{"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":"2026-08-21T14:05:21.187Z","server":{"name":"io.github.nock-for-mak/x402-checker","title":"x402 Checker (AI Nock)","description":"Free check; paid report $0.05; check_batch/who/md/headers/json/sanctions/domain/email/bizdays $0.01.","version":"1.7.0","remote_url":"https://x402-checker.nock-for-mak.workers.dev/mcp","repo_url":"https://github.com/nock-for-mak/skills"},"operational_grade":{"grade":"A","score":99,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":60,"tool_count":12,"probed_at":"2026-08-20T08:30:39.956Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 60ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo x402-checker@1.12.0"},{"criterion":"tooling","points":34,"max":35,"evidence":"tools/list OK: 12 tools e.g. \"check\"; 12/12 described, 11/12 fully-typed schemas, median description 184 chars"},{"criterion":"latency","points":10,"max":10,"evidence":"initialize round-trip 60ms"},{"criterion":"provenance","points":15,"max":15,"evidence":"description present; repository linked; version 1.7.0; namespace io.github.nock-for-mak matches endpoint/repo"}],"protocol_access":"open"},"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":"open","evidence":"Live protocol probe observed auth_state=open. This describes discovery/access behavior; it is not by itself a vulnerability finding.","source_type":"live_probe","sample_size":null,"observed_at":"2026-08-20T08:30:39.956Z","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."}