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.
Arcgis Richmond
4.5/10City of Richmond GIS — Richmond, Virginia open geospatial data (ArcGIS).
Arcgis Roanoke
4.5/10City of Roanoke GIS — Roanoke, Virginia open geospatial data (ArcGIS).
Arcgis Roundrock
4.5/10City of Round Rock GIS — Round Rock, Texas open geospatial data (ArcGIS).
Arcgis Sacramento
4.5/10City of Sacramento GIS — Sacramento, California open geospatial data (ArcGIS).
Arcgis Salem
4.5/10City of Salem GIS — Salem, Oregon open geospatial data (ArcGIS).
Arcgis Sanjose
4.5/10City of San Jose GIS — San Jose, California open geospatial data (ArcGIS).
Arcgis Sarasota
4.5/10City of Sarasota GIS — Sarasota, Florida open geospatial data (ArcGIS).
Arcgis Sarpycounty
4.5/10Sarpy County GIS — Sarpy County, Nebraska open geospatial data (ArcGIS).
Arcgis Seattle
4.5/10City of Seattle GIS — Seattle, Washington open geospatial data (ArcGIS).
Arcgis Southbend
4.5/10City of South Bend GIS — South Bend, Indiana open geospatial data (ArcGIS).
Arcgis Tampa
4.5/10City of Tampa GIS — Tampa, Florida open geospatial data (ArcGIS).
Arcgis Tempe
4.5/10City of Tempe GIS — Tempe, Arizona open geospatial data (ArcGIS).
Arcgis Tigard
4.5/10City of Tigard GIS — Tigard, Oregon open geospatial data (ArcGIS).
Arcgis Toledo
4.5/10City of Toledo GIS — Toledo, Ohio open geospatial data (ArcGIS).
Arcgis Tucson
4.5/10City of Tucson GIS — Tucson, Arizona open geospatial data (ArcGIS).
Arcgis Victoria
4.5/10City of Victoria GIS — Victoria, BC (Canada) open geospatial data (ArcGIS).
Arcgis Vilas
4.5/10Vilas County GIS — Vilas County, Wisconsin open geospatial data (ArcGIS).
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)
Chembl
4.5/10ChEMBL MCP — drug discovery database (EBI).
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.
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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.