Is anyone else having tool-call Webhook
# general-englishs
sparkosaurus
04/30/2025, 6:39 PMIs anyone else having tool-call Webhook Response issues? My webhook response is firing off correctly, but my agent never recieves it. Yes, the toolCallId is correct and yes the JSON is correct....I copied the result out of the API and just sent back "Success" in the results body and no dice. I've tried redoing everything over and over...and I have other webhook response modules that work (I'm running a transient agent and that webhook response is way more complex)... Looks like others are having issues but either everyone just gives up or chooses not to post the solution.
sparkosaurus
04/30/2025, 7:31 PMThis is the problem.
From Vapi's Call Log Details - Messages
{
"role": "tool_calls",
"time": 1746039521349,
"message": "",
"toolCalls": [
{
"id": "call_VT1VEgSJDQS1bA4AwekQSt6M",
"type": "function",
"function": {
"name": "In_CheckAvailability",
"arguments": "{\n \"date\": \"2025-05-01\",\n \"time\": \"14:00\",\n \"location\": \"Phoenix, Arizona\"\n}"
}
}
],
"secondsFromStart": 103.011
}
That's the original call. After the Google Call Free/Busy module we hit a router for "available" or "busy" and they go to their respective Webhook Response modules. Here is the JSON in the response module.
{
"toolCallId": "{{1.message.toolCalls[].id}}",
"function": {
"name": "In_CheckAvailability",
"result": {
"startDateTime": "{{59.timeMin}}",
"endDateTime": "{{59.timeMax}}",
"timeZone": "America/Phoenix"
}
},
"type": "function"
}
And here's a screenshot of the Webhook Response
I can't figure what's wrong.
https://cdn.discordapp.com/attachments/1367208801714966588/1367221766870663381/image.png?ex=6813cbfe&is=68127a7e&hm=fff6aed3b3061fd0a0a08f101ed1b1b273313aeba8150a81453244ced496a335&