{"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":"2026-08-31T04:15:00.995Z","server":{"name":"io.github.vmalyshev1/vat-support","title":"vat.support VAT Compliance","description":"EU/UK VAT compliance for AI agents: number validation, rate lookups, reverse-charge checks.","version":"1.0.0","remote_url":"https://snapshot.vat.support/api/mcp","repo_url":null},"operational_grade":{"grade":"A","score":90,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":387,"tool_count":5,"probed_at":"2026-08-30T21:45:51.903Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 387ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2024-11-05, serverInfo vat.support@1.0.0"},{"criterion":"tooling","points":35,"max":35,"evidence":"tools/list OK: 5 tools e.g. \"reverse_charge_certificate\"; 5/5 described, 5/5 fully-typed schemas, median description 124 chars"},{"criterion":"latency","points":10,"max":10,"evidence":"initialize round-trip 387ms"},{"criterion":"provenance","points":5,"max":15,"evidence":"description present; no repository URL; version 1.0.0; namespace io.github.vmalyshev1 does NOT match remote host (expected *.vmalyshev1.github.io)"}],"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 compliance score (0–100), risk band, itemised findings with Article citations, and source verification per finding. No response-level citation benchmark has verified this claim yet.","source_type":"live_probe","sample_size":null,"observed_at":"2026-08-30T21:45:51.903Z","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":"2026-08-30T21:45:51.903Z","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."}