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.
Avoindata Fi
4.5/10Finland Open Data (www.avoindata.fi/data/en) CKAN MCP.
Blockscout
4.5/10Blockscout MCP — multi-chain block-explorer aggregate
Bookbrainz
4.5/10BookBrainz MCP — open book metadata (MetaBrainz / sister of MusicBrainz)
Bps Id
4.5/10BPS — Badan Pusat Statistik (Statistics Indonesia) WebAPI MCP.
Bundlephobia
4.5/10Bundlephobia MCP — npm bundle-size analysis
Caniuse
4.5/10caniuse MCP — browser feature support tables
Carbon Interface
4.5/10Carbon Interface MCP — Carbon Interface API (v1)
Cdc
4.5/10CDC MCP — wraps CDC open data via Socrata API (data.cdc.gov)
Coingecko
4.5/10CoinGecko MCP — wraps CoinGecko free API (no auth required)
College Scorecard
4.5/10College Scorecard MCP — US Department of Education College Scorecard API
Conceptnet
4.5/10ConceptNet MCP — open multilingual word/phrase relation graph
Country State City
4.5/10CountryStateCity MCP — wraps CountryStateCity API (api.countrystatecity.in/v1)
Cvr Dk
4.5/10CVR — Det Centrale Virksomhedsregister (Danish Central Business Register) MCP.
Dart Kr
4.5/10DART — Korea's Data Analysis, Retrieval and Transfer System.
Data Batonrouge
4.5/10Baton Rouge Open Data (data.brla.gov) Socrata MCP.
Data Bloomington
4.5/10Bloomington Open Data (data.bloomington.in.gov) Socrata MCP.
Data Cookcounty
4.5/10Cook County Open Data (datacatalog.cookcountyil.gov) Socrata MCP.
Data Delaware
4.5/10Delaware Open Data (data.delaware.gov) Socrata MCP.
Data Energystar
4.5/10ENERGY STAR Open Data (data.energystar.gov) Socrata MCP.
Data Fcc
4.5/10FCC Open Data (opendata.fcc.gov) Socrata MCP.
Data Fortworth
4.5/10Fort Worth Open Data (data.fortworthtexas.gov) Socrata MCP.
Data Fulton
4.5/10Fulton County Open Data (sharefulton.fultoncountyga.gov) Socrata MCP.
Data Gr
4.5/10Greece Open Data (data.gov.gr) CKAN MCP.
Data Howardcounty
4.5/10Howard County Open Data (opendata.howardcountymd.gov) Socrata MCP.
Data Kingcounty
4.5/10King County Open Data (data.kingcounty.gov) Socrata MCP.
Data Lv
4.5/10Latvia Open Data (data.gov.lv) CKAN MCP.
Data Mesa
4.5/10Mesa Open Data (citydata.mesaaz.gov) Socrata MCP.
Data Michigan
4.5/10Michigan Open Data (data.michigan.gov) Socrata MCP.
Data Mo
4.5/10Missouri Open Data (data.mo.gov) Socrata MCP.
Data Nj
4.5/10New Jersey Open Data (data.nj.gov) Socrata MCP.
Data Nl
4.5/10Netherlands Open Data (data.overheid.nl/data) CKAN MCP.
Data Norfolk
4.5/10Norfolk Open Data (data.norfolk.gov) Socrata MCP.
Data Novascotia
4.5/10Nova Scotia Open Data (data.novascotia.ca) Socrata MCP.
Data Oakland
4.5/10Oakland Open Data (data.oaklandca.gov) Socrata MCP.
Data Orlando
4.5/10Orlando Open Data (data.cityoforlando.net) Socrata MCP.
Data Pa
4.5/10Pennsylvania Open Data (data.pa.gov) Socrata MCP.
Data Piercecounty
4.5/10Pierce County Open Data (internal.open.piercecountywa.gov) Socrata MCP.
Data Providence
4.5/10Providence Open Data (data.providenceri.gov) Socrata MCP.
Data Santaclara
4.5/10Santa Clara County Open Data (data.sccgov.org) Socrata MCP.
Data Sonoma
4.5/10Sonoma County Open Data (data.sonomacounty.ca.gov) Socrata MCP.
Data Ua
4.5/10Ukraine Open Data (data.gov.ua) CKAN MCP.
Data Usdot
4.5/10US DOT Open Data (datahub.transportation.gov) Socrata MCP.
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
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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.