openapi: 3.0.3
info:
  title: Apurata aCuotaz POS REST config widgets API
  version: '1.0'
  x-apievangelist-generated: '2026-07-18'
  x-apievangelist-method: generated
  x-apievangelist-source: https://docs.apurata.com/POS/rest_api/
  description: Merchant-facing REST API for the aCuotaz "buy now, pay later" installment financing product operated by Apurata (Tecno Creditos S.A.C., Peru). Lets an e-commerce merchant fetch financing limits, create and manage installment orders, confirm/cancel orders, issue total or partial refunds, and render the aCuotaz checkout widgets. Transcribed faithfully from the public documentation at docs.apurata.com; not published by Apurata as an OpenAPI file.
  contact:
    name: Apurata aCuotaz Integrations
    url: https://docs.apurata.com/POS/intro/
  license:
    name: Proprietary
servers:
- url: https://apurata.com
  description: Production (test and live behavior are selected by the client_id / secret token issued)
tags:
- name: widgets
  description: Embeddable checkout widgets (HTML)
paths:
  /pos/pay-with-apurata-add-on/{amount}:
    get:
      tags:
      - widgets
      operationId: getAddOnWidget
      summary: Get aCuotaz add-on widget
      description: Retrieve a styled HTML/CSS widget that shows installment financing options for a given purchase amount. Authenticated with the Client_id header.
      parameters:
      - name: amount
        in: path
        required: true
        schema:
          type: number
          format: float
      - name: Client_id
        in: header
        required: true
        schema:
          type: string
        description: Your aCuotaz client id
      responses:
        '200':
          description: HTML widget
          content:
            text/html:
              schema:
                type: string
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /pos/{client_id}/info-steps:
    get:
      tags:
      - widgets
      operationId: getInfoSteps
      summary: Get aCuotaz info-steps widget
      description: Retrieve a styled HTML widget describing the aCuotaz steps, requirements, and payment options for a checkout page.
      parameters:
      - name: client_id
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: HTML widget
          content:
            text/html:
              schema:
                type: string
components:
  schemas:
    Error:
      type: object
      properties:
        error:
          type: string
        message:
          type: string
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: 'Secret token issued by Apurata, sent as Authorization: Bearer <secret_token>. HTTPS is mandatory.'