API ATLAS

Weather & Environment: 77 free APIs

Forecasts, climate, air quality, agriculture and earth observation. Every record below links to its own documentation page.

Listed
77
No auth needed
37
Full profiles
0

APIs in this category

77 of 77
Solematica Compare Italian solar (photovoltaic) installer offers, energy prices (PUN/ARERA) and satellite roof data
Hail History Radar-detected hail history for any US address from NOAA NEXRAD Level-III hail detections, by year
Climatiq Calculate the environmental footprint created by a broad range of emission-generating activities
Meltema Multi-model weather: GFS, ECMWF AIFS/IFS and a 31-member GEFS ensemble, keyless point forecasts
gridcarbon Hourly grid carbon intensity in gCO2eq/kWh for 45 zones in Europe, the US and Great Britain
Mycelium Corporate carbon emissions disclosures (scope 1, 2 and 3), company-reported and estimated
Carbon Interface API to calculate carbon (C02) emissions estimates for common C02 emitting activities
GridVigil Pressure scores, demand, generation mix and alerts for the 10 major U.S. power grids
kanari Real-time worldwide wildfire detections, water bomber tracking and open fire archive
Oikolab 70+ years of global, hourly historical and forecast weather data from NOAA and ECMWF
World Time & Weather Current weather, local time, UTC offset and DST rules for 400 cities as static JSON
Sähkön hinta nyt Finnish and Nordic day-ahead electricity spot prices (15-minute), cheapest hours
UK Carbon Intensity The Official Carbon Intensity API for Great Britain developed by National Grid
Cloverly API calculates the impact of common carbon-intensive activities in real time
WattFigure US electricity rates by state, with appliance and EV charging running costs
NOAA CO-OPS US coastal tides, water levels, currents and meteorological observations
Luchtmeetnet Predicted and actual air quality components for The Netherlands (RIVM)
Terrace Weather Terrace open/closed verdict for restaurants, from the weather forecast
FMI Open Data Finnish weather, sea, climate and radar observations via open WFS
GridHub Live wholesale electricity prices and demand across 25 grid zones
RainViewer Radar data collected from different websites across the Internet
WeatherTotals Measured US snow, rain, hail and aurora totals by state and city
WeatherAPI Weather API with other stuff like Astronomy and Geolocation API
PVGIS EU solar radiation and photovoltaic performance estimates
Website Carbon API to estimate the carbon footprint of loading web pages
NASA POWER Global solar and weather data for energy and agriculture
openSenseMap Data from Personal Weather Stations called senseBoxes
HG Weather Provides weather forecast data for cities in Brazil
Open-Meteo Global weather forecast API for non-commercial use
PVWatts Energy production photovoltaic (PV) energy systems
CO2 Offset API calculates and validates the carbon footprint
wttr.in Weather in your terminal, supports JSON output
Tomorrow Weather API Powered by Proprietary Technology
AQICN Air Quality Index Data for over 1000 cities
AirNow US EPA air quality data and forecasts
KNMI Dutch weather, radar and climate data
7Timer! Weather, especially for Astroweather
Aemet Weather and forecast data from Spain
IPMA Portuguese weather and climate data

Rows marked ↗ have no reference page of their own — the source registry did not provide enough to write one — so they link straight to the provider's documentation.

Authentication

How the 77 records in this category authenticate callers. Values come straight from the source registries; records the sources do not describe are counted as unknown rather than guessed.

  • No authentication 37
  • API key 37
  • User-Agent 2
  • OAuth 1

Also in Weather & Environment: 16 MCP servers

Related topics