> ## Documentation Index
> Fetch the complete documentation index at: https://developer.surecart.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> Developer documentation for extending and customizing SureCart

Welcome to the SureCart developer documentation. Here you'll find everything you need to integrate, extend, and customize SureCart for your WordPress site.

## Getting Started

<CardGroup cols={2}>
  <Card title="Working with Data" icon="database" href="/documentation/php-models">
    Learn how to query and manipulate SureCart data using PHP models and Redux
    queries.
  </Card>

  <Card title="Orders & Purchases" icon="receipt" href="/documentation/orders-and-purchases">
    Understand how orders and purchases work and how to integrate with them.
  </Card>

  <Card title="Actions & Filters" icon="code" href="/documentation/actions-reference">
    Extend SureCart functionality using WordPress hooks, actions, and filters.
  </Card>

  <Card title="API Reference" icon="terminal" href="/api-reference/introduction">
    Complete REST API documentation for programmatic access to SureCart.
  </Card>
</CardGroup>

## Extending SureCart

<CardGroup cols={3}>
  <Card title="Cart & Checkout" icon="credit-card" href="/documentation/add-to-cart">
    Programmatically add items to the cart and checkout.
  </Card>

  <Card title="Custom Loops" icon="arrows-rotate" href="/documentation/custom-loops">
    Create custom product loops and displays.
  </Card>

  <Card title="Admin UI" icon="gauge" href="/documentation/admin-ui">
    Extend and customize the admin interface.
  </Card>
</CardGroup>