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.
Ofgem
Ofgem energy data: the UK energy regulator's published statistics on the domestic price cap and…
Ofr Funding
OFR Short-Term Funding Monitor API — data.financialresearch.gov/v1, keyless,
Omdb
OMDb MCP — IMDB-derived movie / TV / episode data (BYO key)
Oneinfo Storage
Italian regulated disclosures direct from 1INFO — keyless, same-day-fresh.
Onet
O*NET MCP — wraps the O*NET Web Services (US DOL) occupation taxonomy
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
OONI MCP — internet censorship & website reachability measurements from the
Open Contracting
Open Contracting MCP — international public procurement: government tenders
Open Corporates
OpenCorporates MCP — Global company registry data (BYO key)
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.
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 — global air-quality measurements via the OpenAQ v3 API.
Openbeautyfacts
Open Beauty Facts MCP — Open Beauty Facts API (free, no auth, keyless).
Opencellid
OpenCellID MCP — cell tower geolocation database (free with key)
Openchargemap
Open Charge Map MCP — global EV charging station database (openchargemap.io).
Opencitations
OpenCitations MCP — citation index (COCI + general Index API).
Opendata Swiss
opendata.swiss MCP — Switzerland's federal open-data portal (CKAN catalogue).