# Carbon Intensity API

**Canonical:** https://apis.io/apis/national-grid/carbon-intensity-api/  
**Provider:** National Grid ESO — https://apis.io/providers/national-grid/  
**Base URL:** https://api.carbonintensity.org.uk  
**Documentation:** https://carbonintensity.org.uk/

Carbon Intensity API is one of 2 APIs that [National Grid ESO](https://apis.io/providers/national-grid/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Carbon Intensity, Electricity, Sustainability, Forecasting, and Generation Mix. The published artifact set on APIs.io includes API documentation and an OpenAPI specification.

Official Carbon Intensity forecast API for Great Britain, developed by NESO in partnership with EDF Europe, University of Oxford, and WWF. Provides 96+ hour ahead national and regional carbon intensity forecasts, generation mix data, and historical carbon intensity statistics across 14 GB regions and by outward postcode.

## Machine-readable artifacts (6)

- **Documentation** — https://carbon-intensity.github.io/api-definitions/
- **OpenAPI** — https://carbon-intensity.github.io/api-definitions/
- **GitHubOrganization** — https://github.com/carbon-intensity
- **TermsOfService** — https://github.com/carbon-intensity/terms
- **License** — https://creativecommons.org/licenses/by/4.0/
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/national-grid/refs/heads/main/apis.yml

## Other National Grid ESO APIs (1)

- [NESO Data Portal API](https://apis.io/apis/national-grid/neso-data-portal-api/)

## Tags

Carbon Intensity, Electricity, Sustainability, Forecasting, Generation Mix, Regional Data

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/national-grid/carbon-intensity-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/national-grid/.