First Solar · Authentication Profile

First Solar Authentication

Authentication

First Solar secures its APIs with oauth2 and openIdConnect across 2 declared security schemes, as derived from its OpenAPI definitions. OAuth 2.0 is offered via the authorizationCode flow(s).

SolarEnergyRenewable EnergyManufacturingFortune 1000PhotovoltaicsThin FilmUtility-Scale SolarClean Energy
Methods: oauth2, openIdConnect Schemes: 2 OAuth flows: authorizationCode API key in:

Security Schemes

OpenIDConnect openIdConnect
OAuth2 oauth2
· flows: authorizationCode

Source

Authentication Profile

first-solar-authentication.yml Raw ↑ 
generated: '2026-09-10'
method: probed
source: https://portal.firstsolar.com/.well-known/openid-configuration
docs: https://portal.firstsolar.com/developer/PortalCustomLogin
note: 'Served by the Salesforce Experience Cloud tenant that runs the First Solar Developer Portal (portal.firstsolar.com)
  — First Solar''s own host and its own OIDC issuer. The endpoints and the scope vocabulary are Salesforce
  platform-standard, not a First Solar-authored API contract: First Solar publishes no API product of
  its own. Recorded because it is a real, unauthenticated, machine-readable document the provider serves.'
summary:
  types:
  - oauth2
  - openIdConnect
  api_key_in: []
  oauth2_flows:
  - authorizationCode
  grant_types_supported:
  - authorization_code
  - refresh_token
  token_endpoint_auth_methods:
  - client_secret_post
  - client_secret_basic
  - private_key_jwt
  pkce:
  - S256
  dpop:
  - RS256
  - RS384
  - RS512
  - ES256
  - ES384
  - ES512
  - EdDSA
schemes:
- name: OpenIDConnect
  type: openIdConnect
  openIdConnectUrl: https://portal.firstsolar.com/.well-known/openid-configuration
  issuer: https://portal.firstsolar.com/developer
  jwks_uri: https://portal.firstsolar.com/developer/id/keys
  id_token_signing_alg_values_supported:
  - RS256
  subject_types_supported:
  - public
  claims_supported:
  - active
  - address
  - email
  - email_verified
  - family_name
  - given_name
  - is_app_installed
  - language
  - locale
  - name
  - nickname
  - organization_id
  - phone_number
  - phone_number_verified
  - photos
  - picture
  - preferred_username
  - profile
  - sub
  - updated_at
  - urls
  - user_id
  - user_type
  - zoneinfo
  sources:
  - well-known/first-solar-openid-configuration.json
- name: OAuth2
  type: oauth2
  flows:
  - flow: authorizationCode
    authorizationUrl: https://portal.firstsolar.com/developer/services/oauth2/authorize
    tokenUrl: https://portal.firstsolar.com/developer/services/oauth2/token
    refreshUrl: https://portal.firstsolar.com/developer/services/oauth2/token
    scope_count: 36
  introspection_endpoint: https://portal.firstsolar.com/developer/services/oauth2/introspect
  revocation_endpoint: https://portal.firstsolar.com/developer/services/oauth2/revoke
  registration_endpoint: https://portal.firstsolar.com/developer/services/oauth2/register
  end_session_endpoint: https://portal.firstsolar.com/developer/services/auth/idp/oidc/logout
  userinfo_endpoint: https://portal.firstsolar.com/developer/services/oauth2/userinfo
  response_types_supported:
  - code
  - token
  - token id_token
  sources:
  - well-known/first-solar-openid-configuration.json
x-evidence:
- url: https://portal.firstsolar.com/.well-known/openid-configuration
  http_status: 200
  content_type: application/json
  fetched: '2026-09-10'
- url: https://portal.firstsolar.com/developer/id/keys
  http_status: 200
  content_type: application/json
  fetched: '2026-09-10'
  note: JWKS returns real RSA signing keys
- url: https://portal.firstsolar.com/developer/services/oauth2/token
  http_status: 400
  fetched: '2026-09-10'
  note: unauthenticated POST returns RFC 6749 {"error":"unsupported_grant_type"} — endpoint is live

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