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

# Webhooks

> Send conversation data to external HTTP endpoints at the end of a call.

# Webhooks

The Webhook node fires an HTTP POST to a URL when the conversation ends. Use it to send transcripts, trigger CRM updates, create support tickets, or notify external systems.

The Webhook node is a **post-processing node** — it runs after the conversation ends and receives the full conversation data. You can chain it after **Structured Output** to also send extracted fields.

## Adding a Webhook node

1. Drag the **Webhook** node from the sidebar (Post-Processing category) onto the canvas
2. Connect the End node's output to the Webhook node's `in` handle
3. Set the `transferTarget` URL

## Parameters

| Parameter        | Type   | Required | Description                      |
| ---------------- | ------ | -------- | -------------------------------- |
| `transferTarget` | string | ✅        | The HTTP endpoint URL to POST to |

## Payload

The webhook receives a POST request with this JSON body:

```json theme={null}
{
  "conversation": [
    {
      "type": "user",
      "text": "I need help with my bill",
      "timestamp": "2025-01-01T12:00:00.000Z"
    },
    {
      "type": "assistant",
      "text": "I'd be happy to help with your billing question.",
      "timestamp": "2025-01-01T12:00:01.000Z"
    }
  ]
}
```

When chained after a **Structured Output** node, the payload also includes the extracted fields:

```json theme={null}
{
  "structuredOutput": {
    "customerName": "Jane Smith",
    "issueType": "billing",
    "resolved": false
  }
}
```

## Response handling

Voiceblox checks the HTTP response status. The call proceeds regardless of the webhook response — failures are logged but don't crash the session.

## Typical patterns

**Transcript only:**

```
[End] ──▶ [Webhook]
```

**Structured data + transcript:**

```
[End] ──▶ [Structured Output] ──▶ [Webhook]
```

## Common use cases

* **CRM update** — POST conversation summary to Salesforce or HubSpot
* **Support ticket** — Create a Zendesk ticket with the transcript
* **Analytics** — Send conversation data to your data warehouse
* **Notifications** — Alert your team via Slack or email webhook