Chime Authentication API

openapi: 3.0.3
info:
  title: Chime Partner Authentication API
  description: 'The Chime Partner API provides programmatic access to Chime user account information, transactions, account balances, statements, and payment initiation. Authentication is handled via OAuth 2.0 with support for Authorization Code Flow and PKCE (Proof Key for Code Exchange).

    '
  version: 1.0.0
  contact:
    url: https://developer.chime.com/
  x-api-status: production
servers:
- url: https://api.chimebank.com/chime/v1
  description: Chime Partner API Production Server
security:
- BearerAuth: []
tags:
- name: Authentication
  description: Legacy partner authentication
paths:
  /users/auth_token:
    post:
      operationId: signIn
      summary: Sign in and obtain auth token (Legacy)
      description: 'Legacy authentication endpoint. Returns an auth_token for use with legacy API calls. Not recommended for new integrations; use OAuth 2.0 instead.

        '
      tags:
      - Authentication
      security: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/LegacySignInRequest'
      responses:
        '200':
          description: Authentication successful
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/LegacyAuthResponse'
        '401':
          description: Invalid credentials
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
    delete:
      operationId: signOut
      summary: Invalidate auth token (Legacy)
      description: 'Legacy endpoint to invalidate an existing auth_token (logout). Not recommended for new integrations; use OAuth 2.0 instead.

        '
      tags:
      - Authentication
      parameters:
      - name: client_id
        in: query
        required: true
        description: Your application's client identifier
        schema:
          type: string
      - name: secret
        in: query
        required: true
        description: Your application's client secret
        schema:
          type: string
      - name: auth_token
        in: query
        required: true
        description: The auth token to invalidate
        schema:
          type: string
      responses:
        '200':
          description: Token invalidated successfully
        '401':
          description: Invalid credentials
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  schemas:
    LegacyAuthResponse:
      type: object
      description: Legacy authentication response
      properties:
        auth_token:
          type: string
          description: Authentication token for legacy API calls
        user_id:
          type: string
          description: Authenticated user's ID
    Error:
      type: object
      description: Standard API error response
      properties:
        error:
          type: string
          description: Error code
        message:
          type: string
          description: Human-readable error message
        status:
          type: integer
          description: HTTP status code
    LegacySignInRequest:
      type: object
      required:
      - client_id
      - secret
      - username
      - password
      properties:
        client_id:
          type: string
          description: Your application's client identifier
        secret:
          type: string
          description: Your application's client secret
        username:
          type: string
          description: User's email or username
        password:
          type: string
          format: password
          description: User's password
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: OAuth 2.0 Bearer token