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.
Iconify
4.5/10Iconify MCP — wraps the Iconify public API (free, no auth)
Imgflip
4.5/10Imgflip MCP — wraps Imgflip API (free, no auth for template listing)
Ipinfo
4.5/10IPInfo MCP — wraps ipinfo.io (free tier, no auth required for basic usage)
Iplookup
4.5/10IP Lookup MCP — ip-api.com (free, no auth for basic usage)
Jikan
4.5/10Jikan MCP — wraps the Jikan v4 API (anime/manga data, free, no auth)
Jokes
4.5/10Jokes MCP — wraps JokeAPI v2 (free, no auth)
Launches
4.5/10Launches MCP — wraps Launch Library 2 API (ll.thespacedevs.com, free, no auth)
Lorem
4.5/10Lorem MCP — wraps loripsum.net (free, no auth)
Marine
4.5/10Marine MCP — wraps marine-api.open-meteo.com (free, no auth)
Mathjs
4.5/10Math.js MCP — wraps the mathjs.org API (free, no auth)
Mhw
4.5/10MHW MCP — Monster Hunter World data (mhw-db.com, free, no auth)
Microlink
4.5/10Microlink MCP — wraps Microlink API (free tier, no auth required)
Musicbrainz
4.5/10MusicBrainz MCP — wraps MusicBrainz Web Service v2 (free, no auth)
Newton
4.5/10Newton MCP — wraps the Newton math solver API (free, no auth)
Nobel
4.5/10Nobel MCP — wraps the Nobel Prize API v2 (free, no auth)
Nominatim
4.5/10Nominatim MCP — wraps OpenStreetMap Nominatim geocoding API (free, no auth)
Npm
4.5/10npm MCP — wraps the npm Registry API (free, no auth)
Numbersapi
4.5/10NumbersAPI MCP — wraps numbersapi.com (free, no auth)
Nutrition
4.5/10Nutrition MCP — wraps Open Food Facts API (free, no auth)
Onthisday
4.5/10On This Day MCP — wraps byabbe.se/on-this-day (free, no auth)
Openalex
4.5/10OpenAlex MCP — wraps the OpenAlex API (scholarly works, free, no auth)
Patents
4.5/10Patents MCP — wraps the USPTO Open Data Portal (ODP) Patent File Wrapper API
Poetry
4.5/10Poetry MCP — PoetryDB API (free, no auth)
Pokemon
4.5/10Pokemon MCP — wraps PokéAPI (free, no auth required)
Postcodes
4.5/10Postcodes MCP — wraps postcodes.io UK postcode API (free, no auth)
Qrcode
4.5/10QR Code MCP — wraps api.qrserver.com (free, no auth)
Radio
4.5/10Radio MCP — wraps Radio Browser API (free, no auth)
Randomuser
4.5/10Random User MCP — wraps randomuser.me (free, no auth)
Recipes
4.5/10Recipes MCP — wraps TheMealDB API (free tier, no auth)
Rickmorty
4.5/10Rick and Morty MCP — wraps The Rick and Morty API (free, no auth)
Science
4.5/10Science MCP — free science data APIs
Sec
4.5/10SEC MCP — SEC EDGAR public APIs (free, no auth)
Spacenews
4.5/10Spacenews MCP — wraps the Spaceflight News API v4 (free, no auth)
Spacex
4.5/10SpaceX MCP — wraps SpaceX API v4 (free, no auth)
Sports
4.5/10Sports MCP — wraps TheSportsDB API (free tier, test key 3, no auth required)
Sunrisesunset
4.5/10Sunrise-Sunset MCP — wraps the sunrisesunset.io API (free, no auth)
Superhero
4.5/10Superhero MCP — wraps akabab.github.io/superhero-api (free, no auth)
Swapi
4.5/10SWAPI MCP — wraps the Star Wars API (swapi.dev, free, no auth)
Swisstransport
4.5/10Swiss Transport MCP — wraps Transport Open Data API (free, no auth)
Tarot
4.5/10Tarot MCP — wraps tarotapi.dev (free, no auth)
Timezone
4.5/10Timezone MCP — wraps WorldTimeAPI (free, no auth)
Translate
4.5/10Translate MCP — wraps LibreTranslate API (https://libretranslate.com/)
Treasury
4.5/10Treasury MCP — US Treasury Fiscal Data public API (free, no auth)
Ukpolice
4.5/10UK Police MCP — wraps the UK Police Data API (free, no auth)
Universities
4.5/10Universities MCP — Hipolabs Universities API (free, no auth)
Uselessfacts
4.5/10Uselessfacts MCP — wraps uselessfacts.jsph.pl API (free, no auth)
Videogames
4.5/10Videogames MCP — wraps Free-to-Play Games API (freetogame.com, free, no auth)
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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.