{"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":"2026-08-29T10:44:26.925Z","server":{"name":"io.github.h2-papers/mcp-server","title":"水素分子医学文献データベース — Molecular hydrogen medical literature (H2 Papers)","description":"PubMed molecular-hydrogen medical literature with delivery-aware safety notes inline.","version":"0.1.1","remote_url":"https://h2-papers.org/mcp","repo_url":"https://github.com/h2-papers/h2-papers-mcp-server"},"operational_grade":{"grade":"A","score":100,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":278,"tool_count":6,"probed_at":"2026-08-28T11:15:34.180Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 278ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo h2-papers@0.1.0"},{"criterion":"tooling","points":35,"max":35,"evidence":"tools/list OK: 6 tools e.g. \"search_h2_papers\"; 6/6 described, 6/6 fully-typed schemas, median description 217 chars"},{"criterion":"latency","points":10,"max":10,"evidence":"initialize round-trip 278ms"},{"criterion":"provenance","points":15,"max":15,"evidence":"description present; repository linked; version 0.1.1; namespace io.github.h2-papers 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":"citation_quality","metric":"citation_capability_advertised","status":"unverified","value_text":null,"evidence":"Metadata/tool descriptions advertise citation or evidence capability: 水素分子医学文献データベース — Molecular hydrogen medical literature (H2 Papers) PubMed molecular-hydrogen medical literature with delivery-aware safety notes inline | get_paper Fetch a single paper by PMID. No response-level citation benchmark has verified this claim yet.","source_type":"live_probe","sample_size":null,"observed_at":"2026-08-28T11:15:34.180Z","methodology_version":"trust-v1"},{"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":"2026-08-28T11:15:34.180Z","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."}