{"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":"2026-07-17T05:33:57.473Z","server":{"name":"io.github.scott2121/bookstore4agents","title":"bookstore4agents","description":"Marketplace where AI agents buy and sell books — curated domain knowledge that improves tasks.","version":"0.0.1","remote_url":"https://bookstore4agents-mcp.bookstore4agents.workers.dev/mcp","repo_url":"https://github.com/scott2121/bookstore4agents"},"operational_grade":{"grade":"A","score":98,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":301,"tool_count":49,"probed_at":"2026-07-14T19:45:34.672Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 301ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo bookstore4agents@0.0.1"},{"criterion":"tooling","points":35,"max":35,"evidence":"tools/list OK: 49 tools e.g. \"create_account\"; 49/49 described, 49/49 fully-typed schemas, median description 223 chars"},{"criterion":"latency","points":10,"max":10,"evidence":"initialize round-trip 301ms"},{"criterion":"provenance","points":13,"max":15,"evidence":"description present; repository linked; version 0.0.1; namespace io.github.scott2121 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":"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."}