Solcast API delivers solar power and radiation forecasts and measurements, plus temperature - anywhere in the world. Authentication is available via Key. With the API, developers can obtain PV power output forecast, access solar radiation estimates, access real-time data, and apply analytics for individualized forecasts.

Safecast is an international open citizen science organization that specializes in sharing information about environmental radiation and other pollutants. Safecast maintains the largest dataset of background radiation measurements, and is currently developing a network of sensors that monitor PM1.0, PM2.5, Carbon Monoxide, Nitrogen Dioxide, Ozone and Methane. The Safecast API is used to query and add information to the Safecast dataset. This API uses HTTP for requests, and JSON for responses.

The OrbitalViews API offers an agriculture interface with information related to elevation, water needs, solar radiation and more. The latest version supports NDVI, NDWI, Albedo, LAI, CIR, RGB and Biomass Variance maps. Developers can also expose their own data or algorithms for seamless integration with this API. API Keys are required for external requests.

The WeatherOps Climate Analysis API retrieves degree days, precipitation, relative humidity, solar radiation, temperature, wind, evapotranspiration, and climatology data in JSON format. Responses can be about historical, current, or forecast data for any area, such as an agriculture field, urban area, or utility service area, with time series specifications. WeatherOps tools are powered by DTN to provide businesses with actionable insights.

This API provides on a monthly basis, the global mean surface temperature anomaly from 1880.04 to present (in celsius).

This MetOcean API provides access to MetOcean weather Forecast data such as sea surface temperature, visibility, wave height, period and direction of total sea state and swell, wind speed and direction. air temperature, and ocean surface currents. This REST API accepts location or a series of sites as query parameters to extract data from available models with data that is returned in CF-JSON format. MetOcean Solutions is a science-based consultancy that offers specialist numerical modeling and analytical services in meteorology and oceanography.

The Weatherbit Air Quality Forecast returns hourly forecasted air quality conditions and air quality index score. It includes data on the 6 major surface pollutants - PM 2.5, PM 10, CO, SO2, NO2, and O3.

The Weatherbit current Air Quality API returns live air quality conditions, and air quality index scores for any point in the world. It also returns data on the 6 major surface pollutants - PM 2.5, PM 10, CO, SO2, NO2, and O3.

The service provides estimates of solar energy potential for sites in Africa, the region surrounding the Mediterranean Sea, and the central part of the Atlantic Ocean. It refers to a database of solar radiation estimates based on images taken over a 20-year period by the Meteosat satellites. In addition to estimates of solar energy production, the data may provide useful input for climate studies. API methods support submission of location coordinates to retrieve estimated values for solar irradiance there. Each request can specify either a single geographic point or multiple points. Separate services are available for the period 1985-2005 and 2004-2005.

The service from the Korean Meteorological Administration (KMA) provides a shared database of weather observations, measurements, and forecasts. It reports any special warnings about weather conditions in the area along with reports on lightning activity, radar and satellite imagery, weather charts, and related resources. Data services are provided to partner agencies, businesses, and the general public. API methods support retrieval of forecast data, warnings about extraordinary conditions, readings from surface observation stations, and satellite radar data.