{"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":"2026-10-15T13:14:20.584Z","server":{"name":"io.github.pipeworx-io/pubmed","title":"Pubmed","description":"PubMed MCP — wraps the NCBI E-utilities API (biomedical literature, free, no auth)","version":"1.1.4","remote_url":"https://gateway.pipeworx.io/pubmed/mcp","repo_url":"https://github.com/pipeworx-io/mcp-pubmed"},"operational_grade":{"grade":"C","score":65,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":95,"tool_count":null,"probed_at":"2026-10-10T04:30:52.688Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 95ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo pipeworx-gateway@0.1.0"},{"criterion":"tooling","points":0,"max":35,"evidence":"tools/list failed: HTTP 429 {\"code\":-32000,\"message\":\"Discovery rate limit reached (500/day for anonymous). Listing tools, resources and prompts dra"},{"criterion":"latency","points":10,"max":10,"evidence":"initialize round-trip 95ms"},{"criterion":"provenance","points":15,"max":15,"evidence":"description present; repository linked; version 1.1.4; namespace io.github.pipeworx-io 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: Pubmed PubMed MCP — wraps the NCBI E-utilities API (biomedical literature, free, no auth). No response-level citation benchmark has verified this claim yet.","source_type":"live_probe","sample_size":null,"observed_at":"2026-10-10T04:30:52.688Z","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":"2026-10-10T04:30:52.688Z","methodology_version":"trust-v1"},{"dimension":"citation_quality","metric":"identifier_resolvability:search_pubmed","status":"not_testable","value_text":"0/0","evidence":"No PMID or DOI was exposed, so citation validity could not be tested.","source_type":"response_benchmark","sample_size":5,"observed_at":"2026-07-16T18:55:07.705Z","methodology_version":"biomedical-citations-v1"},{"dimension":"citation_quality","metric":"citation_identifier_presence:search_pubmed","status":"not_testable","value_text":"0/5","evidence":"Citation exposure could not be tested because none of 5 benchmark calls returned a successful tool result.","source_type":"response_benchmark","sample_size":5,"observed_at":"2026-07-16T18:55:07.705Z","methodology_version":"biomedical-citations-v1"},{"dimension":"security","metric":"tool_access_boundary:search_pubmed","status":"concern","value_text":"{\"402\":5}","evidence":"Observed HTTP status distribution across 5 actual tool calls: 402×5. Open initialize/tools-list does not imply open data-tool access.","source_type":"response_benchmark","sample_size":5,"observed_at":"2026-07-16T18:55:07.705Z","methodology_version":"biomedical-citations-v1"},{"dimension":"data_integrity","metric":"response_success_rate:search_pubmed","status":"concern","value_text":"0/5","evidence":"0 of 5 controlled read-only calls returned a non-error MCP tool result.","source_type":"response_benchmark","sample_size":5,"observed_at":"2026-07-16T18:55:07.705Z","methodology_version":"biomedical-citations-v1"}],"response_benchmarks":[{"id":2,"tool_name":"search_pubmed","benchmark_pack":"biomedical-citations-v1","samples":5,"successful_samples":0,"samples_with_identifiers":0,"identifiers_found":0,"identifiers_resolved":0,"run_at":"2026-07-16T18:55:07.705Z"}],"reviewed_field_reports":[],"interpretation":"Dimensions are independent; missing evidence is not a pass; field reports are qualitative, moderated and never votes."}