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.
Dnt Ok
4.3/10DNT 0/1 token, value discarded
Doi Uri
4.3/10doi: URI suffix shape, value discarded
Dot Ok
4.3/10dot.case segment count, value discarded
Dst Au
4.3/10Whether current UTC month is AU DST-heavy
Dst Eu
4.3/10Whether current UTC month is EU DST-heavy
Dxf Ok
4.3/10DXF SECTION count, file discarded
Edn Ok
4.3/10EDN collection count, body discarded
Emailish Ok
4.3/10email-ish local@host shape, value discarded
Emoji N
4.3/10emoji code-point count, text discarded
Expect Ok
4.3/10Expect 100-continue shape, value discarded
Expires Ok
4.3/10Expires HTTP-date shape, value discarded
Farm Len
4.3/10FarmHash hex length, input discarded
Fbx Ok
4.3/10FBX header magic, file discarded
Flake Ok
4.3/10generic flake id digit band, value discarded
Fletcher Len
4.3/10Fletcher-32 hex length, input discarded
Floz Ml
4.3/10US fluid ounces to milliliters, number discarded
Forwarded N
4.3/10Forwarded for= hop count, value discarded
Fps Ms
4.3/10Feet per second to m/s, number discarded
Fy Ok
4.3/10US federal fiscal year from UTC
Fyq Ok
4.3/10US federal fiscal quarter from UTC
G Kg
4.3/10Grams to kilograms, number discarded
Geo Uri
4.3/10geo: URI coordinate shape, value discarded
Geojson Ok
4.3/10GeoJSON feature count, coords discarded
Gltf Ok
4.3/10glTF asset version shape, body discarded
Gost Len
4.3/10GOST R 34.11 hex length, input discarded
Gpc Ok
4.3/10Sec-GPC 1 token, value discarded
Gpx Ok
4.3/10GPX trkpt count, body discarded
Grapheme N
4.3/10grapheme-cluster count, text discarded
Guid Ok
4.3/10Windows GUID braces shape, value discarded
Handle Ok
4.3/10at-handle charset, value discarded
Hashid Ok
4.3/10Hashids alphabet shape, value discarded
Hashtag Ok
4.3/10hashtag token charset, value discarded
Hcl Ok
4.3/10HCL block count, body discarded
Hkdf Len
4.3/10HKDF-SHA256 output length, input discarded
Len
4.3/10HMAC-SHA256 hex length, input discarded
Hz Khz
4.3/10Hertz to kilohertz, number discarded
Ics Ok
4.3/10iCalendar VEVENT count, body discarded
Ident Ok
4.3/10programming identifier charset, value discarded
Idna Ok
4.3/10IDNA label length band, host discarded
If Match Ok
4.3/10If-Match etag list count, value discarded
If Mod Ok
4.3/10If-Modified-Since HTTP-date, value discarded
If None Ok
4.3/10If-None-Match star-or-etag, value discarded
If Unmod Ok
4.3/10If-Unmodified-Since HTTP-date, value discarded
Iges Ok
4.3/10IGES start-section check, file discarded
Info Uri
4.3/10info: URI namespace shape, value discarded
Inhg Kpa
4.3/10inHg to kilopascals, number discarded
Ini Keys Ok
4.3/10INI key count, values discarded
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New servers, score changes, breakages
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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.