{"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":"2026-10-22T02:02:17.442Z","server":{"name":"dev.agentdiet/mcp-gateway","title":"Imperium MCP Gateway — Universal 490+ Tool Discovery, Safe-Proxy & Router","description":"Single-connection MCP & A2A gateway indexing 490+ verified tools with x402 & MPP settlement.","version":"7.0.17","remote_url":"https://mcp-gateway.agentdiet.dev/mcp","repo_url":"https://github.com/robertoyanguas-ops/assay"},"operational_grade":{"grade":"A","score":100,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":286,"tool_count":4,"probed_at":"2026-10-21T22:45:58.443Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 286ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo x402-broker-mcp@7.0.16"},{"criterion":"tooling","points":35,"max":35,"evidence":"tools/list OK: 4 tools e.g. \"search_x402_mcp_marketplace\"; 4/4 described, 4/4 fully-typed schemas, median description 1031 chars"},{"criterion":"latency","points":10,"max":10,"evidence":"initialize round-trip 286ms"},{"criterion":"provenance","points":15,"max":15,"evidence":"description present; repository linked; version 7.0.17; namespace dev.agentdiet 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":"search_x402_mcp_marketplace, execute_marketplace_tool, execute_workflow_bundle, get_agent_wallet_status","evidence":"4 discovered tool(s) advertise potentially state-changing or privileged capabilities. Tool names: search_x402_mcp_marketplace, execute_marketplace_tool, execute_workflow_bundle, get_agent_wallet_status. Classification is description-based and does not prove exploitability.","source_type":"live_probe","sample_size":4,"observed_at":"2026-10-21T22:45:58.443Z","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":"2026-10-21T22:45:58.443Z","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."}