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.
Data Va
4.5/10Virginia Open Data (datahub.va.gov) Socrata MCP.
Data Vermont
4.5/10Vermont Open Data (data.vermont.gov) Socrata MCP.
Data Winnipeg
4.5/10Winnipeg Open Data (data.winnipeg.ca) Socrata MCP.
Datagov
4.5/10Data.gov MCP — wraps Data.gov CKAN API (catalog.data.gov/api/3)
Dbpedia
4.5/10DBpedia MCP — SPARQL + Lookup over Wikipedia-derived structured data
Denue
4.5/10INEGI DENUE MCP — Mexico's directory of economic units (~6M businesses).
Dexscreener
4.5/10DEX Screener MCP — DEX price/liquidity/volume data
Ecos Kr
4.5/10ECOS — Bank of Korea Economic Statistics System.
Eurostat
4.5/10Eurostat MCP — wraps Eurostat Statistical Data API (no auth required)
Federal Register
4.5/10Federal Register MCP — US Federal Register API (free, no auth)
Finnhub
4.5/10Finnhub MCP — wraps Finnhub Stock API (finnhub.io)
Finra
4.5/10FINRA Reg SHO daily short-sale volume.
Fmp
4.5/10Financial Modeling Prep MCP (/stable API; v3 deprecated 2025-08-31).
Frankfurter
4.5/10Frankfurter MCP — wraps Frankfurter API (api.frankfurter.dev)
Fyyd
4.5/10fyyd MCP — open podcast directory
Geonames
4.5/10GeoNames MCP — GeoNames geographical database API
Gistemp
4.5/10GISTEMP MCP — NASA Goddard Institute for Space Studies Surface Temperature
Gnews
4.5/10GNews MCP — Global news search via GNews API (gnews.io)
Govdata De
4.5/10GovData.de MCP — Germany's national open-data portal (CKAN API).
Healthdata
4.5/10HealthData.gov MCP — wraps HealthData.gov CKAN API (free, no auth)
Imdb
4.5/10IMDB MCP — title metadata, ratings, episodes, and crew from IMDB's
Imf
4.5/10IMF MCP — wraps IMF SDMX JSON REST API (dataservices.imf.org)
Imf Portwatch
4.5/10IMF PortWatch MCP — global maritime trade & chokepoint signals (free, no auth)
Ine Pt
4.5/10Statistics Portugal (INE) JSON indicator MCP.
Itunes Search
4.5/10iTunes Search MCP — Apple's public catalog search
Legislation Uk
4.5/10legislation.gov.uk MCP — the UK's official legislation database.
Library Of Congress
4.5/10Library of Congress (loc.gov) MCP — the world's largest library.
Macro Snapshot
4.5/10macro-snapshot MCP — the state of the economy in one call.
Market Spread
4.5/10market-spread MCP — cross-venue prediction-market landscape scanner.
Mediastack
4.5/10Mediastack MCP — wraps Mediastack API (api.mediastack.com/v1)
Mempool Space
4.5/10mempool.space MCP — Bitcoin block explorer + mempool/fee stats
Metals Api
4.5/10Metals API MCP — wraps Metals-API (metals-api.com)
Nasa
4.5/10NASA MCP — wraps NASA Open APIs (api.nasa.gov)
Nrel
4.5/10NREL MCP — wraps the US National Renewable Energy Laboratory developer API
Open Corporates
4.5/10OpenCorporates MCP — Global company registry data (free, no auth, rate limited)
Open Fec
4.5/10OpenFEC MCP — Federal Election Commission campaign finance data
Open Sanctions
4.5/10OpenSanctions MCP — Global sanctions and PEP data (free, no auth required)
Opensky
4.5/10OpenSky MCP — OpenSky Network API (free, no auth for anonymous access)
Osrm
4.5/10OSRM MCP — routing via the public demo server
Packagephobia
4.5/10Packagephobia MCP — install-size analysis for npm packages
Phishtank
4.5/10PhishTank MCP — wraps PhishTank API (checkurl.phishtank.com)
Podatki Si
4.5/10Slovenia Open Data (podatki.gov.si) CKAN MCP.
Propublica Nonprofit
4.5/10ProPublica Nonprofit MCP — ProPublica Nonprofit Explorer API (free, no auth)
Quotes
4.5/10Quotes MCP — citation-grade quote API for public-domain authors.
Rcsb Pdb
4.5/10RCSB PDB MCP — experimentally determined macromolecular structures.
Rentcast
4.5/10Rentcast MCP — wraps Rentcast API (api.rentcast.io/v1)
Rick And Morty
4.5/10Rick and Morty MCP — wraps the Rick and Morty API (free, no auth)
Free · No spam
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.