# Introduction

The Verifone **Payment Software Development Kit - Secure Data Interface** (PSDK-SDI) is a PCI-compliant payment solution providing low-level integration to Verifone terminals. Build your own Payment applications with direct access to card readers, EMV kernels, security functions, and peripherals.

**Key Benefits:**

* One integration across all Verifone platforms and regions
* Cross-platform support (Android, iOS)
* Unified API and documentation

## Documentation

### [Quick Guide](broken://pages/A95SsgP1wF4cCnszVNxA)

Fast-start overview covering integration options, SDI Server architecture, security, and development essentials.

### [Integration Guide](broken://pages/8RUvJ8pMVbH497OPCpeQ)

Comprehensive integration documentation:

* [**Setup Guides**](broken://pages/53d6310777240adef46e1aab24c27f6b53999946) - Android and iOS initial setup
* [**Usage Rules**](broken://pages/k4tTCygITwj9kaLfHhWW) - Lifecycle, error handling, threading, and async patterns
* [**Codelabs**](broken://pages/lxDWhU4zO35yVJotxE0G) - Step-by-step guides with code samples for MSR, EMV Contact/Contactless, PIN entry, and encryption
* **Peripherals** - Printing and barcode scanning
* [**Glossary**](broken://pages/f410d3ab0a94734e5bfd1ec7efa12a9bebdbceb7) - Payment industry terms

## Features

**Payment Methods:** MSR, EMV Contact/Contactless, Mobile Wallets, PIN Entry

**Security:** PCI-PTS certified, SRED, end-to-end encryption, key management, tamper detection

## Getting Started

1. Review the [Quick Guide](broken://pages/A95SsgP1wF4cCnszVNxA) for concepts and architecture
2. Follow [Setup Guides](broken://pages/53d6310777240adef46e1aab24c27f6b53999946) for Android or iOS
3. Study [Usage Rules](broken://pages/k4tTCygITwj9kaLfHhWW) for critical integration requirements
4. Complete [Codelabs](broken://pages/lxDWhU4zO35yVJotxE0G) with working examples

**Prerequisites:** Android/iOS development environment, Verifone terminal, payment processing knowledge, async programming familiarity

**Code Samples:** Kotlin (Android) and Swift (iOS) with sequence diagrams, best practices, and error handling patterns


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