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

# Introduction

> Authenticate with the AgentCallback API and start making requests.

The AgentCallback Public API lets you create calls, manage voice agents, run campaigns, and look up phone numbers and voices from your own systems.

## Authentication

Every request must include your API key in the `x-api-key` header.

```bash theme={null}
curl https://agentcallback.com/api/validate-token \
  -H "x-api-key: YOUR_API_KEY"
```

<Card title="Get an API key" icon="key" href="/accounts-and-workspace/get-api-keys">
  Generate an API key from Dashboard > API Keys.
</Card>

## Base URL

```
https://agentcallback.com
```

## What you can do

<CardGroup cols={2}>
  <Card title="Calls" icon="phone">
    Create outbound calls and retrieve call status and history.
  </Card>

  <Card title="Voice Agents" icon="bot">
    Create, update, and version voice agent scripts.
  </Card>

  <Card title="Campaigns" icon="rocket">
    Create campaigns, control their lifecycle, and export their calls.
  </Card>

  <Card title="Phone Numbers & Voices" icon="mic">
    List phone numbers and voices available to your organization.
  </Card>
</CardGroup>