API Overview

Documentation Release Notes
- February 2026
  - Acceptance Devices | PAX A35 Terminal
  - Acceptance Devices | PAX A920 Terminal
  - Acceptance Devices | PAX A920 MAX Terminal
  - Acceptance Devices | PAX Acceptance Devices App
  - Acceptance Devices | PAX All-in-One Android Solution
  - Acceptance Devices | PAX IM30 Terminal
  - Acceptance Devices | Tap to Pay on Android Acceptance Devices App
  - Acceptance Devices | Tap to Pay on Android Solution
  - Acceptance Devices | Tap to Pay on iPhone Solution
  - Card Present Connect | Electric Vehicle Charging
  - Card Present Connect | Mass Transit
  - Credentialed Transactions
  - Getting Started with REST
  - Invoicing
  - Pay by Link
  - REST API Field Reference
  - Unified Click to Pay
- January 2026
  - Acceptance Devices | PAX All-in-One Android Solution
  - Acceptance Devices | Tap to Pay on Android Solution
  - Acceptance Devices | Tap to Pay on iPhone Solution
  - Card Present Connect | Retail
  - Payer Authentication
  - PIN Debit Processing
  - Secure Acceptance to Unified Checkout Migration
  - Simple Order API Field Reference
  - Visa Currency Conversion
- December 2025
  - Acceptance Devices | PAX Acceptance Devices App
  - Acceptance Devices | PAX All-in-One Android Solution
  - Acceptance Devices | Tap to Pay on Android Acceptance Devices App
  - Acceptance Devices | Tap to Pay on Android Solution
  - Card Present Connect | Mass Transit
  - Click to Pay Drop-In UI
  - Digital Accept Secure Integration
  - Getting Started with REST
  - Unified Checkout
- November 2025
  - Acceptance Devices | PAX A35 Terminal
  - Acceptance Devices | PAX A77 Terminal
  - Acceptance Devices | PAX A920 Terminal
  - Acceptance Devices | PAX A920 MAX Terminal
  - Acceptance Devices | PAX A920 PRO Terminal
  - Acceptance Devices | PAX All-in-One Android Solution
  - Acceptance Devices | PAX IM30 Terminal
  - Acceptance Devices | Tap to Pay on Android Solution
  - Digital Accept Secure Integration
  - Getting Started with REST
  - Invoicing
  - OAuth 2.0
  - Unified Checkout
- October 2025
  - Acceptance Devices | PAX Acceptance Devices App
  - Acceptance Devices | PAX All-in-One Android Solution
  - Acceptance Devices | Tap to Pay on Android Acceptance Devices App
  - Acceptance Devices | Tap to Pay on Android Solution
  - Click to Pay Drop-In UI
  - Digital Accept Secure Integration
  - Unified Checkout
  - Webhooks
- September 2025
  - Acceptance Devices | PAX All-in-One Android Solution
  - Acceptance Devices | Tap to Pay on Android Solution
  - Card Present Connect | Retail
  - Getting Started with REST
  - Payer Authentication
  - Payments
  - Webhooks
- August 2025
  - Acceptance Devices | PAX Acceptance Devices App
  - Acceptance Devices | PAX All-in-One Android Solution
  - Acceptance Devices | Tap to Pay on Android Acceptance Devices App
  - Acceptance Devices | Tap to Pay on Android Solution
  - Digital Accept Secure Integration
  - eCheck
  - Getting Started with REST
  - Unified Checkout
  - Webhooks
- July 2025
  - Acceptance Devices | Tap to Pay on Android Acceptance Devices App
  - Acceptance Devices | Tap to Pay on Android Solution Integration Guide
  - Acceptance Devices | PAX Acceptance Devices App Integration Guide
  - Acceptance Devices | PAX All-in-One Android Solution Integration Guide
  - Payer Authentication
  - Payments
  - Token Management Service
- June 2025
  - Acceptance Devices | PAX All-in-One Android Solution
  - Acceptance Devices | PAX Acceptance Devices App
  - Acceptance Devices | Tap to Pay on Android Solution
  - Acceptance Devices | Tap to Pay on Android Acceptance Devices App
  - Card Present Connect | Lodging
  - Digital Accept Secure Integration
  - eCheck
  - Independent Software Vendors
  - Invoicing
- May 2025
  - Acceptance Devices | PAX Acceptance Devices App
  - Acceptance Devices | PAX All-in-One Android Solution
  - Acceptance Devices | Tap to Pay on Android Acceptance Devices App
  - Acceptance Devices | Tap to Pay on Android Solution
  - eCheck
  - Merchant Boarding
  - OAuth 2.0 Partner Implementation Guide
  - Payer Authentication
  - Payments
  - Unified Checkout Integration
- April 2025
  - Acceptance Devices | Tap to Pay on Android Acceptance Devices App
  - Acceptance Devices | Tap to Pay on Android Solution
  - Acceptance Devices | PAX Acceptance Devices App
  - Acceptance Devices | PAX All-in-One Android Solution
  - Digital Accept Secure Integration
  - Getting Started with REST
  - Payer Authentication
  - Token Management Service
- March 2025
  - Digital Accept Secure Integration
  - Invoicing
  - Payer Authentication
  - Unified Checkout Integration
- February 2025
  - Getting Started with REST
  - Invoicing
  - Unified Checkout Integration
- January 2025
  - Apple Pay
  - Digital Accept Secure Integration
  - Getting Started with REST
  - OAuth 2.0 Partner Implementation Guide
  - Token Management Service
  - Unified Checkout Integration

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Acceptance Devices | PAX All-in-One Android Solution

25.08.01

: Added new SDK release and updated release version in code examples. See SDK Version 2.104.0 Release Notes.

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