{"attribution":"MCP Queen — the evidence layer for MCP (https://mcpqueen.com)","license":"CC BY 4.0 — free to use with attribution and a link to mcpqueen.com","methodology":"https://mcpqueen.com/registry#methodology","docs":"https://mcpqueen.com/api","generated_at":"2026-09-07T13:58:47.822Z","server":{"name":"io.github.Degrudv/caravan","title":"Caravan","description":"Test-network group buying through nine buyer and seller tools.","version":"0.0.0","remote_url":"https://caravan-mcp-server.degrudv.workers.dev/mcp","repo_url":null},"operational_grade":{"grade":"F","score":3,"provisional":0,"reachable":0,"auth_state":"unreachable","latency_ms":134,"tool_count":null,"probed_at":"2026-09-07T08:32:48.117Z","evidence":[{"criterion":"reachability","points":0,"max":25,"evidence":"HTTP 400 in 134ms — JSON-RPC error: {\"code\":-32600,\"message\":\"MCP-Protocol-Version must equal 2025-11-25\"}"},{"criterion":"protocol","points":0,"max":15,"evidence":"no handshake"},{"criterion":"tooling","points":0,"max":35,"evidence":"unreachable — no tooling to assess"},{"criterion":"latency","points":0,"max":10,"evidence":"not measurable"},{"criterion":"provenance","points":3,"max":15,"evidence":"description present; no repository URL; version 0.0.0; namespace io.github.Degrudv does NOT match remote host (expected *.degrudv.github.io)"}],"protocol_access":"unreachable"},"field_semantics":{"auth_state":"Deprecated name retained for compatibility. It means protocol handshake/discovery access only, not tool-level data entitlement.","protocol_access":"Preferred name for auth_state."},"audit_state":"observations_published","observations":[{"dimension":"security","metric":"authentication_boundary","status":"observed","value_text":"unreachable","evidence":"Live protocol probe observed auth_state=unreachable. This describes discovery/access behavior; it is not by itself a vulnerability finding.","source_type":"live_probe","sample_size":null,"observed_at":"2026-09-07T08:32:48.117Z","methodology_version":"trust-v1"}],"response_benchmarks":[],"reviewed_field_reports":[],"interpretation":"Dimensions are independent; missing evidence is not a pass; field reports are qualitative, moderated and never votes."}