I have a tool in n8n that the Assistant call via webhook. Its important for the n8n flow to have the call id, but im receiving a json without it. How can I tell Vapi to include it in tool calling. The tool_call_id neither Im receving this:

javascript
[
  {
    "headers": {
      "host": "marianolopezaz.app.n8n.cloud",
      "user-agent": "node",
      "content-length": "42",
      "accept": "*/*",
      "accept-encoding": "gzip, br",
      "accept-language": "*",
      "baggage": "sentry-environment=production,sentry-public_key=a0021577936aec367b16615ad816c078,sentry-trace_id=c574f675e2e746ac88e1930012b07fc5",
      "cdn-loop": "cloudflare; loops=1; subreqs=1",
      "cf-connecting-ip": "54.214.206.248",
      "cf-ew-via": "15",
      "cf-ipcountry": "US",
      "cf-ray": "95cbf0fe15c0ef67-PDX",
      "cf-visitor": "{\"scheme\":\"https\"}",
      "cf-worker": "n8n.cloud",
      "content-type": "application/json",
      "sec-fetch-mode": "cors",
      "sentry-trace": "c574f675e2e746ac88e1930012b07fc5-b1f3e57624e68435",
      "traceparent": "00-49b57dd01b69ef85eb6b9042614c91dc-b7c9ab762e66e824-01",
      "x-forwarded-for": "54.214.206.248, 172.68.174.243",
      "x-forwarded-host": "marianolopezaz.app.n8n.cloud",
      "x-forwarded-port": "443",
      "x-forwarded-proto": "https",
      "x-forwarded-server": "traefik-prod-users-gwc-9-7bb7d4c57c-8ggrt",
      "x-is-trusted": "yes",
      "x-real-ip": "54.214.206.248"
    },
    "params": {},
    "query": {},
    "body": {
      "name": "Iñaki",
      "phone": "+5492644106861"
    },
    "webhookUrl": "https://marianolopezaz.app.n8n.cloud/webhook/f380cbb8-d504-4d23-a3d8-be5955d5a70e",
    "executionMode": "production"
  }
]

Make sure your n8n webhook captures the full payload not just the custom tool body to access it..

Do you know how can I check that config? Because it’s just a simple webhook node that receive what the API send

In your n8n Webhook node, enable “Raw Body” and use the full webhook URL to ensure you receive the complete vapi payload, including message.call.id.

Im trying with raw data but still not receiving the ids. https://cdn.discordapp.com/attachments/1392665659996897310/1393274049945272410/Screenshot_2025-07-11_at_1.50.55_pm.png?ex=68729313&is=68714193&hm=47a320598d54f9389ff1916a0610c6362d930a62098d691a6acc23f15bd63d1a& https://cdn.discordapp.com/attachments/1392665659996897310/1393274050452914216/Screenshot_2025-07-11_at_1.51.37_pm.png?ex=68729313&is=68714193&hm=7e3ed2d253547cf6faae1ff90f76792cefb843d0e9d781c19660a6a5e30b5581&

checking if this is resolved/solved for you?

it is thanks!