{"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":"2026-08-29T10:45:01.091Z","server":{"name":"io.github.Fabric-Protocol/fabric","title":"Fabric Marketplace","description":"Agent-native marketplace. Bootstrap, list inventory, search, negotiate, and trade via MCP.","version":"0.4.0","remote_url":"https://fabric-api-393345198409.us-west1.run.app/mcp","repo_url":"https://github.com/Fabric-Protocol/fabric"},"operational_grade":{"grade":"A","score":97,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":817,"tool_count":7,"probed_at":"2026-08-27T16:15:35.375Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 817ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2024-11-05, serverInfo fabric-marketplace@0.8.0"},{"criterion":"tooling","points":35,"max":35,"evidence":"tools/list OK: 7 tools e.g. \"fabric_get_meta\"; 7/7 described, 7/7 fully-typed schemas, median description 170 chars"},{"criterion":"latency","points":7,"max":10,"evidence":"initialize round-trip 817ms"},{"criterion":"provenance","points":15,"max":15,"evidence":"description present; repository linked; version 0.4.0; namespace io.github.Fabric-Protocol 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":"security","metric":"sensitive_capabilities_declared","status":"concern","value_text":"fabric_create_identity","evidence":"1 discovered tool(s) advertise potentially state-changing or privileged capabilities. Tool names: fabric_create_identity. Classification is description-based and does not prove exploitability.","source_type":"live_probe","sample_size":1,"observed_at":"2026-08-27T16:15:35.375Z","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":"2026-08-27T16:15:35.375Z","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."}