CloudWalk Checkout Links API

openapi: 3.2.0
info:
  title: InfinitePay Checkout Checkout Links API
  version: '2026-08-01'
  summary: Generate InfinitePay hosted checkout payment links and query their payment status.
  description: 'The InfinitePay Integrated Checkout ("Checkout Integrado") API, operated by CloudWalk Inc. It has two public operations: create a hosted checkout link for a basket of items, and check the payment status of a previously created link. Payment is completed on the InfinitePay-hosted checkout page (checkout.infinitepay.io); the merchant is identified by its InfiniteTag `handle` rather than by an API key. Amounts are always integers in Brazilian cents (R$ 10,00 = 1000). Supported capture methods are `credit_card` (up to 12 installments) and `pix`.


    PROVENANCE: this document was NOT published by CloudWalk. It is a faithful transcription of CloudWalk''s own live, public API reference at https://www.infinitepay.io/checkout-documentacao (fetched 2026-08-01), with every path, field name, type and example taken verbatim from that page. Both hosts were probed live on 2026-08-01 to confirm the routes exist (see x-evidence). No operation, field or response has been invented; where the published reference is silent (error catalogue, rate limits, sandbox) this spec is silent too.'
  contact:
    name: InfinitePay / CloudWalk partner integrations
    email: parcerias@cloudwalk.io
    url: https://www.infinitepay.io/desenvolvedores
  termsOfService: https://www.infinitepay.io/legal/termos-de-uso
servers:
- url: https://api.checkout.infinitepay.io
  description: Production checkout API host (the host named in the current published reference).
- url: https://api.infinitepay.io/invoices/public/checkout
  description: Legacy path-based host for the same two operations. Probed live 2026-08-01 and still answering (POST /links returned the same 400 handle-validation error).
tags:
- name: Checkout Links
  description: Create InfinitePay-hosted checkout payment links.
paths:
  /links:
    post:
      tags:
      - Checkout Links
      operationId: createCheckoutLink
      summary: Create a checkout payment link
      description: Creates an InfinitePay-hosted checkout link for a basket of items. The response carries the URL the buyer is sent to in order to pay by credit card (up to 12 installments) or Pix.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateCheckoutLinkRequest'
            examples:
              minimal:
                summary: Minimal payload (from the published reference)
                value:
                  handle: colakids
                  items:
                  - quantity: 1
                    price: 1000
                    description: Produto de Exemplo
              full:
                summary: Full payload with tracking, redirect, webhook, customer and address
                value:
                  handle: colakids
                  items:
                  - quantity: 1
                    price: 1000
                    description: Produto de Exemplo
                  order_nsu: order-nsu-123
                  redirect_url: https://seusite.com/pagamento-concluido
                  webhook_url: https://seusite.com/webhook-infinitepay
                  customer:
                    name: João Silva
                    email: joao@email.com
                    phone_number: '+5511999887766'
                  address:
                    cep: '12345678'
                    street: Rua das Flores
                    neighborhood: Centro
                    number: '123'
                    complement: Apto 45
      responses:
        '200':
          description: Checkout link created.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CreateCheckoutLinkResponse'
              examples:
                checkoutUrl:
                  value:
                    checkout_url: https://checkout.infinitepay.io/colakids/1RxANX7tdF
        '400':
          description: A required parameter is missing or invalid. Observed live 2026-08-01 for an empty body.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
              examples:
                missingHandle:
                  value:
                    success: false
                    message: 'param is missing or the value is empty or invalid: handle'
components:
  schemas:
    Address:
      type: object
      description: Optional Brazilian delivery address used to pre-fill the hosted checkout form.
      properties:
        cep:
          type: string
          description: Brazilian postal code
          examples:
          - '12345678'
        street:
          type: string
          examples:
          - Rua das Flores
        neighborhood:
          type: string
          examples:
          - Centro
        number:
          type: string
          examples:
          - '123'
        complement:
          type: string
          examples:
          - Apto 45
    CreateCheckoutLinkResponse:
      type: object
      description: The published reference shows two response shapes for this operation on the same page — `{checkout_url}` in the interactive section and `{link, slug}` in the API summary block. Both are recorded; `checkout_url` is the one shown by the live interactive builder.
      properties:
        checkout_url:
          type: string
          format: uri
          description: The InfinitePay-hosted checkout page URL to send the buyer to.
          examples:
          - https://checkout.infinitepay.io/colakids/1RxANX7tdF
        link:
          type: string
          format: uri
          description: The generated payment link (alternate field name shown in the reference).
        slug:
          type: string
          description: The InfinitePay invoice code for the generated link.
          examples:
          - abcdef123
    Item:
      type: object
      required:
      - quantity
      - price
      - description
      properties:
        quantity:
          type: integer
          description: Quantity of the item.
          examples:
          - 1
        price:
          type: integer
          description: Unit price in Brazilian cents (R$ 10,00 = 1000).
          examples:
          - 1000
        description:
          type: string
          description: Item description shown on the checkout page.
          examples:
          - Produto de Exemplo
    Error:
      type: object
      description: The error envelope observed live on both hosts. CloudWalk publishes no error reference for this API; the shape below is what the API actually returned when probed on 2026-08-01.
      properties:
        success:
          type: boolean
          examples:
          - false
        message:
          type: string
          description: Human-readable error message (application-level errors).
        error:
          type: string
          description: Alternate key returned by the routing layer for unknown paths.
    Customer:
      type: object
      description: Optional buyer details used to pre-fill the hosted checkout form.
      properties:
        name:
          type: string
          examples:
          - João Silva
        email:
          type: string
          format: email
          examples:
          - joao@email.com
        phone_number:
          type: string
          examples:
          - '+5511999887766'
    CreateCheckoutLinkRequest:
      type: object
      required:
      - handle
      - items
      properties:
        handle:
          type: string
          description: The merchant's InfiniteTag (username in the InfinitePay app) without the leading "$". This is the only merchant credential the published reference requires.
          examples:
          - colakids
        items:
          type: array
          minItems: 1
          items:
            $ref: '#/components/schemas/Item'
          description: 'The products or services being purchased. At least one item is required. NOTE: the published reference is inconsistent about this key — the "Itens do Pedido" snippet spells it `itens` (Portuguese) while the interactive generated payload and the response examples spell it `items`. Both spellings appear on the provider''s own page; recorded here as published rather than resolved, because neither could be disambiguated without creating a live payment link.'
        order_nsu:
          type: string
          description: Optional merchant-side order identifier used to correlate the checkout link with an order in your system. If omitted InfinitePay generates a random value. It is a correlation key, not an idempotency key — the reference does not state that reusing it replays a prior response.
          examples:
          - order-nsu-123
        redirect_url:
          type: string
          format: uri
          description: Optional URL the buyer is sent to after paying. InfinitePay appends receipt_url, order_nsu, slug, capture_method and transaction_nsu as query parameters.
          examples:
          - https://seusite.com/pagamento-concluido
        webhook_url:
          type: string
          format: uri
          description: Optional URL that receives the paymentApproved webhook.
          examples:
          - https://seusite.com/webhook-infinitepay
        customer:
          $ref: '#/components/schemas/Customer'
        address:
          $ref: '#/components/schemas/Address'
      x-alias-fields:
        items:
        - itens
x-evidence:
  fetched: '2026-08-01'
  transcribed_from: https://www.infinitepay.io/checkout-documentacao
  probes:
  - url: https://api.checkout.infinitepay.io/
    method: GET
    http_status: 200
    body: OK <timestamp>
  - url: https://api.checkout.infinitepay.io/links
    method: POST
    request: '{}'
    http_status: 400
    body: '{"success":false,"message":"param is missing or the value is empty or invalid: handle"}'
  - url: https://api.checkout.infinitepay.io/payment_check
    method: POST
    request: '{}'
    http_status: 404
    body: '{"success":false,"message":"Not found"}'
  - url: https://api.infinitepay.io/invoices/public/checkout/links
    method: POST
    request: '{}'
    http_status: 400
    body: '{"success":false,"message":"param is missing or the value is empty or invalid: handle"}'
  - url: https://api.checkout.infinitepay.io/openapi.json
    method: GET
    http_status: 404
    note: provider publishes no machine-readable spec at any probed path
  spec_search:
  - path: /openapi.json
    status: 404
  - path: /openapi.yaml
    status: 404
  - path: /swagger.json
    status: 404
  - path: /api-docs
    status: 401
  - path: /redoc
    status: 404