generated: '2026-07-27'
method: searched
source: >-
  https://api.edfgb-kraken.energy/v1/graphql/ (HTTP 200 text/html — GraphiQL IDE),
  https://developer.edfgb-kraken.energy/graphql/guides/basics/ (HTTP 200),
  https://developer.edfgb-kraken.energy/rest/reference/ (HTTP 200),
  https://api.edfgb-kraken.energy/v1/products/ (HTTP 200 anonymous).
description: >-
  EDF Energy publishes no test/live key separation, no sandbox tenant, and no magic test
  identifiers. What it does publish — and this is genuinely more than most utilities offer
  — is a public interactive console plus a real production surface that answers
  anonymously, so a developer can exercise the API for real before holding any credential.
  The GraphQL IDE at api.edfgb-kraken.energy/v1/graphql/ is served publicly: requesting it
  with Accept: text/html returns HTTP 200 and a GraphiQL application (Kraken-branded, at
  /static/graphiql/). Inside it a caller can browse the whole schema, see the permissions
  each field requires, see the errors each field can raise, and read the complexity and
  rate-limit cost of a query before running it. Against that console, the retail product
  and tariff surface resolves with no credential at all. Everything customer-scoped needs
  a real token issued against a real EDF account or an OAuth application, and there is no
  synthetic account to stand in for one.
console:
  type: GraphiQL
  url: https://api.edfgb-kraken.energy/v1/graphql/
  public: true
  status: 200
  auth_required: false
  note: >-
    GET with Accept: text/html returns the IDE; GET without it returns HTTP 400
    {"errors":[{"message":"Must provide query string."}]}, and POST returns HTTP 200.
  capabilities:
  - Browse the full schema and its documentation
  - See the permissions required for any query or mutation
  - See the possible errors a query or mutation can return ("Possible errors" tab)
  - See per-field and total query complexity ("Query complexity" tab)
  - See the rate limits applied to the fields in a request ("Rate limits" tab)
rest_reference_console:
  type: ReDoc
  url: https://developer.edfgb-kraken.energy/rest/reference/
  public: true
  try_it: false
  note: ReDoc renders the OpenAPI but does not execute requests.
test_mode:
  supported: false
  key_prefixes: null
  test_clock: null
  fixtures: null
  note: >-
    No test-vs-live mode, no sandbox key prefix, and no published test credentials,
    test accounts, test MPANs/MPRNs or simulator values. Nothing was invented here.
anonymous_exercisable_surface:
  description: >-
    The nearest thing to a sandbox: production endpoints that answer without a
    credential, verified live on 2026-07-27.
  examples:
  - request: GET https://api.edfgb-kraken.energy/v1/products/
    status: 200
    returns: 21 live EDF products
    operation: openapi/edf-energy-kraken-openapi.yml#List Products
  - request: GET https://api.edfgb-kraken.energy/v1/industry/grid-supply-points/?postcode=SW1A1AA
    status: 200
    returns: GSP group _C
    operation: openapi/edf-energy-kraken-openapi.yml#List Industry Grid Supply Points
  - request: GET https://api.edfgb-kraken.energy/v1/products/EDF_EMPOWER_TRACKER_EX_SEG_12M_V2_HH/
    status: 200
    returns: a single live product with its tariffs
    operation: openapi/edf-energy-kraken-openapi.yml#Product
  - request: 'POST https://api.edfgb-kraken.energy/v1/graphql/ — energyProducts(postcode: "SW1A1AA", brand: "EDF")'
    status: 200
    returns: live EDF retail tariffs, e.g. EDF_FOL_06M_B1_1YR_26-07-24_v1 "Fixed Online 1 Year"
    note: 'Omitting brand returns KT-GB-9516; brand: "EDF" is the working value.'
  - request: GET https://api.edfgb-kraken.energy/external-client-healthcheck/
    status: 200
    returns: liveness
    operation: openapi/edf-energy-kraken-openapi.yml#External Client Health Check
onboarding:
  self_service: false
  path: >-
    Contact EDF/Kraken to request an OAuth application, supplying the client type
    (public or confidential), the grant type (authorization, client-credentials or
    device), the allowed redirect URIs, and the resources to be accessed.
  docs: https://auth.edfgb-kraken.energy/
related:
  conventions: conventions/edf-energy-conventions.yml
  authentication: authentication/edf-energy-authentication.yml
  rate_limits: rate-limits/edf-energy-rate-limits.yml