openapi: 3.0.3 info: title: Apurata aCuotaz POS REST config 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: config description: Financing configuration and limits paths: /pos/client/landing_config: get: tags: - config operationId: getLandingConfig summary: Get funding limits description: Retrieve the minimum/maximum financeable amounts and installment step counts configured for the authenticated client. responses: '200': description: Funding limits content: application/json: schema: type: object properties: landing_version: type: string min_amount: type: number format: float max_amount: type: number format: float min_steps: type: integer max_steps: type: integer '401': description: Wrong or missing client token content: application/json: schema: $ref: '#/components/schemas/Error' security: - bearerAuth: [] 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 . HTTPS is mandatory.'