> ## Documentation Index
> Fetch the complete documentation index at: https://docs.useaxra.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Self-service sandbox partner signup (TEST keys only, rate-limited per IP)



## OpenAPI

````yaml /openapi.json post /api/v1/treasury/signup
openapi: 3.0.0
info:
  title: Axra Public API
  description: Merchant and third-party developer API surface
  version: '2026-04-15'
  contact: {}
servers:
  - url: http://localhost:3001
    description: Local development
  - url: https://staging-api.useaxra.com
    description: Staging
  - url: https://api.useaxra.com
    description: Production
security: []
tags: []
paths:
  /api/v1/treasury/signup:
    post:
      tags:
        - Signup
      summary: >-
        Self-service sandbox partner signup (TEST keys only, rate-limited per
        IP)
      operationId: TreasurySandboxSignupController_signup
      parameters: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/TreasurySandboxSignupDto'
      responses:
        '201':
          description: Sandbox partner created with test keys
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                    example: true
                  data:
                    $ref: '#/components/schemas/TreasurySandboxSignupResponseDto'
                required:
                  - success
                  - data
        '400':
          description: Bad request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HttpErrorEnvelopeDto'
        '404':
          description: Not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HttpErrorEnvelopeDto'
        '409':
          description: Conflict
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HttpErrorEnvelopeDto'
        '422':
          description: Unprocessable
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HttpErrorEnvelopeDto'
        '429':
          description: Too many requests
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HttpErrorEnvelopeDto'
        '500':
          description: Server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HttpErrorEnvelopeDto'
components:
  schemas:
    TreasurySandboxSignupDto:
      type: object
      properties:
        name:
          type: string
          example: Acme Treasury
        slug:
          type: string
          example: acme-sandbox
        contactEmail:
          type: string
          example: ops@acme.test
      required:
        - name
        - slug
    TreasurySandboxSignupResponseDto:
      type: object
      properties:
        partner:
          type: object
          additionalProperties: true
        credentials:
          $ref: '#/components/schemas/TreasurySandboxSignupCredentialsDto'
      required:
        - partner
        - credentials
    HttpErrorEnvelopeDto:
      type: object
      properties:
        success:
          type: boolean
          example: false
        error:
          $ref: '#/components/schemas/HttpErrorBodyDto'
      required:
        - success
        - error
    TreasurySandboxSignupCredentialsDto:
      type: object
      properties:
        secretKey:
          type: string
        publishableKey:
          type: string
      required:
        - secretKey
        - publishableKey
    HttpErrorBodyDto:
      type: object
      properties:
        code:
          type: string
          example: VALIDATION_ERROR
        message:
          type: string
          example: email must be an email
        statusCode:
          type: number
          example: 400
        errors:
          type: object
          description: >-
            Optional per-field validation messages (when present on the source
            exception)
          additionalProperties:
            type: array
            items:
              type: string
      required:
        - code
        - message
        - statusCode

````