The MCP Server Directory
Every Model Context Protocol server, scored on reliability, documentation, maintenance, and adoption. Independent, opinionated, refreshed daily from the official registry.
What this is
The MCP Server Directory is a live, independently maintained index of Model Context Protocol servers published to the official registry. Each server is scored 0–10 on four dimensions: reliability, documentation quality, maintenance velocity, and adoption. The directory is free, updated daily, and built by MegaOne AI.
Pbkdf Len
4.3/10PBKDF2 hex length, input discarded
Pc Ly
4.3/10Parsecs to light-years, number discarded
Pct Ok
4.3/10Percent-triplet count, input discarded
Plist Xml Ok
4.3/10XML plist dict count, body discarded
Plus Ok
4.3/10application/x-www-form-urlencoded plus count, input discarded
Poly Len
4.3/10Poly1305 hex length, input discarded
Proxy Auth
4.3/10Proxy-Authenticate scheme token, value discarded
Pt L
4.3/10US pints to liters, number discarded
Punct N
4.3/10punctuation count, text discarded
Puny Ok
4.3/10Punycode ACE prefix, host discarded
Pushid Ok2
4.3/10Firebase push-id 20-char, value discarded
Q End
4.3/10UTC last day of the current quarter
Qp Ok
4.3/10Quoted-printable soft-break count, input discarded
Qt L
4.3/10US quarts to liters, number discarded
Range Bytes
4.3/10Range bytes start-end shape, value discarded
Real Ip
4.3/10X-Real-IP IPv4/IPv6 shape, value discarded
Refresh Ok
4.3/10Refresh seconds;url shape, value discarded
Retry Ok
4.3/10Retry-After integer-or-date, value discarded
Ok
4.3/10RFC 3986 unreserved charset, input discarded
Ripemd160
4.3/10RIPEMD-160 hex length, input discarded
Ok
4.3/10ROT47 charset transform length, input discarded
Ok
4.3/10ROT5 digit transform length, input discarded
Rpm Hz
4.3/10RPM to hertz, number discarded
Sass Ok
4.3/10Sass indent-rule count, body discarded
Scrypt Len
4.3/10scrypt hex length, input discarded
Scss Ok
4.3/10SCSS rule count, body discarded
Sent N
4.3/10sentence-terminator count, text discarded
Sentence Ok
4.3/10Sentence-case first-cap shape, value discarded
Seq Ok
4.3/10monotonic sequence digit band, value discarded
Len
4.3/10SHA-224 hex length, input discarded
Len
4.3/10SHA-256 hex length, input discarded
256
4.3/10SHA3-256 hex length, input discarded
512
4.3/10SHA3-512 hex length, input discarded
Len
4.3/10SHA-384 hex length, input discarded
Len
4.3/10SHA-512 hex length, input discarded
Shake128
4.3/10SHAKE128 hex length, input discarded
Shake256
4.3/10SHAKE256 hex length, input discarded
Shell Esc
4.3/10POSIX shell quote shape, input discarded
Shortid Ok
4.3/10shortid charset, value discarded
Len
4.3/10SipHash-2-4 hex length, input discarded
Slash N
4.3/10slash-separated token count, value discarded
Len
4.3/10SM3 hex length, input discarded
Snake N
4.3/10snake_case segment count, value discarded
Snowflake Ok
4.3/10Snowflake 63-bit digit shape, value discarded
Sonyflake Ok
4.3/10Sonyflake digit shape, value discarded
Sqid Ok
4.3/10Sqids alphabet shape, value discarded
Step Ok
4.3/10STEP ISO-10303 header, file discarded
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New servers, score changes, breakages
Every Monday: what shipped, what broke, what's worth trying. Five minutes. No filler.
Four dimensions, weighted
- Reliability (30%) — repository present, permissive license, not archived, official status.
- Documentation (20%) — description length, website presence, README quality.
- Maintenance (25%) — how recently the code was pushed; versioning discipline.
- Adoption (25%) — GitHub stars (log-scaled), remote availability, official endorsement.
What is MCP?
MCP stands for Model Context Protocol. It is an open standard introduced by Anthropic in late 2024 that lets AI assistants like Claude connect to external tools, data sources, and services through a common interface. An MCP server is a small program that exposes one capability (file access, a database, an API) to any MCP-compatible AI client.
Where does the data come from?
Every server in this directory is pulled from the official Model Context Protocol Registry at registry.modelcontextprotocol.io. We also enrich each entry with GitHub metadata (stars, last commit, license, primary language) where a repository is linked. The full re-scan runs daily.
How are servers scored?
Each server gets a 0–10 overall score, weighted from four sub-scores: reliability (30%), documentation (20%), maintenance (25%), and adoption (25%). The full methodology is visible on this page under "How scoring works".
Is this affiliated with Anthropic?
No. MegaOne AI is independent. Anthropic created the MCP standard and maintains the reference implementations, but this directory is built separately and rates all servers including Anthropic's own.
How often does the directory update?
The pipeline re-fetches the full registry and re-scores every active server once per day. Individual entries are refreshed whenever a new version is published to the official registry.
Is it free?
Yes. Browsing, filtering, and searching the directory is free. The weekly email briefing is free. There is no account required.