{"uid":"cap_IB-ADfp6ZBAth3rKd3pSh","slug":"council-of-ai-mcp-endpoint-probe-24d3b44e","name":"Council of AI — MCP Endpoint Probe","description":"We measure how AI systems behave against frozen, published tests and publish checkable evidence. Issued measurement cards are signed; unsigned supporting runs are labelled. 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I want the signed receipt too."},{"title":"Verify MCP endpoint for a published registry","prompt":"I'm curating a directory of public MCP servers — can you check https://tools.myservice.io/mcp and give me its reachability state, negotiated protocol version, and a signed receipt I can attach as evidence?"},{"title":"Diagnose a non-responding MCP server","prompt":"My MCP server at https://internal.mycompany.com/agent/mcp seems to be down — can you probe it and tell me if it's UNREACHABLE, TIMEOUT, or returning an MCP_ERROR so I know where to start debugging?"}],"resultDescription":"A JSON receipt containing: the probe state (RESPONDED, AUTH_REQUIRED, NOT_MCP, MCP_ERROR, UNREACHABLE, or TIMEOUT), tool count and SHA-256 of tool names (if available), the requested and negotiated MCP protocol versions, whether a tool was called, and a cryptographically signed receipt with SHA-256 hash and optional ed25519 signature for independent verification.","failureModes":["UNREACHABLE — target URL could not be connected to","TIMEOUT — target did not respond within the probe window","NOT_MCP — target responded but is not an MCP-compatible endpoint","MCP_ERROR — target is MCP but returned a protocol-level error","AUTH_REQUIRED — target requires authentication before responding","Invalid or non-HTTPS URL rejected with validation error","Private, link-local, or metadata addresses refused"],"whenToPreferThis":"Use this endpoint when you need an independent, cryptographically verifiable probe of a public MCP (Streamable HTTP) endpoint — especially when you need a signed receipt as auditable evidence of the endpoint's state, tool inventory, or protocol compliance. Prefer it over ad-hoc health checks when auditability and non-repudiation matter, or when building registries, directories, or compliance workflows around MCP servers.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T04:39:58.262Z","isFirstParty":false,"canonicalSlug":"council-of-ai-mcp-endpoint-probe-24d3b44e"}