{"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":"2026-10-13T12:18:05.348Z","server":{"name":"io.github.Vortx-AI/emem","title":"emem, the verifiable memory protocol for the physical world","description":"Shared, verifiable memory for machines and AI. Encode where data lives; decode with any AI.","version":"2.4.3","remote_url":"https://emem.dev/mcp","repo_url":"https://github.com/Vortx-AI/emem"},"operational_grade":{"grade":"A","score":97,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":530,"tool_count":18,"probed_at":"2026-10-10T10:46:06.888Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 530ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo emem@2.4.2"},{"criterion":"tooling","points":35,"max":35,"evidence":"tools/list OK: 18 tools e.g. \"emem_entity\"; 18/18 described, 18/18 fully-typed schemas, median description 1170 chars"},{"criterion":"latency","points":7,"max":10,"evidence":"initialize round-trip 530ms"},{"criterion":"provenance","points":15,"max":15,"evidence":"description present; repository linked; version 2.4.2; namespace io.github.Vortx-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 an `entity_token` (`emem:entity:<entity_cid>`) plus a signed receipt that attests how the reference resolved | Pass `determinist emem_memory_token Mint a citation handle, `emem:fact:<cell64>:<fact_cid>` (or `:<state_cid>`), that any agent or LLM resolves to the byte-identical signed object | em_echo_verify` before you publis emem_memory_token_resolve Parse a `emem:fact:<cell64>:<fact_cid>` citation handle and return the reading it cites. No response-level citation benchmark has verified this claim yet.","source_type":"live_probe","sample_size":null,"observed_at":"2026-10-10T10:46:06.888Z","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":"2026-10-10T10:46:06.888Z","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."}