Carbon Intensity API

The Carbon Intensity API is the official carbon intensity forecasting service for Great Britain, developed by the National Energy System Operator (NESO) in partnership with EDF, the University of Oxford, and WWF. It provides real-time, forecast, and historical carbon intensity data alongside generation mix information for GB electricity, with 96+ hour forecasts and 30-minute temporal resolution across 14 regional DNO boundaries. The API is publicly accessible with no authentication required and is licensed under CC BY 4.0.

Carbon Intensity API publishes 5 API contracts indexed on the APIs.io network, including Factors API, Generation Mix API, National Intensity API, and 2 more. Tagged areas include Carbon Intensity, Environment, Energy, Electricity, and Climate.

The Carbon Intensity API catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Carbon Intensity API’s developer surface includes documentation and 12 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

30.7/100 thin ▬ flat Agent 24/100 agent aware Front door AI 4/6 moderate Heartbeat 0/100 dormant saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreeOpen⚡ Free to try

1 published contract

Carbon Intensity Environment Energy Electricity ClimateGreat BritainNational Grid

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 30.7/100 · thin

Contract Quality 12.8 / 21

Developer Ergonomics 1.6 / 17

Access Clarity 2.7 / 17

Operational Transparency 1.2 / 11

Contract Governance 2.4 / 10

Discoverability 5.6 / 9

Regulatory Posture 1.8 / 15

Agent readiness — 24/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 4 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Energy & Utilities regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

7 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Developer Ergonomics scores 9.5 — up to +18.1 composite points
Access Clarity scores 15.8 — up to +16.8 composite points
Operational Transparency scores 10.5 — up to +11.6 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/carbon-intensity/apis.yml: open an issue on github.com/api-evangelist/carbon-intensity to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Energy and Utilities	long-tail	2.5 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 5

Individual APIs this provider publishes, each with its own machine-readable definition.

Carbon Intensity API Factors API

Carbon intensity factors by fuel type

Carbon Intensity API Generation Mix API

Electricity generation mix data (beta)

Carbon Intensity API National Intensity API

National carbon intensity data for Great Britain

Carbon Intensity API Regional API

Regional carbon intensity and generation mix data (beta)

Carbon Intensity API Statistics API

Carbon intensity statistics and aggregations

Open Collections 5

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Carbon Intensity Factors API

OPEN COLLECTION

Carbon Intensity Factors Generation Mix API

OPEN COLLECTION

Carbon Intensity Factors National Intensity API

OPEN COLLECTION

Carbon Intensity Factors Regional API

OPEN COLLECTION

Carbon Intensity Factors Statistics API

OPEN COLLECTION

Carbon Intensity API pricing

Not yet checked against Carbon Intensity API's own pricing page. Compiled by API Evangelist on 2026-06-13; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free free	Free

Plan details, limits and sources →

Rate limits

Public Free Tier Rate Limit: 100 requests per minute
Intensity Date Range Constraint: 14 days per query
Statistics Date Range Constraint: 30 days per query

Compiled by API Evangelist, not yet checked against Carbon Intensity API's documentation. Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Carbon Intensity Plans

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Carbon Intensity Rate Limits

3 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Carbon Intensity API

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Carbon Intensity Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Carbon Intensity Context

0 classes · 35 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Carbon Intensity API — jsonschema rules

5 rules · 3 warnings 2 info

SPECTRAL

JSON Schema 4

Standalone JSON Schema definitions for this provider's data models.

Generation Mix

3 properties

JSON SCHEMA

Carbon Intensity Factors

14 properties

JSON SCHEMA

Intensity Period

3 properties

JSON SCHEMA

Regional Intensity

7 properties

JSON SCHEMA

Examples 5

Example request and response payloads for these APIs.

Get Current Intensity

4 fields

EXAMPLE

Get Generation Mix

4 fields

EXAMPLE

Get Intensity Factors

4 fields

EXAMPLE

Get Intensity Stats

4 fields

EXAMPLE

Get Regional Intensity

4 fields

EXAMPLE

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Carbon Intensity Domain Security

TLSv1.3

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Carbon Intensity Agentic Access

27 operations

27 operations · 0 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

IssueTracker

IssueTracker

Commercial 4

Pricing, plans, and the legal terms of use

Plans

FinOps

TermsOfService

License

Company 2

The organization behind the API

Website

Website

LinkedIn

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

aid: carbon-intensity
deliveryModel:
  model: saas
  license_evidence:
    not_product:
    - carbon-intensity/api-definitions
  open_source: unknown
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: low
  source:
  - openapi
  - pricing
  - repository-not-product
  generated: '2026-09-25'
  method: derived
accessModel:
  pricing: free
  onboarding: open
  trial: false
  try_now: true
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Free · Open access
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/carbon-intensity.png
url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/apis.yml
name: Carbon Intensity API
description: The Carbon Intensity API is the official carbon intensity forecasting service for Great Britain, developed by
  the National Energy System Operator (NESO) in partnership with EDF, the University of Oxford, and WWF. It provides real-time,
  forecast, and historical carbon intensity data alongside generation mix information for GB electricity, with 96+ hour forecasts
  and 30-minute temporal resolution across 14 regional DNO boundaries. The API is publicly accessible with no authentication
  required and is licensed under CC BY 4.0.
specificationVersion: '0.23'
created: '2026-06-13'
modified: '2026-06-13'
tags:
- Carbon Intensity
- Environment
- Energy
- Electricity
- Climate
- Great Britain
- National Grid
apis:
- aid: carbon-intensity:carbon-intensity-factors-api
  name: Carbon Intensity API Factors API
  description: Carbon intensity factors by fuel type
  humanURL: https://carbonintensity.org.uk/
  baseURL: https://api.carbonintensity.org.uk
  tags:
  - Factors
  properties:
  - type: OpenAPI
    url: openapi/carbon-intensity-factors-api-openapi.yml
  - type: Documentation
    url: https://carbon-intensity.github.io/api-definitions/
  - type: GitHubRepository
    url: https://github.com/carbon-intensity/api-definitions
  - type: TermsOfService
    url: https://github.com/carbon-intensity/terms
  - type: License
    url: https://creativecommons.org/licenses/by/4.0/
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/plans/carbon-intensity-plans.yml
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/rate-limits/carbon-intensity-rate-limits.yml
  - type: FinOps
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/finops/carbon-intensity-finops.yml
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-schema/intensity-period.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-schema/generation-mix.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-schema/regional-intensity.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-schema/intensity-factors.json
  - type: Vocabulary
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/vocabulary/carbon-intensity-vocabulary.yml
  - type: JSONLDContext
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-ld/carbon-intensity-context.jsonld
- aid: carbon-intensity:carbon-intensity-generation-mix-api
  name: Carbon Intensity API Generation Mix API
  description: Electricity generation mix data (beta)
  humanURL: https://carbonintensity.org.uk/
  baseURL: https://api.carbonintensity.org.uk
  tags:
  - Generation Mix
  properties:
  - type: OpenAPI
    url: openapi/carbon-intensity-generation-mix-api-openapi.yml
  - type: Documentation
    url: https://carbon-intensity.github.io/api-definitions/
  - type: GitHubRepository
    url: https://github.com/carbon-intensity/api-definitions
  - type: TermsOfService
    url: https://github.com/carbon-intensity/terms
  - type: License
    url: https://creativecommons.org/licenses/by/4.0/
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/plans/carbon-intensity-plans.yml
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/rate-limits/carbon-intensity-rate-limits.yml
  - type: FinOps
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/finops/carbon-intensity-finops.yml
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-schema/intensity-period.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-schema/generation-mix.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-schema/regional-intensity.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-schema/intensity-factors.json
  - type: Vocabulary
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/vocabulary/carbon-intensity-vocabulary.yml
  - type: JSONLDContext
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-ld/carbon-intensity-context.jsonld
- aid: carbon-intensity:carbon-intensity-national-intensity-api
  name: Carbon Intensity API National Intensity API
  description: National carbon intensity data for Great Britain
  humanURL: https://carbonintensity.org.uk/
  baseURL: https://api.carbonintensity.org.uk
  tags:
  - National Intensity
  properties:
  - type: OpenAPI
    url: openapi/carbon-intensity-national-intensity-api-openapi.yml
  - type: Documentation
    url: https://carbon-intensity.github.io/api-definitions/
  - type: GitHubRepository
    url: https://github.com/carbon-intensity/api-definitions
  - type: TermsOfService
    url: https://github.com/carbon-intensity/terms
  - type: License
    url: https://creativecommons.org/licenses/by/4.0/
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/plans/carbon-intensity-plans.yml
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/rate-limits/carbon-intensity-rate-limits.yml
  - type: FinOps
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/finops/carbon-intensity-finops.yml
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-schema/intensity-period.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-schema/generation-mix.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-schema/regional-intensity.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-schema/intensity-factors.json
  - type: Vocabulary
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/vocabulary/carbon-intensity-vocabulary.yml
  - type: JSONLDContext
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-ld/carbon-intensity-context.jsonld
- aid: carbon-intensity:carbon-intensity-regional-api
  name: Carbon Intensity API Regional API
  description: Regional carbon intensity and generation mix data (beta)
  humanURL: https://carbonintensity.org.uk/
  baseURL: https://api.carbonintensity.org.uk
  tags:
  - Regional
  properties:
  - type: OpenAPI
    url: openapi/carbon-intensity-regional-api-openapi.yml
  - type: Documentation
    url: https://carbon-intensity.github.io/api-definitions/
  - type: GitHubRepository
    url: https://github.com/carbon-intensity/api-definitions
  - type: TermsOfService
    url: https://github.com/carbon-intensity/terms
  - type: License
    url: https://creativecommons.org/licenses/by/4.0/
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/plans/carbon-intensity-plans.yml
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/rate-limits/carbon-intensity-rate-limits.yml
  - type: FinOps
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/finops/carbon-intensity-finops.yml
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-schema/intensity-period.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-schema/generation-mix.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-schema/regional-intensity.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-schema/intensity-factors.json
  - type: Vocabulary
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/vocabulary/carbon-intensity-vocabulary.yml
  - type: JSONLDContext
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-ld/carbon-intensity-context.jsonld
- aid: carbon-intensity:carbon-intensity-statistics-api
  name: Carbon Intensity API Statistics API
  description: Carbon intensity statistics and aggregations
  humanURL: https://carbonintensity.org.uk/
  baseURL: https://api.carbonintensity.org.uk
  tags:
  - Statistics
  properties:
  - type: OpenAPI
    url: openapi/carbon-intensity-statistics-api-openapi.yml
  - type: Documentation
    url: https://carbon-intensity.github.io/api-definitions/
  - type: GitHubRepository
    url: https://github.com/carbon-intensity/api-definitions
  - type: TermsOfService
    url: https://github.com/carbon-intensity/terms
  - type: License
    url: https://creativecommons.org/licenses/by/4.0/
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/plans/carbon-intensity-plans.yml
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/rate-limits/carbon-intensity-rate-limits.yml
  - type: FinOps
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/finops/carbon-intensity-finops.yml
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-schema/intensity-period.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-schema/generation-mix.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-schema/regional-intensity.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-schema/intensity-factors.json
  - type: Vocabulary
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/vocabulary/carbon-intensity-vocabulary.yml
  - type: JSONLDContext
    url: https://raw.githubusercontent.com/api-evangelist/carbon-intensity/refs/heads/main/json-ld/carbon-intensity-context.jsonld
common:
- type: Plans
  url: plans/carbon-intensity-plans.yml
- type: RateLimits
  url: rate-limits/carbon-intensity-rate-limits.yml
- type: FinOps
  url: finops/carbon-intensity-finops.yml
- type: IssueTracker
  url: https://github.com/carbon-intensity/api-definitions/issues
- type: AgenticAccess
  url: agentic-access/carbon-intensity-agentic-access.yml
- type: DomainSecurity
  url: security/carbon-intensity-domain-security.yml
- type: Website
  url: https://carbonintensity.org.uk/
- type: Documentation
  url: https://carbon-intensity.github.io/api-definitions/
- type: GitHubOrganization
  url: https://github.com/carbon-intensity
- type: TermsOfService
  url: https://github.com/carbon-intensity/terms
- type: License
  url: https://creativecommons.org/licenses/by/4.0/
- type: X
  url: https://x.com/carbonintensity
- type: LinkedIn
  url: https://www.linkedin.com/company/national-energy-system-operator
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Carbon Intensity API — frequently asked questions

Does Carbon Intensity API have an API?

Yes. APIs.io lists 5 APIs from Carbon Intensity API, including Carbon Intensity API Factors API, Carbon Intensity API Generation Mix API and Carbon Intensity API National Intensity API, and 2 more.

Is there an OpenAPI specification for the Carbon Intensity API?

Yes. APIs.io indexes 5 OpenAPI specifications for Carbon Intensity API, each linked for download from this page.

How much does the Carbon Intensity API cost?

APIs.io lists 1 pricing plan for Carbon Intensity API, with each plan's price, limits and inclusions under Pricing on this page.

Is the Carbon Intensity API ready for AI agents?

Carbon Intensity API has a Kin Score of 30.7 out of 100 (thin) and an Agent Readiness score of 23.8 (agent-aware), scored by API Evangelist on 2026-11-06.

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