Xcel Energy · Authentication Profile

Xcel Energy Authentication

Authentication

Xcel Energy secures its APIs with http, mutualTLS, and oauth2 across 4 declared security schemes, as derived from its OpenAPI definitions. OAuth 2.0 is offered via the authorizationCode and clientCredentials flow(s).

Electric UtilityEnergyEnergy DataGreen ButtonNatural GasSmart GridSmart MeterUtilityESPIIEEE 2030.5Fortune 500

Methods: http, mutualTLS, oauth2 Schemes: 4 OAuth flows: authorizationCode, clientCredentials API key in:

Security Schemes

accessToken oauth2

· flows: authorizationCode

clientAccessToken oauth2

· flows: clientCredentials

registrationAccessToken http

scheme: bearer

mtls mutualTLS

Source

Authentication Profile

generated: '2026-07-11'
method: derived
source: openapi/xcel-energy-green-button-api.yaml, openapi/xcel-energy-smart-meter-api.yaml
summary:
  types:
  - http
  - mutualTLS
  - oauth2
  oauth2_flows:
  - authorizationCode
  - clientCredentials
schemes:
- name: accessToken
  type: oauth2
  flows:
  - flow: authorizationCode
    authorizationUrl: https://api.xcelenergy.com/DataCustodian/oauth/authorize
    tokenUrl: https://api.xcelenergy.com/DataCustodian/oauth/token
    scopes: 1
  description: Customer-scoped access token issued via the OAuth 2.0 authorization-code grant.
  sources:
  - openapi/xcel-energy-green-button-api.yaml
- name: clientAccessToken
  type: oauth2
  flows:
  - flow: clientCredentials
    tokenUrl: https://api.xcelenergy.com/DataCustodian/oauth/token
    scopes: 1
  description: Application-scoped client access token used for management endpoints (Authorization
    list, Bulk, ServiceStatus).
  sources:
  - openapi/xcel-energy-green-button-api.yaml
- name: registrationAccessToken
  type: http
  scheme: bearer
  bearerFormat: Registration Access Token
  description: Token issued at application registration; used to read or update ApplicationInformation.
  sources:
  - openapi/xcel-energy-green-button-api.yaml
- name: mtls
  type: mutualTLS
  description: IEEE 2030.5 requires mutual TLS authentication. Clients present a device certificate
    whose subject contains the LFDI/SFDI used to authorize access. Plain HTTP is not permitted.
  sources:
  - openapi/xcel-energy-smart-meter-api.yaml