Login.gov

Login.gov Token API

Token exchange using private_key_jwt or PKCE.

GitHub OpenAPI

Operations 1

POST /api/openid_connect/token Exchange Authorization Code for Tokens #

Documentation

📖
Documentation
https://developers.login.gov/oidc/
📖
Documentation
https://developers.login.gov/oidc/getting-started/
📖
Documentation
https://developers.login.gov/oidc/authorization/
📖
Documentation
https://developers.login.gov/oidc/token/
📖
Documentation
https://developers.login.gov/oidc/user-info/
📖
Documentation
https://developers.login.gov/oidc/logout/
📖
Documentation
https://developers.login.gov/oidc/certificates/
📖
Documentation
https://developers.login.gov/saml/
📖
Documentation
https://developers.login.gov/saml/getting-started/

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/login-gov/refs/heads/main/openapi/login-gov-token-api-openapi.yml

Schemas & Data

📊
JSONSchema
https://raw.githubusercontent.com/api-evangelist/login-gov/refs/heads/main/json-schema/login-gov-userinfo-schema.json
📊
JSONSchema
https://raw.githubusercontent.com/api-evangelist/login-gov/refs/heads/main/json-schema/login-gov-id-token-schema.json

Other Resources

🔗
Signup
https://portal.int.identitysandbox.gov
🔗
JSONLD
https://raw.githubusercontent.com/api-evangelist/login-gov/refs/heads/main/json-ld/login-gov-context.jsonld
🔗
SpectralRuleset
https://raw.githubusercontent.com/api-evangelist/login-gov/refs/heads/main/rules/login-gov-rules.yml

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OpenAPI Specification

login-gov-token-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: Login.gov OpenID Connect Token API
  version: 2026-01
  description: Login.gov is the U.S.
  contact:
    name: Login.gov Partner Support
    url: https://developers.login.gov
    email: partners@login.gov
  license:
    name: Public Domain (U.S. Government Work)
    url: https://www.usa.gov/government-works
servers:
- url: https://idp.int.identitysandbox.gov
  description: Sandbox (integration) environment
- url: https://secure.login.gov
  description: Production environment
tags:
- name: Token
  description: Token exchange using private_key_jwt or PKCE.
paths:
  /api/openid_connect/token:
    post:
      tags:
      - Token
      summary: Exchange Authorization Code for Tokens
      operationId: exchangeToken
      description: 'Exchanges the authorization code for an `access_token` and a signed `id_token`. Web apps

        authenticate using `private_key_jwt`; native apps use PKCE with a `code_verifier`.'
      requestBody:
        required: true
        content:
          application/x-www-form-urlencoded:
            schema:
              $ref: '#/components/schemas/TokenRequest'
      responses:
        '200':
          description: Token response.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TokenResponse'
        '400':
          description: Invalid request.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  schemas:
    TokenResponse:
      type: object
      properties:
        access_token:
          type: string
          description: Opaque bearer token for the userinfo endpoint.
        token_type:
          type: string
          example: Bearer
        expires_in:
          type: integer
          description: Lifetime of the access token in seconds.
        id_token:
          type: string
          description: Signed JWT (RS256) carrying authenticated user identity claims.
    TokenRequest:
      type: object
      required:
      - grant_type
      - code
      properties:
        grant_type:
          type: string
          enum:
          - authorization_code
        code:
          type: string
          description: Authorization code returned from `/openid_connect/authorize`.
        client_assertion_type:
          type: string
          description: Required for private_key_jwt clients.
          enum:
          - urn:ietf:params:oauth:client-assertion-type:jwt-bearer
        client_assertion:
          type: string
          description: Signed JWT (RS256) where `iss` and `sub` are `client_id`, `aud` is the token endpoint, and `jti`, `iat`, `exp` are set. Minimum 2048-bit key.
        code_verifier:
          type: string
          description: PKCE code verifier matching the original `code_challenge`. Used by native apps in lieu of `client_assertion`.
    Error:
      type: object
      properties:
        error:
          type: string
        error_description:
          type: string
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: opaque