👑

MCP QUEEN

The MCP Evidence Registry

Operational grades show whether a server connects and describes usable tools. Separate Trust Receipts show what has actually been observed about security and access boundaries, data integrity, citations, advertised claims, response quality, and real-world use.

Use MCP Queen in ChatGPT, Claude, or my agentWhy this registry is different
25516servers indexed
14061remote endpoints
14125graded (rolling)
20157trust observations
4response audits
650grade A
70%reachable
239msmedian latency
SortBestWorstJust probedMost toolsFastest
GradeAllA (650)B (12)C (523)D (202)F (613)Provisional
CategoryAll categoriesOther (516)AI & Agents (353)Cloud & Infra (259)Web & Search (252)Finance & Crypto (145)Productivity (78)Dev & Code (69)Data & Databases (65)Science & Health (58)Communication (55)Commerce (54)Media & Design (52)Security (44)

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

#ServerGradeScoreLatencyToolsProtocol accessProbed
1 com.cryptowhaleinsights/whale-insights
Finance & Crypto
B 88
5331ms 56 open 08-26 10:15
2 com.geospatialsystem/location-profile
Geospatial System — Location Profile
Science & Health
B 88
4114ms 9 open 08-26 12:45
3 co.haveny/california-hoa-law
Other
B 87
668ms 6 open 08-26 05:45
4 com.52choujiang/douyin-insights
SocialDataX 抖音 Douyin MCP
Web & Search
B 87
1298ms 19 open 08-26 06:15
5 com.52choujiang/kuaishou-insights
SocialDataX 快手 Kuaishou MCP
Web & Search
B 87
1323ms 16 open 08-26 06:15
6 com.52choujiang/wechat-channels-insights
SocialDataX 微信视频号 WeChat Channels MCP
Other
B 87
1287ms 16 open 08-26 06:15
7 com.52choujiang/xhs-insights
SocialDataX 小红书 Xiaohongshu XHS RedNote MCP
Web & Search
B 87
914ms 24 open 08-26 06:15
8 com.continueops/continueops-public
ContinueOps Public MCP
Security
B 87
1330ms 7 open 08-26 10:00
9 com.entrida/mcp
Entrida — UK Market Entry
Other
B 87
1152ms 5 open 08-26 12:00
10 com.52choujiang/weibo-insights
SocialDataX 微博 Weibo MCP
Web & Search
B 86
1654ms 19 open 08-26 06:15
11 co.curie/commerce
Curie Commerce
Commerce
B 83
554ms 30 open 08-26 05:45
12 com.emergentphysicslab/waveguard
WaveGuard
Other
B 82
7017ms 19 open 08-26 11:45

Own one of these servers?

Claim your live grade badge for your README, and get an email the moment your grade moves or your endpoint stops answering — find your server above and hit Watch. Free while in beta.

Running an agent?

Ask the queen before you connect to a stranger:
claude mcp add --transport http mcpqueen https://mcpqueen.com/mcp

Compare MCP servers by use case

Evidence-backed shortlists for high-intent decisions—not generated pages for every keyword.

Data & DatabasesWeb & SearchScience & HealthFinance & CryptoDev & Code Security & trust evidence

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.

Trust Receipts are separate from the operational grade. Discovery records advertised security-sensitive capabilities, access caveats, citation promises, and corpus-size claims. Safe, read-only response audits sample eligible tools and test whether calls are usable, whether returned PMIDs/DOIs resolve against authoritative sources, and whether an apparently successful response actually contains an upstream error. Every observation includes its date, source type, sample size where applicable, and methodology version. No synthetic trust score is assigned, and absence of an observation means unaudited—not safe.

Queen Watch

Get an email when a server's grade changes or its endpoint stops answering. Double-opt-in, one-click unwatch, free while in beta.