Free Environment APIs

CO2 Offset API calculates and validates the carbon footprint of electricity consumption using the Sustainable Scope 2 framework.

Danish data service Energi provides programmatic access to open energy data from energinet to society via REST API.

GrünstromIndex (Green Power Index) provides real-time and forecast data about the proportion of renewable energy in the German electricity grid.

Luchtmeetnet API provides real-time and predicted air quality measurements from the official Dutch national air quality monitoring network (RIVM).

PM2.5 Open Data Portal provides free access to low-cost PM2.5 (fine particulate matter) sensor data from the LASS community network across Asia, particularly Taiwan.

The UK Carbon Intensity API provides official real-time and forecast carbon intensity data for Great Britain's electricity grid, developed by National Grid.

Website Carbon estimates the carbon footprint of loading any web page by analyzing its data transfer size and hosting type.