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OpenAPI Specification

openapi: 3.1.0
info:
  title: Vantiv Chargeback Authorizations Credits API
  description: The Vantiv Chargeback API provides programmatic access to chargeback and dispute management. Merchants can retrieve chargeback details, upload evidence documents, respond to disputes, and manage the entire chargeback lifecycle. This API is used to defend against fraudulent disputes and retrieve chargeback settlement information.
  version: '2.0'
  contact:
    name: Worldpay Developer Hub
    url: https://developer.worldpay.com
  license:
    name: Proprietary
    url: https://developer.vantiv.com/community/ecommerce
servers:
- url: https://services.vantivprelive.com/services/chargebacks
  description: Vantiv Pre-Live (Staging) Environment
- url: https://services.vantivcnp.com/services/chargebacks
  description: Vantiv Production Environment
security:
- basicAuth: []
tags:
- name: Credits
  description: Refunds and credits to cardholder accounts
paths:
  /credit:
    post:
      operationId: createCredit
      summary: Create Credit
      description: Issue a refund to a cardholder. Can be a full or partial refund of a previously captured transaction, or an unlinked credit to any card.
      tags:
      - Credits
      requestBody:
        required: true
        content:
          application/xml:
            schema:
              $ref: '#/components/schemas/CreditRequest'
      responses:
        '200':
          description: Credit response
          content:
            application/xml:
              schema:
                $ref: '#/components/schemas/CreditResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  responses:
    Unauthorized:
      description: Unauthorized — invalid merchant credentials
      content:
        application/xml:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
    BadRequest:
      description: Bad request — malformed XML or invalid transaction data
      content:
        application/xml:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
  schemas:
    ErrorResponse:
      type: object
      properties:
        response:
          type: string
          description: Error response code
        message:
          type: string
          description: Error message
    CreditRequest:
      type: object
      required:
      - merchantId
      - id
      - orderId
      - amount
      properties:
        merchantId:
          type: string
        id:
          type: string
        cnpTxnId:
          type: integer
          format: int64
          description: Original transaction ID for linked credit
        orderId:
          type: string
        amount:
          type: integer
          description: Refund amount in cents
    CreditResponse:
      type: object
      properties:
        id:
          type: string
        cnpTxnId:
          type: integer
          format: int64
        response:
          type: string
        message:
          type: string
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic