MCP Servers
Model Context Protocol servers that give AI agents access to tools and data — sourced from the official MCP registry and ranked by GitHub stars.
Omdb
OMDb MCP — IMDB-derived movie / TV / episode data (BYO key)
Ons Uk
UK Office for National Statistics dataset catalogue + Beta JSON API
onthisday
On This Day MCP — wraps byabbe.se/on-this-day (free, no auth)
Ooni
Internet censorship and website reachability: OONI network measurements, keyless
Open Contracting
Open Contracting MCP — international public procurement: government tenders
Open Corporates
OpenCorporates MCP — Global company registry data (free, no auth, rate limited)
Open Elevation
Open-Elevation MCP — terrain elevation by lat/lon (no auth)
Open Fec
OpenFEC MCP — Federal Election Commission campaign finance data
Open Library
Open Library MCP — Internet Archive's open book metadata
Open Meteo
Open-Meteo MCP — weather forecast + historical reanalysis + sister APIs
Open Sanctions
OpenSanctions MCP — Global sanctions and PEP data (free, no auth required)
Openaire
OpenAIRE MCP — EU research outputs (publications, datasets, software, projects)
openalex
OpenAlex MCP — wraps the OpenAlex API (scholarly works, free, no auth)
Openaq
OpenAQ MCP — wraps OpenAQ v2 API (free, no auth required)
Openbeautyfacts
Open Beauty Facts MCP — Open Beauty Facts API (free, no auth, keyless).
Opencages
OpenCage forward + reverse geocoding (free key, 2500/day)
Opencellid
OpenCellID MCP — cell tower geolocation database (free with key)
Openchargemap
Open Charge Map MCP — global EV charging station database (openchargemap.io).
Opencitations
OpenCitations COCI — open-license citation index by DOI
Opencollective
Open Collective public collective/transaction data
Opendata Swiss
opendata.swiss MCP — Switzerland's federal open-data portal (CKAN catalogue).
Opendosm My
data.gov.my / OpenDOSM (Department of Statistics Malaysia) — official Malaysian open-data API.
Openfda
OpenFDA MCP — wraps the openFDA API (free, no auth required)
Openfema
OpenFEMA MCP — US Federal Emergency Management Agency open data.