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

# Webhook API Introduction

> Real-time notifications for LinkedIn and WhatsApp

The Webhook API enables real-time monitoring and notifications for both **LinkedIn** and **WhatsApp** platforms.

## Supported Platforms

<CardGroup cols={2}>
  <Card title="LinkedIn" icon="linkedin" href="#linkedin-webhooks">
    Monitor LinkedIn messages, invitations, and notifications in real-time
  </Card>

  <Card title="WhatsApp" icon="whatsapp" href="#whatsapp-webhooks">
    Receive WhatsApp messages instantly with QR code authentication
  </Card>
</CardGroup>

## How It Works

1. **Create Account**: Register your LinkedIn or WhatsApp account
2. **Start Monitoring**: Begin real-time monitoring
3. **Receive Webhooks**: Get instant notifications at your webhook URL

## LinkedIn Webhooks

Perfect for LinkedIn automation and real-time messaging:

* **Messages**: Direct messages sent and received

**Requirements:**

* LinkedIn login\_token
* Webhook URL for notifications

## WhatsApp Webhooks

Monitor WhatsApp messages with QR code authentication:

* **Messages**: Messages sent and received
* **QR Code**: QR code generation for authentication
* **Authentication**: Authentication success notifications

**Requirements:**

* Phone number (international format)
* Webhook URL for messages
* QR webhook URL (optional)

## Credit Usage

<Note>
  **LinkedIn**: 10 credits per day per active account (1 credit every 144 minutes)

  **WhatsApp**: 10 credits per day per active account (1 credit every 144 minutes)
</Note>

## Quick Start

<Steps>
  <Step title="Choose Platform">
    Select LinkedIn or WhatsApp based on your needs
  </Step>

  <Step title="Create Account">
    Use the create account endpoint with platform-specific parameters
  </Step>

  <Step title="Start Monitoring">
    Begin receiving real-time notifications
  </Step>
</Steps>

## Next Steps

* [Create Account](/api-reference/webhook-realtime/create_account) - Register your first account
* [Start Monitoring](/api-reference/webhook-realtime/start_monitoring) - Begin receiving webhooks
* [List Accounts](/api-reference/webhook-realtime/list_account) - Manage your accounts