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MCP QUEEN

The Graded Registry

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

16258servers indexed
7739remote endpoints
892graded (rolling)
217grade A
59%reachable
388msmedian latency
SortBestWorstJust probedMost toolsFastest
GradeAllA (217)B (3)C (199)D (110)F (363)Provisional
CategoryAll categoriesAI & Agents (258)Other (209)Web & Search (138)Cloud & Infra (67)Productivity (44)Dev & Code (37)Data & Databases (29)Finance & Crypto (27)Communication (21)Media & Design (19)Commerce (17)Security (13)Science & Health (13)

25 matches. Categories are keyword-derived from registry metadata — imperfect by design, deterministic by principle.

#ServerGradeScoreLatencyToolsAuthProbed
1 ai.packmind/mcp-server
Cloud & Infra
 F 15
 810ms — unreachable 07-12 15:16
2 ai.smithery/anirbanbasu-frankfurtermcp
Cloud & Infra
 F 15
 235ms — unreachable 07-12 16:16
3 ai.smithery/anirbanbasu-pymcp
Cloud & Infra
 F 15
 301ms — unreachable 07-12 16:31
4 ai.smithery/callmybot-cookbook-mcp-server
Cloud & Infra
 F 15
 259ms — unreachable 07-12 16:46
5 ai.smithery/callmybot-hello-mcp-server
Cloud & Infra
 F 15
 1102ms — unreachable 07-12 16:46
6 ai.smithery/ChiR24-unreal_mcp_server
Cloud & Infra
 F 15
 270ms — unreachable 07-12 16:01
7 ai.smithery/CryptoCultCurt-appfolio-mcp-server
Cloud & Infra
 F 15
 236ms — unreachable 07-12 16:01
8 ai.smithery/devbrother2024-typescript-mcp-server-boilerplate
Cloud & Infra
 F 15
 229ms — unreachable 07-12 16:46
9 ai.smithery/DynamicEndpoints-powershell-exec-mcp-server
Cloud & Infra
 F 15
 244ms — unreachable 07-12 16:01
10 ai.smithery/eliu243-oura-mcp-server
Cloud & Infra
 F 15
 235ms — unreachable 07-12 16:46
11 ai.smithery/eliu243-oura-mcp-server-2
Cloud & Infra
 F 15
 249ms — unreachable 07-12 16:46
12 ai.smithery/eliu243-oura-mcp-server-eliu
Cloud & Infra
 F 15
 260ms — unreachable 07-12 16:46
13 ai.smithery/jirispilka-actors-mcp-server
Cloud & Infra
 F 15
 251ms — unreachable 07-12 17:03
14 ai.smithery/motorboy1-my-mcp-server
Cloud & Infra
 F 15
 231ms — unreachable 07-12 17:16
15 ai.smithery/Phionx-mcp-hello-server
Cloud & Infra
 F 15
 251ms — unreachable 07-12 16:16
16 ai.smithery/rfdez-pvpc-mcp-server
Cloud & Infra
 F 15
 600ms — unreachable 07-12 17:32
17 ai.smithery/slhad-aha-mcp
Cloud & Infra
 F 15
 227ms — unreachable 07-12 17:32
18 ai.smithery/smithery-ai-cookbook-python-quickstart
Cloud & Infra
 F 15
 249ms — unreachable 07-12 17:32
19 ai.smithery/turnono-datacommons-mcp-server
Cloud & Infra
 F 15
 231ms — unreachable 07-12 17:32
20 ai.buyersense/buyersense
Cloud & Infra
 F 12
 25ms — unreachable 07-12 14:19
21 ai.smithery/fitaf-ai-fitaf-mcp
Cloud & Infra
 F 12
 267ms — unreachable 07-12 17:03
22 ai.smithery/Kryptoskatt-mcp-server
Cloud & Infra
 F 12
 256ms — unreachable 07-12 16:01
23 ai.smithery/ProfessionalWiki-mediawiki-mcp-server
Cloud & Infra
 F 12
 256ms — unreachable 07-12 16:16
24 ai.alpic.test/test-mcp-server
Cloud & Infra
 F 10
 37ms — unreachable 07-12 14:18
25 ai.com.mcp/hapi-mcp
HAPI MCP Server
Cloud & Infra
 F 8
 — — unreachable 07-12 14:19

Methodology

Each server is probed live over streamable HTTP: reachability (25) — does initialize succeed; auth-gated servers earn partial credit only if they advertise WWW-Authenticate so clients can discover OAuth. protocol (15) — valid JSON-RPC handshake; deprecated SSE transport is penalized. tooling (35) — tools/list works, share of tools with descriptions and fully-typed input schemas, median description depth. latency (10) — initialize round-trip. provenance (15) — 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 — probes only.