E.ON Next

aid: eon-next
url: https://raw.githubusercontent.com/api-evangelist/eon-next/refs/heads/main/apis.yml
name: E.ON Next
kind: company
description: 'E.ON Next Energy Limited is the United Kingdom retail supply arm of the E.ON Group, formed after E.ON''s 2019
  acquisition of npower and serving roughly five million British households and small businesses with electricity, gas, smart
  meters, solar, home batteries, heat pumps and EV charging tariffs. It sits at the retail end of the GB energy value chain
  — buying wholesale, settling through Elexon, reading SMETS2 smart meters over the licensed Smart DCC network, and billing
  the customer — and it runs its entire operation on Kraken, the API-first, GraphQL-based energy operating system licensed
  from Kraken Technologies (Octopus Energy Group), onto which 5.8 million customers were migrated between June 2020 and June
  2022. Its API posture is the exact opposite of its platform''s reputation: the Kraken architecture underneath is API-first,
  but almost nothing is published outward. There is no developer portal, no API documentation, no OpenAPI, and no third-party
  route to a customer''s usage or billing data; developer.eonnext.com and docs.eonnext.com do not resolve, and both api.eonnext.com
  and data.eonnext.com answer every path with an unauthenticated AWS API Gateway 403 "Missing Authentication Token". The one
  machine-readable contract E.ON Next does publish is its customer identity layer — auth.eonnext.com, an Auth0 CIAM tenant,
  serves a complete anonymous OpenID Connect / RFC 8414 discovery document and JWKS — which describes how a customer signs
  in, not how a developer gets access. Britain mandated the metering infrastructure, not the data right: E.ON Next is bound
  by the Smart Energy Code and the DCC, which is live and implemented, but no consumer data-portability mandate equivalent
  to Australia''s CDR or Ontario''s Green Button applies to it, and none of the open GB market data (NESO Carbon Intensity,
  Elexon BSC, DNO open-data portals) originates here. Consumer data is closed, market data is published by other parties,
  and the only public contract is identity.'
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  - scopes
  - security
  generated: '2026-09-02'
  method: derived
image: https://images.ctfassets.net/fxmb2pqc184n/5oYVaG0Ukc9ErXnwbIcXe8/c18e22523f4b37a96b9b41997100ad8c/social-logo.png
tags:
- Energy
- United Kingdom
- Utilities
- Electricity
- Gas
- Smart Metering
- Energy Retail
- Kraken
- Solar
- EV Charging
- Identity
created: '2026-07-27'
modified: '2026-07-27'
specificationVersion: '0.23'
apis:
- aid: eon-next:identity
  name: E.ON Next Customer Identity (OpenID Connect)
  description: 'The OpenID Connect / OAuth 2.0 authorization server that authenticates E.ON Next customers into the online
    account and mobile app. It is an Auth0-hosted E.ON group CIAM tenant (certificate CN eon-next-uk.eon-ciam.auth0app.com,
    Cloudflare edge) and it serves a complete OIDC Discovery document, the RFC 8414 authorization-server metadata alias, and
    the signing JWKS anonymously — so its grants, endpoints, client authentication methods (including private_key_jwt and
    mTLS with certificate-bound tokens), PKCE, device flow, CIBA, DPoP and MFA challenge surface are observable fact rather
    than inference. This is NOT a developer programme: no client registration path is documented for third parties, no resource
    server or domain scope is advertised, and no energy data is reachable through it. It is catalogued because it is the only
    machine-readable contract E.ON Next publishes.'
  humanURL: https://www.eonnext.com/dashboard/sign-in
  baseURL: https://auth.eonnext.com/
  tags:
  - Identity
  - Authentication
  - OpenID Connect
  tags_raw:
  - Identity
  - Authentication
  - OpenID Connect
  - OAuth 2.0
  properties:
  - type: OpenIDConnect
    url: https://auth.eonnext.com/.well-known/openid-configuration
  - type: WellKnown
    url: well-known/eon-next-well-known.yml
  - type: Authentication
    url: authentication/eon-next-authentication.yml
  - type: OAuthScopes
    url: scopes/eon-next-scopes.yml
  - type: Login
    url: https://www.eonnext.com/dashboard/sign-in
common:
- type: WellKnown
  url: well-known/eon-next-well-known.yml
- type: SecurityTxt
  url: well-known/eon-next-security.txt
- type: Authentication
  url: authentication/eon-next-authentication.yml
- type: OAuthScopes
  url: scopes/eon-next-scopes.yml
- type: Conformance
  url: conformance/eon-next-conformance.yml
- type: LLMsTxt
  url: llms/eon-next-llms.txt
- type: VulnerabilityDisclosure
  url: security/eon-next-vulnerability-disclosure.yml
- type: Security
  url: https://www.eonnext.com/.well-known/security.txt
- type: DomainSecurity
  url: security/eon-next-domain-security.yml
- type: Website
  url: https://www.eonnext.com/
- type: LinkedIn
  url: https://www.linkedin.com/company/e-on-next
- type: Blog
  url: https://www.eonnext.com/blog
- type: Support
  url: https://www.eonnext.com/help
- type: Forum
  url: https://community.eonnext.com/
- type: Pricing
  url: https://www.eonnext.com/tariffs
- type: About
  url: https://www.eonnext.com/about
- type: Login
  url: https://www.eonnext.com/dashboard/sign-in
- type: TermsOfService
  url: https://www.eonnext.com/terms-and-conditions
- type: PrivacyPolicy
  url: https://www.eonnext.com/privacy
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com