{"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":"2026-10-13T13:57:39.373Z","server":{"name":"io.github.cyanheads/pubmed-mcp-server","title":null,"description":"Search PubMed/Europe PMC, fetch articles and full text (PMC/EPMC/Unpaywall), citations, MeSH terms.","version":"2.10.21","remote_url":"https://pubmed.caseyjhand.com/mcp","repo_url":"https://github.com/cyanheads/pubmed-mcp-server"},"operational_grade":{"grade":"A","score":100,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":339,"tool_count":11,"probed_at":"2026-10-10T18:45:58.679Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 339ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo pubmed-mcp-server@2.10.21"},{"criterion":"tooling","points":35,"max":35,"evidence":"tools/list OK: 11 tools e.g. \"pubmed_search_articles\"; 11/11 described, 11/11 fully-typed schemas, median description 435 chars"},{"criterion":"latency","points":10,"max":10,"evidence":"initialize round-trip 339ms"},{"criterion":"provenance","points":15,"max":15,"evidence":"description present; repository linked; version 2.10.21; namespace io.github.cyanheads 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":"claim_verification","metric":"advertised_corpus_scale","status":"unverified","value_text":"25 records","evidence":"Advertised corpus-size expression(s) found in public metadata/tool descriptions: 25 records. Black-box discovery does not establish corpus coverage; a manifest or sampled benchmark is required.","source_type":"live_probe","sample_size":null,"observed_at":"2026-10-10T18:45:58.679Z","methodology_version":"trust-v1"},{"dimension":"citation_quality","metric":"citation_capability_advertised","status":"unverified","value_text":null,"evidence":"Metadata/tool descriptions advertise citation or evidence capability: Search PubMed/Europe PMC, fetch articles and full text (PMC/EPMC/Unpaywall), citations, MeSH terms | pubmed_search_articles Search PubMed with full query syntax, filters, and date ranges | pubmed_fetch_articles Fetch full article metadata by PubMed IDs. No response-level citation benchmark has verified this claim yet.","source_type":"live_probe","sample_size":null,"observed_at":"2026-10-10T18:45:58.679Z","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":"2026-10-10T18:45:58.679Z","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."}