.ai/mcp
- Docs: none
- Support: none
- Icon: none
- Remote endpoint: https://mcp.foura.ai/mcp
- Server card: none
Benchmark tasks
| Benchmark task | Status | Evidence |
|---|---|---|
| Discover tools | Passes |
|
| Read-only fetch flow | Degraded |
|
| OAuth-required connect | Degraded |
|
| Safe write flow with confirmation | Likely to fail |
|
Utility coverage
Transport compliance drilldown
Issues: missing_session_id, missing_protocol_header
Request association
Connector replay
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. | ||
Tool snapshot diff & changelog
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. | ||
Validation diff
Regressed checks: action_safety_probe, oauth_protected_resource, prompt_get, server_card
Improved checks: connector_replay_probe, determinism_probe, initialize, interactive_flow_probe, official_registry_probe, probe_noise_resilience, prompts_list, provenance_divergence_probe, resources_list, tool_snapshot_probe, tools_list
| Component | Previous | Latest | Delta |
|---|---|---|---|
backward_compatibility_score | 2.0 | 4.0 | 2.0 |
trust_confidence_score | 1.75 | 2.94 | 1.19 |
advanced_capability_coverage_score | 3.0 | 1.88 | -1.12 |
connector_replay_score | 3.0 | 4.0 | 1.0 |
result_shape_stability_score | 3.0 | 4.0 | 1.0 |
tool_snapshot_churn_score | 3.0 | 4.0 | 1.0 |
utility_coverage_score | 2.0 | 1.0 | -1.0 |
Registry & provenance divergence
| Field | Registry | Live server card |
|---|---|---|
| Title | n/a | n/a |
| Version | n/a | n/a |
| Homepage | n/a | n/a |
Active alerts
- Tool snapshot changed (high)
Tools were added, removed, or materially changed between the latest two validations. - Auth mode changed (high)
Auth mode changed from unknown to public. - Write-action surface expanded (high)
The number of high-risk write, delete, exec, or bulk-access tools increased on the latest run.
Aliases & registry graph
| Identifier | Source | Canonical | Score |
|---|---|---|---|
ai.foura/mcp |
official_registry | yes | 74.0 |
Alias consolidation
Source disagreements
| Field | What differs | Observed values |
|---|---|---|
| No source disagreements detected. | ||
Fix it
Why this score?
Algorithmic score breakdown
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. | Add an explicit confirm/dry-run parameter or two-step confirmation flow to write, delete, exec, and egress-capable tools before they can make destructive changes.Playbook
|
| 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
|
| 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. | Only send roots/list, sampling/createMessage, or elicitation/create requests while handling an active client-initiated request, never on idle sessions.Playbook
|
| High | Expose /.well-known/oauth-protected-resource | Without a protected-resource document, OAuth clients cannot discover auth requirements reliably. | Serve /.well-known/oauth-protected-resource and point it at your authorization server metadata.Playbook
|
| High | Publish OAuth authorization-server metadata | Clients need authorization-server metadata to discover issuer, endpoints, and DCR support. | Publish /.well-known/oauth-authorization-server from your issuer and include registration_endpoint when supported.Playbook
|
| 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
|
| High | Respond to auth mode changed | Auth mode changed from unknown to public. | Document the new auth posture and confirm protected-resource and challenge metadata still match reality. |
| High | Respond to tool snapshot changed | Tools were added, removed, or materially changed between the latest two validations. | Publish a first-class changelog for tool additions, removals, and breaking schema changes.Playbook
|
| High | Respond to write-action surface expanded | The number of high-risk write, delete, exec, or bulk-access tools increased on the latest run. | Review the newly exposed write and destructive actions before publishing them broadly.Playbook
|
| Medium | Adopt a current MCP protocol revision | Older protocol revisions reduce compatibility with newer clients and registry programs. | Advertise a current MCP protocol revision (2025-06-18 or later) in both the initialize response and the MCP-Protocol-Version header.Playbook
|
| Medium | Close connector-publishing gaps | Connector catalogs care about protocol recency, session behavior, auth clarity, and tool-surface stability. | |
| Medium | Document minimal scopes and return cleaner auth challenges | Modern clients expect granular scopes and step-up auth signals such as WWW-Authenticate scope hints. | Return granular scopes and WWW-Authenticate challenge hints instead of forcing overly broad auth upfront.Playbook
|
| 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
|
| Medium | Support resumable HTTP sessions cleanly | Modern MCP clients increasingly expect resumable session behavior on streamable HTTP transports. | Persist session state keyed by Mcp-Session-Id and honor Last-Event-ID on GET reconnects so clients can resume a dropped Streamable HTTP session.Playbook
|
| Low | Expose modern utility surfaces like completions, pagination, or tasks | Utility coverage improves interoperability with larger clients and long-lived agent workflows. | Expose completions, pagination, and task metadata where supported so larger clients can plan and resume work safely.Playbook
|
| Low | Publish newer MCP capability signals | Roots, sampling, elicitation, structured outputs, and related metadata improve client understanding and ranking. | Advertise only the advanced capabilities (roots, sampling, elicitation) you have actually implemented end to end in the initialize capabilities object.Playbook
|
Point loss breakdown
| Component | Current | Points missing |
|---|---|---|
| Utility Coverage | 1/4 | -3.0 |
| Recovery Semantics | 1.5/4 | -2.5 |
| Advanced Capability Coverage | 1.9/4 | -2.1 |
| Transport Compliance | 2/4 | -2.0 |
| Spec Recency | 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 |
| Least Privilege Scope | 2/4 | -2.0 |
| Destructive Operation Safety | 2/4 | -2.0 |
Compatibility profiles
Connector URL: https://mcp.foura.ai/mcp # No OAuth metadata detected. # Server: ai.foura/mcp
{
"mcpServers": {
"mcp": {
"command": "npx",
"args": ["mcp-remote", "https://mcp.foura.ai/mcp"]
}
}
}
smithery mcp add "https://mcp.foura.ai/mcp"
curl -sS https://mcp.foura.ai/mcp -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"}}}'
Governance
MCP TrustOps
TrustOps turns this report into operational controls: freshness SLAs, authenticated validation, semantic benchmarks, policy exports, alert subscriptions, badges, cost/compliance metadata, and runtime routing. Fresh trusted index decisions stay separate from long-tail inventory so stale scores do not masquerade as current evidence.
/v1/decideAlert subscription types
MCP Runtime hosting
Verify Hosted MCP turns a trusted server report into a managed remote MCP endpoint with GitHub deployment provenance, sandbox policy, encrypted secrets, release history, rollback, and audit/usage events.
/hosted/{namespace}/{name}/mcp| Deployment | Status | Endpoint | Release |
|---|---|---|---|
| No hosted runtime deployments yet. | |||
Authenticated validation sessions
Public validation is free. Authenticated validation is paid and proves scoped behavior, write-action safeguards, and authenticated tool execution.
/v1/verify/v1/ci/previewInstall snippets
Connector URL: https://mcp.foura.ai/mcp # No OAuth metadata detected. # Server: ai.foura/mcp
{
"mcpServers": {
"mcp": {
"command": "npx",
"args": ["mcp-remote", "https://mcp.foura.ai/mcp"]
}
}
}
smithery mcp add "https://mcp.foura.ai/mcp"
curl -sS https://mcp.foura.ai/mcp -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
tools/list, prompts/list, and resources/list checks.ai.foura/mcp.