API Overview

Acceptance Devices | PAX Acceptance Devices App Integration Guide
- Recent Revisions to This Document
- VISA Platform Connect: Specifications and Conditions for Resellers/Partners

Introduction to Acceptance Devices | PAX Acceptance Devices App

Terminals Supported by the PAX Acceptance Devices App

Transaction Workflow for the PAX Acceptance Devices App

Getting Started with the Acceptance Devices App
- Setting Up a PAX Terminal
- Loading Printer Paper in a PAX Terminal with an Integrated Printer
- Activating a Terminal in the Acceptance Devices App
  - Generating a Terminal Activation Code in the Business Center
  - Generating a Terminal Activation Code Using a REST API Request
    - Required Fields for Generating a Terminal Activation Code
    - REST Example: Generating a Terminal Activation Code
  - Entering an Activation Code in the Acceptance Devices App
- Getting Started with the Acceptance Devices App Server
  - Starting the Acceptance Devices App Server
- Customizing the Acceptance Devices App
  - Customizable Common Parameters
  - Customizable Local Mode Parameters
  - Customizable Standalone Mode Parameters
  - Customizing Parameters in the Business Center
  - Retrieving Parameters Using a REST API Request
    - Required Fields for Retrieving Parameters Using a REST API Request
    - REST Example: Retrieving Parameters Using a REST API Request
  - Customizing Parameters Using a REST API Request
    - Required Fields for Customizing Parameters Using a REST API Request
    - REST Example: Customizing Parameters Using a REST API Request

Local Mode Payment Services
- Communication Protocol Used in Local Mode
- Retrieving the Root CA Certificate
  - Retrieving the Root CA Certificate in the Business Center
  - Retrieving the Root CA Certificate Using a REST API Request
    - Required Fields for Retrieving the Root CA Certificate Using a REST API Request
    - REST Example: Retrieving the Root CA Certificate Using a REST API Request
- Activating a Secure mTLS Connection
  - Generating a POS Connection Code for the Point-of-Sale System
  - Requesting Certificates for the Point-of-Sale System
    - Required Fields for Requesting Certificates for the Point-of-Sale System
    - REST Example: Requesting Certificates for the Point-of-Sale System
- Implementing Hostname Validation
- Processing a Sale
  - Required Fields for Processing an Sale
  - REST Example: Processing a Sale
- Processing a Refund
  - Required Fields for Processing a Refund
  - Optional Fields for Processing a Refund
  - REST Example: Processing a Refund
- Processing a Stand-Alone Credit
  - Required Fields for Processing a Stand-Alone Credit
  - REST Example: Processing a Stand-Alone Credit
- Requesting a Check Transaction Status
  - Required Fields for Requesting a Check Transaction Status
  - REST Example: Requesting a Check Transaction Status
- Processing a Cancel Transaction
  - Required Fields for Processing a Cancel Transaction
  - REST Example: Processing a Cancel Transaction
- Processing a Sale with On-Reader Tipping
  - Required Fields for Processing a Sale with On-Reader Tipping
  - REST Example: Processing a Sale with On-Reader Tipping
- Processing a Sale with On-Receipt Tipping
  - Required Fields for Processing a Sale with On-Receipt Tipping
  - REST Example: Processing a Sale with On-Receipt Tipping
- Processing a Tip Adjust
  - Required Fields for Processing a Tip Adjust
  - REST Example: Processing a Tip Adjust
- Processing a Token Refund
  - Required Fields for Processing a Token Refund
  - REST Example: Processing a Token Refund
- Processing a Pre-Authorization
  - Required Fields for Processing a Pre-Authorization
  - REST Example: Processing a Pre-Authorization
- Processing an Incremental Authorization
  - Required Fields for Processing an Incremental Authorization
  - REST Example: Processing an Incremental Authorization
- Processing a Capture
  - Required Fields for Processing a Capture
  - Optional Fields for Processing a Capture
  - REST Example: Processing a Capture
- Processing a Mail Order or Telephone Order Sale
  - Required Fields for Processing a Mail Order or Telephone Order Sale
  - REST Example: Processing a Mail Order or Telephone Order Sale
- Processing a Mail Order or Telephone Order Pre-Authorization
  - Required Fields for Processing a Mail Order or Telephone Order Pre-Authorization
  - REST Example: Processing a Mail Order or Telephone Order Pre-Authorization
- Processing a Mail Order or Telephone Order Account Verification
  - Required Fields for Processing a Mail Order or Telephone Order Account Verification
  - REST Example: Processing a Mail Order or Telephone Order Account Verification
- Processing an Account Verification
  - Required Fields for Processing an Account Verification
  - REST Example: Processing an Account Verification
- Processing an Offline Transaction
  - Enabling or Disabling Offline Mode
  - Processing an Offline Sale
    - Required Fields for Processing an Offline Sale
    - REST Example: Processing an Offline Sale
  - Processing an Offline Refund
  - Submitting an Offline Transactions Batch for Authorization
- Processing a Cashback
  - Required Fields for Processing a Cashback
  - REST Example: Processing a Cashback
- Processing a Sale with Installment Details
  - Required Fields for Processing a Sale with Installment Details
  - Optional Fields for Processing a Sale with Installment Details
  - REST Example: Processing a Sale with Installment Details
- Processing a Sale with Payment Facilitator Details
  - Required Fields for Processing a Sale with Payment Facilitator Details
  - Optional Fields for Processing a Sale with Payment Facilitator Details
  - REST Example: Processing a Sale with Payment Facilitator Details
- Processing a Sale with Tax Details
  - Required Fields for Processing a Sale with Tax Details
  - Optional Fields for Processing a Sale with Tax Details
  - REST Example: Processing a Sale with Tax Details
- Printing a Customer or Merchant Receipt
  - Required Fields for Printing a Customer or Merchant Receipt
  - REST Example: Printing a Customer or Merchant Receipt

Cloud Mode Payment Services
- Communication Protocol Used in Cloud Mode
- Generating a Bearer Token for Authentication
  - Generating a Bearer Token for Authentication
- Processing a Sale
  - Required Fields for Processing a Sale
  - REST Example: Processing a Sale
- Processing a Refund
  - Required Fields for Processing a Refund
  - Optional Fields for Processing a Refund
  - REST Example: Processing a Refund
- Processing a Stand-Alone Credit
  - Required Fields for Processing a Stand-Alone Credit
  - REST Example: Processing a Stand-Alone Credit
- Requesting a Check Transaction Status
  - Required Fields for Requesting a Check Transaction Status
  - REST Example: Requesting a Check Transaction Status
- Processing a Cancel Transaction
  - Required Fields for Processing a Cancel Transaction
  - REST Example: Processing a Cancel Transaction
- Processing a Sale with On-Reader Tipping
  - Required Fields for Processing a Sale with On-Reader Tipping
  - REST Example: Processing a Sale with On-Reader Tipping
- Processing a Sale with On-Receipt Tipping
  - Required Fields for Processing a Sale with On-Receipt Tipping
  - REST Example: Processing a Sale with On-Receipt Tipping
- Processing a Tip Adjust
  - Required Fields for Processing a Tip Adjust
  - REST Example: Processing a Tip Adjust
- Processing a Token Refund
  - Required Fields for Processing a Token Refund
  - REST Example: Processing a Token Refund
- Processing a Pre-Authorization
  - Required Fields for Processing a Pre-Authorization
  - REST Example: Processing a Pre-Authorization
- Processing an Incremental Authorization
  - Required Fields for Processing an Incremental Authorization
  - REST Example: Processing an Incremental Authorization
- Processing a Capture
  - Required Fields for Processing a Capture
  - Optional Fields for Processing a Capture
  - REST Example: Processing a Capture
- Processing a Mail Order or Telephone Order Sale
  - Required Fields for Processing a Mail Order or Telephone Order Sale
  - REST Example: Processing a Mail Order or Telephone Order Sale
- Processing a Mail Order or Telephone Order Pre-Authorization
  - Required Fields for Processing a Mail Order or Telephone Order Pre-Authorization
  - REST Example: Processing a Mail Order or Telephone Order Pre-Authorization
- Processing a Mail Order or Telephone Order Account Verification
  - Required Fields for Processing a Mail Order or Telephone Order Account Verification
  - REST Example: Processing a Mail Order or Telephone Order Account Verification
- Processing an Account Verification
  - Required Fields for Processing an Account Verification
  - REST Example: Processing an Account Verification
- Processing a Cashback
  - Required Fields for Processing a Cashback
  - REST Example: Processing a Cashback
- Processing a Sale with Installment Details
  - Required Fields for Processing a Sale with Installment Details
  - Optional Fields for Processing a Sale with Installment Details
  - REST Example: Processing a Sale with Installment Details
- Processing a Sale with Payment Facilitator Details
  - Required Fields for Processing a Sale with Payment Facilitator Details
  - Optional Fields for Processing a Sale with Payment Facilitator Details
  - REST Example: Processing a Sale with Payment Facilitator Details
- Processing a Sale with Tax Details
  - Required Fields for Processing a Sale with Tax Details
  - Optional Fields for Processing a Sale with Tax Details
  - REST Example: Processing a Sale with Tax Details
- Printing a Customer or Merchant Receipt
  - Required Fields for Printing a Customer or Merchant Receipt
  - REST Example: Printing a Customer or Merchant Receipt
- Receiving Transaction Responses Asynchronously
  - Receiving Transaction Responses Asynchronously
  - REST Example: Processing a Sale Asynchronously
  - Processing a Check Transaction Events
    - Required Fields for Processing a Check Transaction Events
    - REST Example: Processing a Check Transaction Events

Standalone Mode Payment Services
- Enabling Standalone Mode in the Acceptance Devices App
- Processing a Sale
- Processing a Refund
- Processing a Stand-Alone Credit
- Processing a Sale with On-Reader Tipping
- Processing a Pre-Authorization
- Processing a Capture
- Processing a Mail Order or Telephone Order Sale
- Processing an Account Verification
- Processing an Offline Transaction
  - Enabling or Disabling Offline Mode
  - Processing an Offline Sale
  - Processing an Offline Refund
  - Submitting an Offline Transactions Batch for Authorization
- Processing a Sale with Installment Details
- Processing a Sale with Tax Details
- Printing a Customer or Merchant Receipt
- Emailing a Customer Receipt

Release Notes for PAX Acceptance Devices App
- Acceptance Devices App Version 1.12.0 Release Notes
  - Improvements
- Acceptance Devices App Version 1.11.0 Release Notes
  - Improvements
  - Fixed Issues
- Acceptance Devices App Version 1.10.0 Release Notes
  - New Features
  - Improvements
- Acceptance Devices App Version 1.9.0 Release Notes
  - New Features
  - Improvements
- Archive of Release Notes
  - Acceptance Devices App Version 1.8.0 Release Notes
    - Improvements
    - Fixed Issues
  - Acceptance Devices App Version 1.7.0 Release Notes
    - New Features
    - Improvements
    - Fixed Issues
  - Acceptance Devices App Version 1.6.0 Release Notes
    - Improvements
  - Acceptance Devices App Version 1.5.0 Release Notes
    - New Features
    - Improvements
    - Fixed Issues
  - Acceptance Devices App Version 1.4.0 Release Notes
    - New Features
    - Improvements
    - Fixed Issues
  - Acceptance Devices App Version 1.3.0 Release Notes
    - New Features
    - Improvements
    - Fixed Issues
  - Acceptance Devices App Version 1.2.0 Release Notes
    - Improvements
    - Fixed Issues
  - Acceptance Devices App Version 1.1.0 Release Notes
    - New Features

On This Page

Activating a Secure mTLS Connection

When the app is operating in Local mode, using a Mutual Transport Layer Security (mTLS) connection creates an additional layer of security for communication between the Acceptance Devices app running on your PAX terminal and point-of-sale (POS) system.

Using the mTLS protocol is recommended because it employs two-way verification. The minimum requirement for providing end-to-end data security is using the Transport Layer Security (TLS) protocol.

Before activating an mTLS connection, you must retrieve the Root CA certificate. For more information, see Retrieving the Root CA Certificate.

Endpoints

The endpoint is the same for the test and production environments.

Test:

POST https://{terminal IP address:port number}/ or wss://{terminal IP address:port number}/

Production:

POST https://{terminal IP address:port number}/ or wss://{terminal IP address:port number}/

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