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

# Introduction

> Learn about the ways to connect a number to the WhatsApp Official API

export const frontendUrl = 'https://app.hubmessage.io';

export const projectName = 'Hub Message';

## Overview

There are currently two ways to connect a number to the **WhatsApp Official API**: **Cloud API** and **Coexistence**. In this section, you'll learn about the key characteristics, differences, and particularities of each option to understand which one best fits your needs.

<CardGroup cols={2}>
  <Card title="Cloud API" icon="cloud" href="/en/whatsapp-official/connection/cloud-api">
    The traditional connection method for new numbers, with full access to all platform features
  </Card>

  <Card title="Coexistence" icon="arrows-left-right" href="/en/whatsapp-official/connection/coexistence">
    Connect a number that's already in use in the WhatsApp Business app without having to deactivate it
  </Card>
</CardGroup>