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.
Virustotal
4.5/10VirusTotal MCP — file / URL / domain / IP reputation (BYO key)
Wolfram Alpha
4.5/10Wolfram Alpha MCP — computational, factual, and quantitative queries
Pyrimid
4.5/10Agent-commerce MCP server for x402/USDC payments and affiliate splits on Base.
Airnow
4.5/10EPA AirNow MCP — official US real-time AQI + forecast (free key)
Bis
4.5/10BIS MCP — Bank for International Settlements statistics (no auth)
Chainlist
4.5/10Chainlist MCP — registry of EVM chains
Climatiq
4.5/10Climatiq MCP — carbon footprint calculator with emission factors
Cloudflare Radar
4.5/10Cloudflare Radar MCP — internet observatory (traffic, attacks, BGP, quality)
Coinmarketcap
4.5/10CoinMarketCap MCP — crypto prices, market cap, rankings
Coinpaprika
4.5/10Coinpaprika MCP — alternative crypto data source
Data Gov Sg
4.5/10data.gov.sg MCP — Singapore open data + real-time environment/transport feeds
Datacite
4.5/10DataCite MCP — DOIs for research datasets (free, no auth)
Dblp
4.5/10DBLP MCP — Computer Science bibliography
Dbnomics
4.5/10DBnomics MCP — meta-aggregator over 80+ stats providers
Discogs
4.5/10Discogs MCP — music release / artist / label database
Doaj
4.5/10DOAJ MCP — Directory of Open Access Journals
Ebird
4.5/10eBird MCP — Cornell Lab of Ornithology citizen-science bird observations
Ecb
4.5/10ECB Data Portal MCP — European Central Bank statistical data
Entreprises Fr
4.5/10French Companies MCP — recherche-entreprises.api.gouv.fr
Entso E
4.5/10ENTSO-E Transparency Platform MCP
Estat Japan
4.5/10e-Stat (Japan) MCP — government statistics
Fbi Crime
4.5/10FBI Crime Data Explorer MCP — UCR/NIBRS statistics
Football Data
4.5/10Football-Data.org MCP — soccer competitions, matches, standings
Foursquare
4.5/10Foursquare Places MCP (v3 Places API)
Genius
4.5/10Genius MCP — wraps the Genius API (api.genius.com)
Govinfo
4.5/10GovInfo.gov MCP — full text of US government publications
Govtrack
4.5/10GovTrack MCP — federal US Congress data (free, no auth)
L2Beat
4.5/10L2BEAT MCP — Layer 2 ecosystem analytics
Libretranslate
4.5/10LibreTranslate MCP — open-source machine translation (BYO endpoint)
Malwarebazaar
4.5/10MalwareBazaar MCP — abuse.ch malware sample database (free, key required)
Maven Central
4.5/10Maven Central MCP — Java/JVM artifact registry
Meteostat
4.5/10Meteostat MCP — historical weather from 11k+ stations (no auth)
Mlb Stats
4.5/10MLB Stats API MCP — official MLB statistics (keyless).
Nasa Power
4.5/10NASA POWER MCP — Prediction of Worldwide Energy Resources
Nps
4.5/10NPS MCP — US National Park Service (free key, generous limits)
Nuget
4.5/10NuGet MCP — .NET package registry
Nws
4.5/10NWS MCP — US National Weather Service (no auth)
Odds Api
4.5/10The Odds API MCP — sportsbook odds across 70+ books, 30+ leagues
Omdb
4.5/10OMDb MCP — IMDB-derived movie / TV / episode data (BYO key)
Open Elevation
4.5/10Open-Elevation MCP — terrain elevation by lat/lon (no auth)
Open Library
4.5/10Open Library MCP — Internet Archive's open book metadata
Open Meteo
4.5/10Open-Meteo MCP — weather forecast + historical reanalysis + sister APIs
Openaire
4.5/10OpenAIRE MCP — EU research outputs (publications, datasets, software, projects)
Opencellid
4.5/10OpenCellID MCP — cell tower geolocation database (free with key)
Opensea
4.5/10OpenSea MCP — NFT marketplace data (v2 API)
Openstates
4.5/10OpenStates MCP — bills, legislators, votes in all 50 US states
Overpass
4.5/10OpenStreetMap Overpass MCP — programmatic queries against the OSM database
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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.