{"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":"2026-08-29T11:38:39.815Z","server":{"name":"io.github.Vaquill-AI/vaquill-mcp","title":"Vaquill","description":"Search US federal and 50-state statutes, regulations, constitutions, and court rules.","version":"0.3.0","remote_url":"https://mcp.vaquill.ai/s/_","repo_url":"https://github.com/Vaquill-AI/vaquill-mcp"},"operational_grade":{"grade":"A","score":100,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":183,"tool_count":15,"probed_at":"2026-08-28T02:00:34.986Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 183ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo Vaquill Legal Research@3.4.6"},{"criterion":"tooling","points":35,"max":35,"evidence":"tools/list OK: 15 tools e.g. \"ask_legal_question\"; 15/15 described, 15/15 fully-typed schemas, median description 326 chars"},{"criterion":"latency","points":10,"max":10,"evidence":"initialize round-trip 183ms"},{"criterion":"provenance","points":15,"max":15,"evidence":"description present; repository linked; version 0.2.0; namespace io.github.Vaquill-AI 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: Returns answer with numbered citations | Returns paginated results with text, citation, court, relevance score, snippet, PDF | ast compact **Indian** legal case search returning top 3-5 results with just the essentials: title, citation, court, year, summary excerpt, and PDF link. No response-level citation benchmark has verified this claim yet.","source_type":"live_probe","sample_size":null,"observed_at":"2026-08-28T02:00:34.986Z","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":"2026-08-28T02:00:34.986Z","methodology_version":"trust-v1"},{"dimension":"citation_quality","metric":"identifier_resolvability:ask_legal_question","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":3,"observed_at":"2026-07-18T07:17:21.770Z","methodology_version":"biomedical-citations-v1"},{"dimension":"citation_quality","metric":"citation_identifier_presence:ask_legal_question","status":"concern","value_text":"0/3","evidence":"0 of 3 benchmark queries exposed at least one machine-resolvable PMID or DOI; 0 identifiers observed.","source_type":"response_benchmark","sample_size":3,"observed_at":"2026-07-18T07:17:21.770Z","methodology_version":"biomedical-citations-v1"},{"dimension":"security","metric":"tool_access_boundary:ask_legal_question","status":"observed","value_text":"{\"200\":3}","evidence":"Observed HTTP status distribution across 3 actual tool calls: 200×3. Open initialize/tools-list does not imply open data-tool access.","source_type":"response_benchmark","sample_size":3,"observed_at":"2026-07-18T07:17:21.770Z","methodology_version":"biomedical-citations-v1"},{"dimension":"data_integrity","metric":"response_success_rate:ask_legal_question","status":"pass","value_text":"3/3","evidence":"3 of 3 controlled read-only calls returned a non-error MCP tool result.","source_type":"response_benchmark","sample_size":3,"observed_at":"2026-07-18T07:17:21.770Z","methodology_version":"biomedical-citations-v1"}],"response_benchmarks":[{"id":6,"tool_name":"ask_legal_question","benchmark_pack":"biomedical-citations-v1","samples":3,"successful_samples":3,"samples_with_identifiers":0,"identifiers_found":0,"identifiers_resolved":0,"run_at":"2026-07-18T07:17:21.770Z"}],"reviewed_field_reports":[],"interpretation":"Dimensions are independent; missing evidence is not a pass; field reports are qualitative, moderated and never votes."}