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.
Ok
3.9/10CRC8 hex, input discarded
Cron Ok
3.9/10Five-field cron shape
Cron Utc Hint
3.9/10UTC cron five-field shape
Cuid Shape
3.9/10CUID shape check
Ok
3.9/10djb2 hex, input discarded
Doi Shape
3.9/10Check a DOI shape.
Domain Labels
3.9/10Domain label split
Doy Utc
3.9/10UTC day of year
Ean Shape
3.9/10EAN/UPC digit shape
Etag Ok
3.9/10ETag shape, value discarded
Etag Shape
3.9/10ETag shape
Ok
3.9/10FNV-1 hex, input discarded
Ok
3.9/10FNV-1a hex, input discarded
Ft To M
3.9/10Feet to meters
Fx Aed
3.9/10ISO 4217 currency AED.
Fx Aud
3.9/10ISO 4217 currency AUD.
Fx Brl
3.9/10ISO 4217 currency BRL.
Fx Cad
3.9/10ISO 4217 currency CAD.
Fx Chf
3.9/10ISO 4217 currency CHF.
Fx Clp
3.9/10ISO 4217 currency CLP.
Fx Cny
3.9/10ISO 4217 currency CNY.
Fx Gbp
3.9/10ISO 4217 currency GBP.
Fx Inr
3.9/10ISO 4217 currency INR.
Fx Jpy
3.9/10ISO 4217 currency JPY.
Fx Krw
3.9/10ISO 4217 currency KRW.
Fx Mxn
3.9/10ISO 4217 currency MXN.
G To Oz
3.9/10Grams to ounces
Gal To L
3.9/10US gallons to liters
Header Safe
3.9/10Safe header name check
Hex 32
3.9/1032 hex chars
Host Labels
3.9/10Hostname label count
Hr To Sec
3.9/10Hours to seconds
Hsl Ok
3.9/10HSL tuple shape
Http 100
3.9/10Meaning of HTTP 100.
Http 101
3.9/10Meaning of HTTP 101.
Http 102
3.9/10Meaning of HTTP 102.
Http 103
3.9/10Meaning of HTTP 103.
Http 201
3.9/10Meaning of HTTP 201.
Http 202
3.9/10Meaning of HTTP 202.
Http 206
3.9/10Meaning of HTTP 206.
Http 300
3.9/10Meaning of HTTP 300.
Http 303
3.9/10Meaning of HTTP 303.
Http 304
3.9/10Meaning of HTTP 304.
Http 307
3.9/10Meaning of HTTP 307.
Http 308
3.9/10Meaning of HTTP 308.
Http 400
3.9/10Meaning of HTTP 400.
Http 405
3.9/10Meaning of HTTP 405.
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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.