API Overview

Unified Checkout Developer Guide
- Recent Revisions to This Document

Introduction to Unified Checkout

Unified Checkout Flow
- Enabling Unified Checkout in the Business Center

Server-Side Set Up
- Capture Context

Client-Side Set Up
- Loading the JavaScript Library and Invoking the Accept Function
- Complete Integration Examples

Transient Tokens
- Transient Token Format
- Token Verification
- Support for Dual-Branded Cards

Authorizations with a Transient Token
- REST Example: Requesting an Authorization with a Transient Token

Capture Context API
- Features
- Requesting the Capture Context
- Validating the Capture Context

Payment Details API
- REST Example: Retrieving Transient Token Payment Details

JavaScript API Reference
- Class: Accept
- Class: AcceptError
- Class: UnifiedPayments

Unified Checkout Configuration
- Enable Digital Payments
- Manage Permissions

Test Your Unified Checkout Configuration
- Test Payment Details
- Customer Authentication

Unified Checkout Appendix
- Unified Checkout UI
- JSON Web Tokens
- Client Version History
- Webhooks Support
- Unified Checkout Integration Examples
- Supported Countries for Digital Payments
- Supported Locales
- Reason Codes

VISA Platform Connect: Specifications and Conditions for Resellers/Partners

Google Pay UI

These screen captures show the sequence of events your customer can expect when completing a payment with Google Pay.

Google Pay UI