EDF Energy

EDF Kraken GraphQL API

EDF Energy's primary developer API, and the surface EDF markets as its "open tariff APIs". It is the Kraken GraphQL API, licensed from Octopus Energy Group and hosted for EDF GB. Introspection is enabled anonymously: a standard IntrospectionQuery POSTed with no credentials returned HTTP 200 on 2026-07-27, yielding 2,492 types, 246 Query fields and 417 Mutation fields, saved verbatim as SDL in this repository. Retail product and tariff data resolves without any credential — energyProducts(postcode: "SW1A1AA", brand: "EDF") returned live EDF tariffs including EDF_FOL_06M_B1_1YR_26-07-24_v1 "Fixed Online 1 Year". Everything customer-scoped (smartMeterTelemetry, annualElectricityConsumption, applicableRates, plannedDispatches, vehicleChargingPreferences, fitInstallations, prepay ledgers) requires an Authorization header held by the account user, an organisation, or an OAuth application. Published limits: 50,000 points/hour for account users, 100,000 for organisations, 300,000 for OAuth applications; complexity limit 200; 10,000 nodes per request; rate-limit error KT-CT-1199. No consumer data mandate in Great Britain produced any of this.

GitHub

Documentation

📖
Documentation
https://developer.edfgb-kraken.energy/graphql/guides/
📖
APIReference
https://developer.edfgb-kraken.energy/graphql/reference/
📖
Documentation
https://www.edfenergy.com/energywise/edfs-open-tariff-apis
📖
Authentication
https://raw.githubusercontent.com/api-evangelist/edf-energy/refs/heads/main/authentication/edf-energy-kraken-openid-configuration.json
📖
RateLimits
https://raw.githubusercontent.com/api-evangelist/edf-energy/refs/heads/main/rate-limits/edf-energy-rate-limits.yml

Other Resources

🔗
GraphQL
https://raw.githubusercontent.com/api-evangelist/edf-energy/refs/heads/main/graphql/edf-energy-graphql.md
🔗
Changelog
https://developer.edfgb-kraken.energy/graphql/changelog/
🔗
ToolCrosswalk
https://raw.githubusercontent.com/api-evangelist/edf-energy/refs/heads/main/mcp/edf-energy-tool-crosswalk.yml
🔗
ErrorCatalog
https://raw.githubusercontent.com/api-evangelist/edf-energy/refs/heads/main/errors/edf-energy-error-codes.yml
🔗
Console
https://api.edfgb-kraken.energy/v1/graphql/
🔗
APIsJSON
https://raw.githubusercontent.com/api-evangelist/edf-energy/refs/heads/main/apis.yml

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API entry from apis.yml

apis.yml Raw ↑ 
aid: edf-energy:edf-kraken-graphql-api
name: EDF Kraken GraphQL API
description: 'EDF Energy''s primary developer API, and the surface EDF markets as its "open tariff APIs".
  It is the Kraken GraphQL API, licensed from Octopus Energy Group and hosted for EDF GB. Introspection
  is enabled anonymously: a standard IntrospectionQuery POSTed with no credentials returned HTTP 200 on
  2026-07-27, yielding 2,492 types, 246 Query fields and 417 Mutation fields, saved verbatim as SDL in
  this repository. Retail product and tariff data resolves without any credential — energyProducts(postcode:
  "SW1A1AA", brand: "EDF") returned live EDF tariffs including EDF_FOL_06M_B1_1YR_26-07-24_v1 "Fixed Online
  1 Year". Everything customer-scoped (smartMeterTelemetry, annualElectricityConsumption, applicableRates,
  plannedDispatches, vehicleChargingPreferences, fitInstallations, prepay ledgers) requires an Authorization
  header held by the account user, an organisation, or an OAuth application. Published limits: 50,000
  points/hour for account users, 100,000 for organisations, 300,000 for OAuth applications; complexity
  limit 200; 10,000 nodes per request; rate-limit error KT-CT-1199. No consumer data mandate in Great
  Britain produced any of this.'
humanURL: https://developer.edfgb-kraken.energy/graphql/
baseURL: https://api.edfgb-kraken.energy/v1/graphql/
tags:
- GraphQL
- Kraken
- Tariffs
- Energy Products
- Smart Metering
- Consumption
- EV Charging
- United Kingdom
properties:
- type: GraphQL
  url: graphql/edf-energy-graphql.md
- type: Documentation
  url: https://developer.edfgb-kraken.energy/graphql/guides/
- type: APIReference
  url: https://developer.edfgb-kraken.energy/graphql/reference/
- type: Changelog
  url: https://developer.edfgb-kraken.energy/graphql/changelog/
- type: Documentation
  url: https://www.edfenergy.com/energywise/edfs-open-tariff-apis
- type: Authentication
  url: authentication/edf-energy-kraken-openid-configuration.json
- type: ToolCrosswalk
  url: mcp/edf-energy-tool-crosswalk.yml
- type: ErrorCatalog
  url: errors/edf-energy-error-codes.yml
- type: RateLimits
  url: rate-limits/edf-energy-rate-limits.yml
- type: Console
  name: GraphiQL IDE
  url: https://api.edfgb-kraken.energy/v1/graphql/