A
AirNowdocs.airnowapi.org
US EPA air quality data and forecasts
API keyHTTPSCORS
Environment
30 APIs
Environment APIs report air quality, pollen, the carbon intensity of the power grid, emissions factors and solar energy potential. They are used in climate dashboards, carbon calculators and apps that shift work to cleaner hours. Check the measurement source, update frequency and regional coverage, since many datasets cover a single country.
UK Carbon Intensity forecasts grid emissions for Great Britain without a key, and OpenAQ aggregates air quality readings from many countries. AirNow covers US air quality, Climatiq and Carbon Interface estimate emissions with an API key, and PVGIS estimates solar panel output with no key required.
BreezoMeter Pollendocs.breezometer.com
Daily Forecast pollen conditions data for a specific location
API keyHTTPSCORS ?
Carbon Interfacedocs.carboninterface.com
API to calculate carbon (C02) emissions estimates for common C02 emitting activities
API keyHTTPSCORS
Climatiqdocs.climatiq.io
Calculate the environmental footprint created by a broad range of emission-generating activities
API keyHTTPSCORS
Cloverlycloverly.com
API calculates the impact of common carbon-intensive activities in real time
API keyHTTPSCORS ?
CO2 Offsetco2offset.io
API calculates and validates the carbon footprint
No key HTTPSCORS ?
Danish data service Energienergidataservice.dk
Open energy data from Energinet to society
No key HTTPSCORS ?
EIA Open Dataeia.gov
US energy statistics: electricity, petroleum, gas
API keyHTTPSCORS ?
GridHubgrid-hub.app
Live wholesale electricity prices and demand across 25 grid zones
API keyHTTPSCORS
GridVigilgridvigil.com
Pressure scores, demand, generation mix and alerts for the 10 major U.S. power grids
No key HTTPSCORS
GrünstromIndexgruenstromindex.de
Green Power Index for Germany (Grünstromindex/GSI)
No key HTTP onlyCORS
IQAiriqair.com
Air quality and weather data
API keyHTTPSCORS ?
kanarikanari.io
Real-time worldwide wildfire detections, water bomber tracking and open fire archive
No key HTTPSCORS
Luchtmeetnetapi-docs.luchtmeetnet.nl
Predicted and actual air quality components for The Netherlands (RIVM)
No key HTTPSCORS ?
M
Myceliumapi.mycelium.global
Corporate carbon emissions disclosures (scope 1, 2 and 3), company-reported and estimated
API keyHTTPSCORS ?
N
National Grid ESOdata.nationalgrideso.com
Open data from Great Britain’s Electricity System Operator
No key HTTPSCORS ?
OpenAQdocs.openaq.org
Open air quality data
API keyHTTPSCORS ?
Open-Meteoopen-meteo.com
Free weather API for non-commercial use
No key HTTPSCORS
PM2.5 Open Data Portalpm25.lass-net.org
Open low-cost PM2.5 sensor data
No key HTTPSCORS ?
P
PM25.inpm25.in
Air quality of China
API keyHTTP onlyCORS ?
PVGISjoint-research-centre.ec.europa.eu
EU solar radiation and photovoltaic performance estimates
No key HTTPSNo CORS
P
PVWattsdeveloper.nrel.gov
Energy production photovoltaic (PV) energy systems
API keyHTTPSCORS ?
sensor.communitygithub.com
Community air quality sensor network data worldwide
User-AgentHTTPSCORS
Solematicasolematica.it
Compare Italian solar (photovoltaic) installer offers, energy prices (PUN/ARERA) and satellite roof data
No key HTTPSNo CORS
Srp Energysrpenergy-api-client-python.readthedocs.io
Hourly usage energy report for Srp customers
API keyHTTPSNo CORS
SustainMetricssustainmetrics.net
18,000+ GHG emission factors from DEFRA, EPA, ADEME, Ember
API keyHTTPSCORS
Sähkön hinta nytxn--shknhintanyt-gcb8w.org
Finnish and Nordic day-ahead electricity spot prices (15-minute), cheapest hours
No key HTTPSCORS
U
UK Carbon Intensitycarbon-intensity.github.io
The Official Carbon Intensity API for Great Britain developed by National Grid
No key HTTPSCORS ?
W
WattFigureapi.wattfigure.com
US electricity rates by state, with appliance and EV charging running costs
No key HTTPSCORS
W
Website Carbonapi.websitecarbon.com
API to estimate the carbon footprint of loading web pages
No key HTTPSCORS ?