Basiq Authentication API

openapi: 3.0.3
info:
  title: Basiq Accounts Authentication API
  description: The Basiq API is an open banking and financial data platform providing unified access to Australian and New Zealand bank account data. It enables financial applications to retrieve account balances, transactions, income verification, and expense categorization via consumer-consented bank connections using CDR (Consumer Data Right) and third-party open banking standards.
  version: 3.0.0
  contact:
    name: Basiq Support
    url: https://basiq.io/contact
  termsOfService: https://basiq.io/legal/terms-of-use/
servers:
- url: https://au-api.basiq.io
  description: Basiq API (Australia)
security:
- BearerAuth: []
tags:
- name: Authentication
paths:
  /token:
    post:
      operationId: createToken
      summary: Create Token
      description: Exchange API key for a server token or user token for API access.
      tags:
      - Authentication
      security: []
      requestBody:
        required: true
        content:
          application/x-www-form-urlencoded:
            schema:
              type: object
              properties:
                grant_type:
                  type: string
                  enum:
                  - client_credentials
                scope:
                  type: string
                  description: SERVER_ACCESS or CLIENT_ACCESS
              required:
              - grant_type
      responses:
        '200':
          description: Access token
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TokenResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
components:
  responses:
    BadRequest:
      description: Invalid request parameters
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
  schemas:
    TokenResponse:
      type: object
      properties:
        access_token:
          type: string
          description: JWT access token
        token_type:
          type: string
          description: Token type (Bearer)
        expires_in:
          type: integer
          description: Token expiry in seconds
    ErrorResponse:
      type: object
      properties:
        type:
          type: string
        title:
          type: string
        code:
          type: string
        detail:
          type: string
        source:
          type: object
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT