openapi: 3.1.0
info:
  title: Visa Click to Pay
  description: >-
    The Visa Click to Pay API enables merchants and payment service providers to
    integrate Visa's secure remote commerce checkout experience. Based on EMV
    Secure Remote Commerce (SRC) standards, Click to Pay provides a streamlined
    online checkout flow where consumers can pay with stored Visa credentials
    without re-entering card details for each purchase.
  version: '1'
  contact:
    name: Visa Developer Support
    url: https://developer.visa.com/support
  termsOfService: https://developer.visa.com/capabilities/visa-secure-remote-commerce/product-terms
externalDocs:
  description: Visa Click to Pay Documentation
  url: https://developer.visa.com/capabilities/visa-secure-remote-commerce/docs
servers:
  - url: https://sandbox.api.visa.com
    description: Sandbox Server
  - url: https://api.visa.com
    description: Production Server
tags:
  - name: CTP Checkout API
    description: >-
      The Click to Pay Checkout API enables merchants to initiate and complete
      checkout transactions using stored Visa credentials, providing consumers
      with a seamless and secure payment experience.
  - name: CTP Consumer Management API
    description: >-
      The Consumer Management API allows SRC Initiators to manage consumer
      profiles, including enrollment, identity verification, and credential
      management within the Click to Pay ecosystem.
security:
  - mutualTLS: []
paths:
  /visasrci/v1/checkout:
    post:
      operationId: initiateCheckout
      summary: Initiate Checkout
      description: >-
        Initiates a Click to Pay checkout session for a consumer transaction.
        This operation creates a checkout context that allows the consumer to
        select from their stored payment credentials and complete the purchase.
      tags:
        - CTP Checkout API
      requestBody:
        description: Checkout initiation request details
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CheckoutRequest'
      responses:
        '200':
          description: Checkout session initiated successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CheckoutResponse'
        '400':
          description: Bad request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '401':
          description: Unauthorized
        '404':
          description: Resource not found
  /visasrci/v1/checkout/{checkoutId}:
    get:
      operationId: getCheckoutStatus
      summary: Get Checkout Status
      description: >-
        Retrieves the current status and details of an existing Click to Pay
        checkout session identified by the checkout ID.
      tags:
        - CTP Checkout API
      parameters:
        - $ref: '#/components/parameters/CheckoutIdParam'
      responses:
        '200':
          description: Checkout status retrieved successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CheckoutStatusResponse'
        '401':
          description: Unauthorized
        '404':
          description: Checkout session not found
  /visasrci/v1/consumers:
    post:
      operationId: enrollConsumer
      summary: Enroll Consumer
      description: >-
        Enrolls a new consumer into the Click to Pay ecosystem, creating a
        profile that can store payment credentials for streamlined checkout
        experiences across participating merchants.
      tags:
        - CTP Consumer Management API
      requestBody:
        description: Consumer enrollment details
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ConsumerEnrollmentRequest'
      responses:
        '201':
          description: Consumer enrolled successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConsumerEnrollmentResponse'
        '400':
          description: Bad request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '409':
          description: Consumer already enrolled
  /visasrci/v1/consumers/{consumerId}/credentials:
    post:
      operationId: addConsumerCredential
      summary: Add Consumer Credential
      description: >-
        Adds a new payment credential to an existing consumer profile. The
        credential is tokenized and stored securely for use in future Click to
        Pay transactions.
      tags:
        - CTP Consumer Management API
      parameters:
        - $ref: '#/components/parameters/ConsumerIdParam'
      requestBody:
        description: Payment credential details
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/AddCredentialRequest'
      responses:
        '201':
          description: Credential added successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AddCredentialResponse'
        '400':
          description: Bad request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '404':
          description: Consumer not found
components:
  securitySchemes:
    mutualTLS:
      type: mutualTLS
      description: >-
        Two-way SSL mutual authentication using a PKI certificate issued by
        Visa.
  parameters:
    CheckoutIdParam:
      name: checkoutId
      in: path
      required: true
      description: Unique identifier for the checkout session
      schema:
        type: string
    ConsumerIdParam:
      name: consumerId
      in: path
      required: true
      description: Unique identifier for the enrolled consumer
      schema:
        type: string
  schemas:
    CheckoutRequest:
      type: object
      required:
        - merchantId
        - amount
        - currency
      properties:
        merchantId:
          type: string
          description: Unique identifier for the merchant initiating checkout
        amount:
          type: number
          format: double
          description: Transaction amount
        currency:
          type: string
          description: ISO 4217 currency code
          pattern: '^[A-Z]{3}$'
          example: USD
        consumerIdentity:
          type: string
          description: >-
            Consumer email or phone number used to look up stored credentials
        merchantName:
          type: string
          description: Display name of the merchant
        returnUrl:
          type: string
          format: uri
          description: URL to redirect the consumer after checkout completion
    CheckoutResponse:
      type: object
      properties:
        checkoutId:
          type: string
          description: Unique identifier for the initiated checkout session
        status:
          type: string
          description: Current status of the checkout session
          enum:
            - INITIATED
            - PENDING
            - COMPLETED
            - EXPIRED
        checkoutUrl:
          type: string
          format: uri
          description: URL to redirect the consumer for checkout completion
    CheckoutStatusResponse:
      type: object
      properties:
        checkoutId:
          type: string
          description: Unique identifier for the checkout session
        status:
          type: string
          description: Current status of the checkout session
          enum:
            - INITIATED
            - PENDING
            - COMPLETED
            - EXPIRED
            - CANCELLED
        transactionId:
          type: string
          description: >-
            Transaction identifier assigned after successful payment
        paymentToken:
          type: string
          description: Tokenized payment credential used for the transaction
    ConsumerEnrollmentRequest:
      type: object
      required:
        - emailAddress
      properties:
        emailAddress:
          type: string
          format: email
          description: Consumer email address used as primary identifier
        firstName:
          type: string
          description: Consumer first name
        lastName:
          type: string
          description: Consumer last name
        mobileNumber:
          type: string
          description: Consumer mobile phone number in E.164 format
        countryCode:
          type: string
          description: ISO 3166-1 alpha-2 country code
          pattern: '^[A-Z]{2}$'
    ConsumerEnrollmentResponse:
      type: object
      properties:
        consumerId:
          type: string
          description: Unique identifier assigned to the newly enrolled consumer
        status:
          type: string
          description: Enrollment status
          enum:
            - ENROLLED
            - PENDING_VERIFICATION
    AddCredentialRequest:
      type: object
      required:
        - primaryAccountNumber
        - cardExpiryDate
      properties:
        primaryAccountNumber:
          type: string
          description: Primary account number of the Visa card
        cardExpiryDate:
          type: string
          description: Card expiration date in YYYY-MM format
          pattern: '^\d{4}-\d{2}$'
        cardholderName:
          type: string
          description: Name as it appears on the card
        billingAddress:
          $ref: '#/components/schemas/Address'
    AddCredentialResponse:
      type: object
      properties:
        credentialId:
          type: string
          description: Unique identifier for the stored credential
        maskedPan:
          type: string
          description: Masked primary account number showing only last four digits
        status:
          type: string
          description: Credential storage status
          enum:
            - ACTIVE
            - PENDING_VERIFICATION
    Address:
      type: object
      properties:
        street:
          type: string
          description: Street address
        city:
          type: string
          description: City name
        state:
          type: string
          description: State or province code
        postalCode:
          type: string
          description: Postal or ZIP code
        country:
          type: string
          description: ISO 3166-1 alpha-2 country code
          pattern: '^[A-Z]{2}$'
    ErrorResponse:
      type: object
      properties:
        errorCode:
          type: string
          description: Machine-readable error code
        message:
          type: string
          description: Human-readable error description
        details:
          type: array
          items:
            type: object
            properties:
              field:
                type: string
                description: Field that caused the error
              message:
                type: string
                description: Detail about the field error