openapi: 3.2.0
info:
  title: Merchant-0 A2A Protocol Server Trial API
  description: Agent-to-Agent Commerce API for the 2026 Agentic Economy
  version: '2026.1'
tags:
- name: Trial
paths:
  /api/trial/status:
    get:
      summary: Get Trial Status
      description: 'CEO trial pipeline status (Task 4.1). Rule #11: no buyer_did.'
      operationId: get_trial_status_api_trial_status_get
      parameters:
      - name: sandbox_token
        in: query
        required: false
        schema:
          type: string
          default: ''
          title: Sandbox Token
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                type: object
                title: Response Get Trial Status Api Trial Status Get
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
      tags:
      - Trial
components:
  schemas:
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
            - type: string
            - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
      type: object
      required:
      - loc
      - msg
      - type
      title: ValidationError