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

# Introduction

> API endpoints of TerraReach to integrate with 3rd party apps.

<Note>
  This section is for developers. If you're not looking to integrate TerraReach to your app, you can skip
  this section.
</Note>

## Welcome

The comprehensive guide to connect TerraReach to your application and start sending SMS.

## Prerequisites

You should complete these steps before using the API

1. [Register With TerraReach](https://app.terrareach.com/sign-up)
2. [Create an API Key](https://app.terrareach.com/settings/api-keys)