i looking for something like this event but i cant findit i need when the call star recive info into my webhook these not exist_

Vapi does not have a "start-of-call-report" event, but you can detect when a call starts by listening for the

status-update

event with

"status": "in-progress"

in your webhook. Here’s an example payload:

json
{
  "message": {
    "type": "status-update",
    "call": { /* Call Object */ },
    "status": "in-progress"
  }
}

Set your webhook to handle this event to trigger any logic you need at the start of a call. Source: - [Vapi documentation on server events](https://docs.vapi.ai/server-url/events)

hi thanks that work for me, now i have anoter question, how i can answaer to that webhook, becouse im trying to make someting instantly when call is establish and respond with the response. so i use { "message": { "type": "status-update", "call": { /* Call Object */ }, "status": "in-progress" } } but i dont know how respond to that webhook

cc: @Kings_big💫

Use a Server URL webhook to receive status-update events with "status": "in-progress" when a call starts, since there’s no direct “call start” event in the GUI.

yea thas work for me, now how i can respond to that webhook?

Set up a server endpoint to receive Vapi’s "status": "in-progress" webhook, parse the request, run your logic, such as logging or DB update, and respond with HTTP 200 to acknowledge it.

And instead of an HTTP 200, couldn't it return information? Something similar to the tools format??

Yes, instead of just HTTP 200, your server can return structured JSON with tool call results like toolCallId and result for tool-related webhooks, while simple events usually just need an HTTP 200 response.

you can give and example of a json of response of server url like status update?

Your server should return a structured JSON like { "results": [{ "toolCallId": "xyz", "result": "your result" }] }, while for simple status updates, call ended, an HTTP 200 response is usually sufficient.