> ## Documentation Index
> Fetch the complete documentation index at: https://docs.gx402.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Gx402 SDK API Reference

> Complete API reference for the Gx402 SDK

<Card title="🚧 Coming Soon" icon="warning" color="yellow">
  This Section is still under work and need some time to get fully functional and working, We recommend you to head over **Getting Started** section for now and see the potential of Gx402!
</Card>

## Overview

The Gx402 SDK API provides developers with access to powerful x402 functionality for games. This reference documents all available methods, parameters, and return values.

## Authentication

All API requests require authentication using your API Key. Include your API Key in the `X-Gx402-API-Key` header of your requests.

```
X-Gx402-API-Key: YOUR_API_KEY
```

## Base URL

`https://api.Gx402.io/v1`