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MCP QUEEN

The Graded Registry

Every remote server in the official MCP registry, probed live and graded with receipts β€” the only MCP index where every grade shows its evidence.

16245servers indexed
7735remote endpoints
622graded (rolling)
160grade A
64%reachable
361msmedian latency
SortBestWorstJust probedMost toolsFastest
GradeAllA (160)B (2)C (156)D (81)F (223)Provisional
CategoryAll categoriesOther (181)Web & Search (114)AI & Agents (109)Cloud & Infra (55)Dev & Code (29)Productivity (26)Finance & Crypto (23)Data & Databases (21)Commerce (15)Media & Design (15)Communication (14)Science & Health (12)Security (8)

8 matches. Categories are keyword-derived from registry metadata β€” imperfect by design, deterministic by principle.

#ServerGradeScoreLatencyToolsAuthProbed
1 ai.thinkneo/control-plane
ThinkNEO Control Plane
Security
A 97
772ms 68 open 07-12 17:47
2 ai.scamverify/mcp
ScamVerify Threat Verification
Security
C prov. 66
314ms β€” auth-wellbehaved 07-12 15:46
3 ai.bluenexus/universal-mcp
BlueNexus Universal MCP
Security
C prov. 62
460ms β€” auth-wellbehaved 07-12 14:18
4 ai.bodenrichtwert/mcp
bodenrichtwert.ai β€” Amtliche Bodenrichtwerte
Security
C prov. 62
61ms β€” auth-wellbehaved 07-12 14:18
5 ai.byteray/byteray-mcp
ByteRay AI
Security
C prov. 62
72ms β€” auth-wellbehaved 07-12 14:19
6 ai.complyhat/compliance
ComplyHat
Security
D prov. 57
1120ms β€” auth-wellbehaved 07-12 14:19
7 ai.rfp/rfp-ai
RFP.ai
Security
D prov. 57
1191ms β€” auth-wellbehaved 07-12 15:31
8 ai.aisecuritygateway/mcp-gateway
AI Security Gateway β€” MCP Gateway
Security
D prov. 49
174ms β€” auth-bare 07-12 14:18

Methodology

Each server is probed live over streamable HTTP: reachability (25) β€” does initialize succeed; auth-gated servers earn partial credit only if they advertise WWW-Authenticate so clients can discover OAuth. protocol (15) β€” valid JSON-RPC handshake; deprecated SSE transport is penalized. tooling (35) β€” tools/list works, share of tools with descriptions and fully-typed input schemas, median description depth. latency (10) β€” initialize round-trip. provenance (15) β€” registry metadata completeness and whether the reverse-DNS namespace actually matches the serving domain. Scores scale to what is verifiable; unverifiable dimensions mark the grade provisional rather than guessing. Every point carries the verbatim observation that earned it. No stars, no votes, no pay-to-rank β€” probes only.