{"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":"2026-09-05T06:37:10.391Z","server":{"name":"io.github.402signalhq/402signal","title":"402Signal","description":"Fail-closed x402 router. Authorize $0.003 USDC; live eligible routes settle, normal misses cost $0.","version":"0.3.1","remote_url":"https://402signal.com/mcp/v0.3.1","repo_url":null},"operational_grade":{"grade":"F","score":5,"provisional":0,"reachable":0,"auth_state":"unreachable","latency_ms":229,"tool_count":null,"probed_at":"2026-09-05T03:00:32.339Z","evidence":[{"criterion":"reachability","points":0,"max":25,"evidence":"HTTP 404 in 229ms — JSON-RPC error: \"not found\""},{"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":5,"max":15,"evidence":"description present; no repository URL; version 0.3.1; namespace io.github.402signalhq does NOT match remote host (expected *.402signalhq.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":"2026-09-05T03:00:32.339Z","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."}