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

# Introduction

> Build AI voice agents that make and receive phone calls in Hebrew and English.

# Yappr API

Yappr lets you create AI voice agents that speak naturally over the phone — no telephony infrastructure required. Point an agent at a phone number and it handles calls autonomously, captures information, and fires webhooks to your systems.

## What you can build

<CardGroup cols={2}>
  <Card title="Outbound calling" icon="phone-arrow-up-right">
    Automate outreach — sales calls, appointment reminders, lead qualification — at scale.
  </Card>

  <Card title="Inbound reception" icon="phone-arrow-down-left">
    Give your business a 24/7 AI receptionist that qualifies callers and routes them intelligently.
  </Card>

  <Card title="Data collection" icon="clipboard-list">
    Capture structured data from calls (names, order numbers, preferences) and send it to any webhook.
  </Card>

  <Card title="Webhook integrations" icon="webhook">
    Connect calls to your CRM, helpdesk, or internal tools with real-time webhooks fired mid-call.
  </Card>
</CardGroup>

## How it works

```
Your code → POST /calls → Yappr dials the number → AI agent speaks → Webhook fires with call data
```

1. **Create an agent** — write a system prompt that defines the agent's persona and goal
2. **Attach tools** — configure webhooks to capture and forward data during the call
3. **Buy a number** — get an Israeli phone number for inbound or outbound use
4. **Make calls** — trigger outbound calls via the API, or let the number receive inbound calls automatically

## Base URL

```
https://api.goyappr.com
```

All endpoints accept and return JSON. Authenticate using an API key in the `Authorization` header.

## Authentication

```bash theme={null}
Authorization: Bearer ypr_live_...
```

Generate API keys in the [Yappr dashboard](https://app.goyappr.com) under **Settings → API Keys**.

## Next steps

<CardGroup cols={2}>
  <Card title="Quickstart" icon="rocket" href="/quickstart">
    Create your first agent and make a call in under 5 minutes.
  </Card>

  <Card title="API Reference" icon="code" href="/api-reference/introduction">
    Full reference for all endpoints, parameters, and responses.
  </Card>
</CardGroup>