"Open Access" matching MCP connectors:

Finnish Meteorological Institute open data (forecast, observations, warnings)

Open-Meteo MCP — weather forecast + historical reanalysis + sister APIs

Global weather via Open-Meteo: forecast, ERA5 archive, marine, air quality, geocoding, elevation.

Hosted MCP server for solar vitamin D. Six public tools, no account needed: find a city, sun times and golden hour, the synthesis window for a day, the whole year of viable months at a latitude, whether right now is a good moment from live UV, and what a sun session produced. Four more read a signed-in user profile, cities and sun history over OAuth 2.1. Built on NOAA solar geometry, a Madronich clear-sky UV model with ozone, MED by Fitzpatrick skin type, and live Open-Meteo data.

One key for 284 tools across 59 US public-data domains. Resale-safe government and open data.

Keyless open data for 84 German cities: 12 lean read-only MCP tools covering 67 data types.

Search dynamical.org's open STAC catalog of weather & climate datasets (GFS, ECMWF, HRRR).

Location intelligence — geocoding & reverse geocoding (OpenStreetMap), weather forecasts (Open-Meteo), timezone lookup, and Point of Interest search (restaurants, hotels, hospitals, 20+ types).

Flood MCP — wraps Open-Meteo Flood API (free, no auth)

Real-time weather conditions and multi-day forecasts via Open-Meteo — free, no API key required

Climate MCP — wraps Open-Meteo Climate API (free, no auth)

Access UK flood warnings, river levels, water quality, Met Office forecasts, and carbon data

Stay ahead of pollution with our Air Quality MCP. Access real-time air quality data, including

Korean government open data - weather, population, law search via data.go.kr