generated: '2026-07-27'
method: searched
source: https://login.aemo.com.au/login.aemo.com.au/v2.0/.well-known/openid-configuration?p=B2C_1A_DERR_SIGNUPSIGNIN
docs: https://dev.aemo.com.au/oauth
description: >-
  AEMO's OpenAPI documents declare only APIM subscription keys, so no oauth2 security scheme
  is derivable from the specs. AEMO does however run two real OAuth surfaces. The e-Hub gateway
  issues client_credentials bearer tokens at api.aemo.com.au/oauth/v1/token and publishes no
  scope vocabulary at all — authorisation is carried by the participant's URM permissions and
  APIM product subscription rather than by scopes. The DER Register consumer-registration API
  authenticates end users through an Azure AD B2C user flow whose OpenID Connect discovery
  document advertises the `openid` scope; the published DERR authorize request additionally
  requests `offline_access`.
schemes:
  - name: e-Hub OAuth 2.0 (client credentials)
    type: oauth2
    source: https://dev.aemo.com.au/oauth
    flows:
      - flow: clientCredentials
        tokenUrl: https://api.aemo.com.au/oauth/v1/token?grant_type=client_credentials
        preproductionTokenUrl: https://api.preprod.wgw.aemo.com.au/oauth/v1/token?grant_type=client_credentials
        scopes_documented: false
        note: >-
          Client ID and secret are sent as an HTTP Basic Authorization header. The token response
          returns transactionID, access_token and access_token_expires_in. AEMO documents no scope
          parameter and no scope vocabulary for this flow.
  - name: DER Register consumer registration (Azure AD B2C, OIDC)
    type: openIdConnect
    source: well-known/aemo-derr-openid-configuration.json
    issuer: https://login.aemo.com.au/51b4c181-bc43-439c-8cd4-a3249e0c7f2b/v2.0/
    flows:
      - flow: authorizationCode
        authorizationUrl: https://login.aemo.com.au/login.aemo.com.au/oauth2/v2.0/authorize?p=b2c_1a_derr_signupsignin
        tokenUrl: https://login.aemo.com.au/login.aemo.com.au/oauth2/v2.0/token?p=b2c_1a_derr_signupsignin
scopes:
  - scope: openid
    description: >-
      Standard OpenID Connect scope. The only value in `scopes_supported` of the DERR Azure AD B2C
      discovery document.
    flows: [authorizationCode]
    sources: [well-known/aemo-derr-openid-configuration.json]
  - scope: offline_access
    description: >-
      Requested alongside `openid` in AEMO's published DERR installer-portal authorize URL so the
      client can obtain a refresh token (the API exposes a refreshExpiredAccessToken operation).
    flows: [authorizationCode]
    sources:
      - openapi/aemo-der-consumer-registration-v1-openapi.yml
      - https://login.aemo.com.au/login.aemo.com.au/oauth2/v2.0/authorize?p=B2C_1A_DERR_SIGNUPSIGNIN
authorization_model:
  primary: >-
    Authorisation on AEMO's participant APIs is not scope-based. Access is granted by (1) formal
    onboarding of the participant to an APIM product, which yields a subscription key, and
    (2) per-user rights in URM/MSATS, administered by the participant's own administrator. An
    authenticated user without the right URM permission receives HTTP 422.
  references:
    - https://dev.aemo.com.au/urm-username-password
    - https://dev.aemo.com.au/faqs