API archive entry · source-reported
National Grid ESO
Open data from Great Britain’s Electricity System Operator
Other Environment APIs
These records share a directory category and are ordered by similarity of reported access facts. They are a shortlist, not proof of drop-in compatibility.
CO2 Offset
API calculates and validates the carbon footprint
No auth · HTTPS reported · CORS Unknown
Danish data service Energi
Open energy data from Energinet to society
No auth · HTTPS reported · CORS Unknown
Luchtmeetnet
Predicted and actual air quality components for The Netherlands (RIVM)
No auth · HTTPS reported · CORS Unknown
PM2.5 Open Data Portal
Open low-cost PM2.5 sensor data
No auth · HTTPS reported · CORS Unknown
UK Carbon Intensity
The Official Carbon Intensity API for Great Britain developed by National Grid
No auth · HTTPS reported · CORS Unknown
Website Carbon
API to estimate the carbon footprint of loading web pages
No auth · HTTPS reported · CORS Unknown
How to compare them
Coverage
Compare exact endpoints, fields, geography, history, and update frequency.
Operating cost
Model request volume, caching, overages, support, and migration cost.
Integration risk
Test auth, errors, pagination, latency, versioning, and outage behavior.
Data rights
Review attribution, redistribution, retention, privacy, and commercial-use terms.
Source reference
This page separates source-reported facts from questions that need live provider verification.