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

# Home

> Setup guides, channel how-tos, messaging resources and developer documentation for Kero.

# How can we help?

Find step-by-step guides, messaging resources and developer documentation to help you get the most out of Kero.

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### Featured guides

> **[Getting started](https://kero.chat/help/getting-started)**
>
> Register your account, set up your first messaging channel and send a test message.

> **[Messaging resources](https://kero.chat/help/messaging-resources/index)**
>
> Check RCS availability and SMS Sender ID requirements by country.

> **[Developer pages](https://kero.chat/help/kero-developer-pages/welcome)**
>
> Integrate SMS, RCS and WhatsApp messaging into your applications using the Kero API.

***

### Explore Kero's features

Discover Kero's messaging channels and the tools to help you manage your customer communications.

> **[SMS](https://kero.chat/help/product/channels/sms/what-is-sms.md)**
>
> Set up your SMS Agent, send messages and understand message length and delivery.

> **[RCS for Business](https://kero.chat/help/product/channels/rcs-for-business/connect-rcs.md)**
>
> Create, test and launch your verified RCS Agent for rich, branded messaging.

> **[WhatsApp Business](https://kero.chat/help/product/channels/whatsapp-business/what-is-wa-business.md)**
>
> Connect your WhatsApp Business Account, manage your Agent and get started with messaging.

> **[Contacts & Segments](https://kero.chat/help/product/contacts-segments/index)**
>
> Organise your contacts, create segments and reach the right people with your messaging campaigns.

***

### Suggested articles

Popular starting points to help you get up and running.

> **[Quick start to Kero](https://kero.chat/help/getting-started/quickstart.md)**
>
> A fast path from signup to sending messages: register, verify your email, connect your first channel and send a test.

> **[Send a test message](https://kero.chat/help/getting-started/send-a-test-message.md)**
>
> Test your setup with a Direct Message or a Campaign before you go live.

> **[Register an SMS Sender ID](https://kero.chat/help/messaging-resources/sms-resources/register-an-sms-sender-id.md)**
>
> Learn when a Sender ID needs registering and how Kero helps you through the process.

> **[SMS Sender ID requirements by country](https://kero.chat/help/messaging-resources/messaging-directories/sms-sender-id-requirements-by-country.md)**
>
> Check which countries require Sender ID registration before you start sending.


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