{"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":"2026-07-17T04:43:12.239Z","server":{"name":"io.github.CSOAI-ORG/agent-x402-paywall-mcp","title":null,"description":"Agent x402 Paywall MCP — Coinbase HTTP 402 protocol + on-chain settlement. Agents pay per-call","version":"1.0.10","remote_url":"https://api.meok.ai/v1/a2a/agent-x402-paywall","repo_url":"https://github.com/CSOAI-ORG/agent-x402-paywall-mcp"},"operational_grade":{"grade":"F","score":15,"provisional":0,"reachable":0,"auth_state":"unreachable","latency_ms":227,"tool_count":null,"probed_at":"2026-07-16T14:01:14.143Z","evidence":[{"criterion":"reachability","points":0,"max":25,"evidence":"HTTP 404 in 227ms — JSON-RPC error: \"unknown_mcp\""},{"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":15,"max":15,"evidence":"description present; repository linked; version 1.0.10; namespace io.github.CSOAI-ORG matches endpoint/repo"}],"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":"unaudited","observations":[],"response_benchmarks":[],"reviewed_field_reports":[],"interpretation":"Dimensions are independent; missing evidence is not a pass; field reports are qualitative, moderated and never votes."}