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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.

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)

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

#ServerGradeScoreLatencyToolsAuthProbed
1 ai.gemus/gemus
Gemus
Media & Design
C prov. 66
110ms β€” auth-wellbehaved 07-12 14:31
2 app.contendeo/contendeo
Contendeo
Media & Design
C prov. 66
418ms β€” auth-wellbehaved 07-12 18:48
3 ai.arpi/arpi-mcp
ARPI MCP
Media & Design
C prov. 62
603ms β€” auth-wellbehaved 07-12 14:18
4 ai.conveo/conveo
Conveo
Media & Design
C prov. 62
320ms β€” auth-wellbehaved 07-12 14:19
5 ai.dragoneye/mcp
Media & Design
C prov. 62
219ms β€” auth-wellbehaved 07-12 14:19
6 ai.trackradar/trackradar
TrackRadar
Media & Design
C prov. 62
256ms β€” auth-wellbehaved 07-12 18:02
7 ai.viralspin/viralspin
ViralSpin
Media & Design
C prov. 62
298ms β€” auth-wellbehaved 07-12 18:16
8 app.hoaster/hoaster
Media & Design
C prov. 62
1380ms β€” auth-wellbehaved 07-12 18:48
9 app.lightgen/lightgen
Media & Design
C prov. 62
282ms β€” auth-wellbehaved 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.