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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.

16246servers indexed
7735remote endpoints
742graded (rolling)
206grade A
68%reachable
384msmedian latency
SortBestWorstJust probedMost toolsFastest
GradeAllA (206)B (3)C (194)D (105)F (234)Provisional
CategoryAll categoriesOther (202)Web & Search (136)AI & Agents (127)Cloud & Infra (65)Productivity (42)Dev & Code (34)Data & Databases (28)Finance & Crypto (26)Communication (21)Media & Design (19)Commerce (17)Science & Health (13)Security (12)

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

#ServerGradeScoreLatencyToolsAuthProbed
1 ai.scamverify/mcp
ScamVerify Threat Verification
Security
C prov. 66
314ms β€” auth-wellbehaved 07-12 15:46
2 ai.bluenexus/universal-mcp
BlueNexus Universal MCP
Security
C prov. 62
460ms β€” auth-wellbehaved 07-12 14:18
3 ai.bodenrichtwert/mcp
bodenrichtwert.ai β€” Amtliche Bodenrichtwerte
Security
C prov. 62
61ms β€” auth-wellbehaved 07-12 14:18
4 ai.byteray/byteray-mcp
ByteRay AI
Security
C prov. 62
72ms β€” auth-wellbehaved 07-12 14:19
5 ai.complyhat/compliance
ComplyHat
Security
D prov. 57
1120ms β€” auth-wellbehaved 07-12 14:19
6 ai.rfp/rfp-ai
RFP.ai
Security
D prov. 57
1191ms β€” auth-wellbehaved 07-12 15:31
7 app.clearpolicy/clearpolicy
ClearPolicy
Security
D prov. 57
756ms β€” auth-wellbehaved 07-12 18:48
8 app.openclip/openclip
OpenClip
Security
D prov. 57
746ms β€” auth-wellbehaved 07-12 19:03
9 ai.aisecuritygateway/mcp-gateway
AI Security Gateway β€” MCP Gateway
Security
D prov. 49
174ms β€” auth-bare 07-12 14:18
10 app.locize.mcp/server
Locize
Security
D prov. 45
694ms β€” auth-bare 07-12 19:03

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.