openapi: 3.0.3
info:
  title: TSYS Payment Gateway
  description: >-
    TSYS Payment Gateway API for processing credit, debit, and prepaid card
    transactions. Supports authorization, capture, void, refund, and inquiry
    operations for card-present (POS) and card-not-present (ecommerce) scenarios.
    Part of the Global Payments / TSYS payment processing platform.
  version: 1.0.0
  contact:
    name: TSYS Developer Support
    url: https://developers.tsys.com/
servers:
  - url: https://api.tsys.com/v1
    description: TSYS Payment Gateway Production API
tags:
  - name: Transactions
    description: Process payment transactions
  - name: Authorization
    description: Authorize card payments
  - name: Capture
    description: Capture authorized transactions
  - name: Refunds
    description: Process refunds and credits
  - name: Voids
    description: Void pending transactions
  - name: Inquiries
    description: Look up transaction status
paths:
  /transactions/authorize:
    post:
      operationId: authorizeTransaction
      summary: Authorize Transaction
      description: >-
        Authorize a credit, debit, or prepaid card transaction without capturing.
        Returns an authorization code that can be used to capture the transaction later.
      tags:
        - Authorization
        - Transactions
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/AuthorizationRequest'
      responses:
        '200':
          description: Authorization response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AuthorizationResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /transactions/sale:
    post:
      operationId: processSale
      summary: Process Sale
      description: >-
        Process a combined authorization and capture (sale) transaction. Charges
        the card immediately for the full transaction amount.
      tags:
        - Transactions
        - Authorization
        - Capture
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SaleRequest'
      responses:
        '200':
          description: Sale response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TransactionResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /transactions/{transactionId}/capture:
    post:
      operationId: captureTransaction
      summary: Capture Transaction
      description: Capture a previously authorized transaction for settlement.
      tags:
        - Capture
        - Transactions
      parameters:
        - name: transactionId
          in: path
          required: true
          schema:
            type: string
          description: The transaction ID from the authorization response
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                amount:
                  type: number
                  format: float
                  description: Amount to capture (must not exceed authorized amount)
      responses:
        '200':
          description: Capture response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TransactionResponse'
        '404':
          $ref: '#/components/responses/NotFound'
  /transactions/{transactionId}/void:
    post:
      operationId: voidTransaction
      summary: Void Transaction
      description: Void an authorized or captured transaction before settlement.
      tags:
        - Voids
        - Transactions
      parameters:
        - name: transactionId
          in: path
          required: true
          schema:
            type: string
          description: The transaction ID to void
      responses:
        '200':
          description: Void response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TransactionResponse'
        '404':
          $ref: '#/components/responses/NotFound'
  /transactions/{transactionId}/refund:
    post:
      operationId: refundTransaction
      summary: Refund Transaction
      description: Process a full or partial refund for a settled transaction.
      tags:
        - Refunds
        - Transactions
      parameters:
        - name: transactionId
          in: path
          required: true
          schema:
            type: string
          description: The original transaction ID to refund
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                amount:
                  type: number
                  format: float
                  description: Refund amount (partial or full)
                reason:
                  type: string
                  description: Reason for the refund
      responses:
        '200':
          description: Refund response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TransactionResponse'
        '404':
          $ref: '#/components/responses/NotFound'
  /transactions/{transactionId}:
    get:
      operationId: getTransaction
      summary: Get Transaction
      description: Retrieve the status and details of a specific transaction.
      tags:
        - Inquiries
        - Transactions
      parameters:
        - name: transactionId
          in: path
          required: true
          schema:
            type: string
          description: Transaction identifier
      responses:
        '200':
          description: Transaction details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Transaction'
        '404':
          $ref: '#/components/responses/NotFound'
  /transactions:
    get:
      operationId: listTransactions
      summary: List Transactions
      description: Returns a paginated list of transactions for the merchant.
      tags:
        - Transactions
        - Inquiries
      parameters:
        - name: startDate
          in: query
          schema:
            type: string
            format: date
          description: Filter transactions from this date
        - name: endDate
          in: query
          schema:
            type: string
            format: date
          description: Filter transactions through this date
        - name: status
          in: query
          schema:
            type: string
            enum: [authorized, captured, settled, voided, refunded, declined]
          description: Filter by transaction status
        - name: cardType
          in: query
          schema:
            type: string
            enum: [visa, mastercard, amex, discover, debit]
          description: Filter by card type
        - name: page
          in: query
          schema:
            type: integer
            default: 1
        - name: limit
          in: query
          schema:
            type: integer
            default: 50
            maximum: 500
      responses:
        '200':
          description: Transaction list
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TransactionList'
  /batches/current:
    get:
      operationId: getCurrentBatch
      summary: Get Current Batch
      description: Returns the current open batch with pending settlement totals.
      tags:
        - Transactions
      responses:
        '200':
          description: Current batch details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Batch'
  /batches/current/close:
    post:
      operationId: closeCurrentBatch
      summary: Close Current Batch
      description: Close the current batch and submit it for settlement.
      tags:
        - Transactions
      responses:
        '200':
          description: Batch closed for settlement
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Batch'
components:
  securitySchemes:
    apiKeyAuth:
      type: apiKey
      in: header
      name: X-TSYS-API-Key
  responses:
    BadRequest:
      description: Invalid request parameters
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Unauthorized:
      description: Authentication required or invalid credentials
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    NotFound:
      description: Resource not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  schemas:
    Error:
      type: object
      properties:
        code:
          type: string
        message:
          type: string
        transactionId:
          type: string
    CardData:
      type: object
      description: Card payment credentials
      properties:
        cardNumber:
          type: string
          description: Tokenized card number (PAN token)
        expirationDate:
          type: string
          description: Card expiration date (MMYY format)
        cvv:
          type: string
          description: Card verification value
        cardholderName:
          type: string
        billingAddress:
          type: object
          properties:
            zip:
              type: string
            street:
              type: string
    AuthorizationRequest:
      type: object
      required:
        - amount
        - currency
        - card
        - merchantId
      properties:
        merchantId:
          type: string
          description: TSYS merchant ID
        amount:
          type: number
          format: float
          description: Transaction amount
        currency:
          type: string
          default: USD
          description: ISO 4217 currency code
        card:
          $ref: '#/components/schemas/CardData'
        orderId:
          type: string
          description: Merchant-assigned order identifier
        description:
          type: string
        ipAddress:
          type: string
          description: Customer IP address for fraud detection
    SaleRequest:
      allOf:
        - $ref: '#/components/schemas/AuthorizationRequest'
      type: object
      properties:
        captureImmediately:
          type: boolean
          default: true
    AuthorizationResponse:
      type: object
      properties:
        transactionId:
          type: string
        authorizationCode:
          type: string
        status:
          type: string
          enum: [approved, declined, partial, error]
        responseCode:
          type: string
        responseMessage:
          type: string
        amount:
          type: number
          format: float
        approvedAmount:
          type: number
          format: float
        avsResponse:
          type: string
          description: Address verification response code
        cvvResponse:
          type: string
          description: CVV match response code
        timestamp:
          type: string
          format: date-time
    TransactionResponse:
      type: object
      properties:
        transactionId:
          type: string
        status:
          type: string
        responseCode:
          type: string
        responseMessage:
          type: string
        amount:
          type: number
          format: float
        timestamp:
          type: string
          format: date-time
    Transaction:
      type: object
      properties:
        id:
          type: string
        merchantId:
          type: string
        orderId:
          type: string
        status:
          type: string
          enum: [authorized, captured, settled, voided, refunded, declined]
        amount:
          type: number
          format: float
        settledAmount:
          type: number
          format: float
        currency:
          type: string
        cardType:
          type: string
        lastFour:
          type: string
          description: Last four digits of the card number
        authorizationCode:
          type: string
        batchId:
          type: string
        createdAt:
          type: string
          format: date-time
        settledAt:
          type: string
          format: date-time
    TransactionList:
      type: object
      properties:
        data:
          type: array
          items:
            $ref: '#/components/schemas/Transaction'
        total:
          type: integer
        page:
          type: integer
        limit:
          type: integer
    Batch:
      type: object
      properties:
        id:
          type: string
        merchantId:
          type: string
        status:
          type: string
          enum: [open, closed, settled]
        transactionCount:
          type: integer
        saleTotal:
          type: number
          format: float
        refundTotal:
          type: number
          format: float
        netTotal:
          type: number
          format: float
        openedAt:
          type: string
          format: date-time
        closedAt:
          type: string
          format: date-time
security:
  - apiKeyAuth: []