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

# Audienceful API docs

> Explore our API docs. Manage your audience programmatically and more.

<img className="block dark:hidden rounded-xl" src="https://mintcdn.com/audienceful/WE1MWO_dAO5yLrg8/images/product2.png?fit=max&auto=format&n=WE1MWO_dAO5yLrg8&q=85&s=c85bb19575a1dd60c25e791d26af4982" alt="Hero Light" width="2048" height="1102" data-path="images/product2.png" />

<img className="hidden dark:block rounded-xl" src="https://mintcdn.com/audienceful/WE1MWO_dAO5yLrg8/images/product2.png?fit=max&auto=format&n=WE1MWO_dAO5yLrg8&q=85&s=c85bb19575a1dd60c25e791d26af4982" alt="Hero Dark" width="2048" height="1102" data-path="images/product2.png" />

## Setting up

The first step to interacting with the Audienceful API is authentication. We use API keys to give your applications access to our backend systems.

<CardGroup cols={1}>
  <Card title="Authentication" icon="lock" href="/authentication">
    Authenticate your requests using API keys
  </Card>
</CardGroup>

## Build

Build your own solution for expanding your audience. Our API is located at [https://audienceful.com/api/](https://audienceful.com/api/). We're going to continually be adding more functionality to the public API as we make improvements and build new features.

<Info>Can't find an endpoint for what you need? Let us know and we'll make it available as soon as possible!</Info>

<CardGroup cols={2}>
  <Card title="People" icon="user" href="/api-reference/people/get">
    Update your audience programmatically
  </Card>

  <Card title="Fields" icon="list" href="/api-reference/fields/get">
    Retrieve and create your custom fields
  </Card>
</CardGroup>

<Card title="Support" icon="comment-dots" href="https://www.audienceful.com/help">
  Find support and guides for the product
</Card>