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

# Introduction

> Welcome to the Apten API documentation!

## What is Apten?

Apten is a customizable AI SMS + voice agent that automates sales and marketing for businesses. It qualifies and nurtures leads by proactively reaching out, responding at any time, and it always remembers to follow-up. This documentation will guide you on how to setup Apten and integrate it with your existing systems programmatically.

Here are some of Apten's core features:

<CardGroup cols={2}>
  <Card title="API Reference" icon="square-1" href="/api-reference">
    Learn how to use the Apten API to communicate with Apten programmatically.
  </Card>

  <Card title="Webhooks" icon="square-2" href="/webhooks">
    Receive real-time notifications from Apten when certain events occur.
  </Card>

  <Card title="Customer Profiles" icon="square-3" href="/tutorials/customer_profiles.mdx">
    Learn how to setup custom conversational flows for each type of lead.
  </Card>

  <Card title="Custom Knowledge" icon="square-4" href="/tutorials/custom_knowledge.mdx">
    Learn how to train Apten with information to use in conversations with leads.
  </Card>
</CardGroup>

## Support

Feel free to reach out to us at any time for support or feedback. Here are some ways to get in touch:

* Email us at [founders@apten.ai](mailto:founders@apten.ai)

* Tweet or DM us at [@Apten\_AI](https://x.com/Apten_AI)

We're always happy to help!