Eric This workflow corresponds to n8n.io template #5665 — we link there as the canonical source.
The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"nodes": [
{
"id": "2969fa79-33b8-4bb4-9dd7-5212f66b413a",
"name": "Insufficient data response",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
1060,
1000
],
"parameters": {
"options": {
"responseCode": 400,
"responseHeaders": {
"entries": [
{
"name": "bad_request",
"value": "User data provided is insufficient to book a meeting. Get complete data from user and try to book the meeting again."
}
]
}
},
"respondWith": "text",
"responseBody": "User data provided is insufficient to book a meeting. Get complete data from user and try to book the meeting again."
},
"typeVersion": 1.1
},
{
"id": "c0a19ef9-9184-43f7-aad8-9c1fa3f0184b",
"name": "Success response",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
1240,
680
],
"parameters": {
"options": {
"responseCode": 200
},
"respondWith": "text",
"responseBody": "=Meeting booked for {{ $('Switch').item.json.body.start }}"
},
"typeVersion": 1.1
},
{
"id": "4e7c6af1-bddf-4ea0-ad9a-e1921d53414c",
"name": "Switch",
"type": "n8n-nodes-base.switch",
"position": [
840,
840
],
"parameters": {
"rules": {
"values": [
{
"outputKey": "Book meeting",
"conditions": {
"options": {
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"operator": {
"type": "boolean",
"operation": "true",
"singleValue": true
},
"leftValue": "={{ $json.body.attendee_name && $json.body.start && $json.body.attendee_phone && $json.body.attendee_email && $json.body.attendee_company && $json.body.notes ? true : false }}",
"rightValue": ""
}
]
},
"renameOutput": true
},
{
"outputKey": "Insufficient data",
"conditions": {
"options": {
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "44b01bcd-81b0-4d03-a11b-4481132b2ce1",
"operator": {
"type": "boolean",
"operation": "false",
"singleValue": true
},
"leftValue": "={{ $json.body.attendee_name && $json.body.start && $json.body.attendee_phone && $json.body.attendee_email && $json.body.attendee_company && $json.body.notes ? true : false }}",
"rightValue": ""
}
]
},
"renameOutput": true
}
]
},
"options": {}
},
"typeVersion": 3.1
},
{
"id": "267a71ac-8769-4db4-9017-97b3dd83141f",
"name": "Webhook",
"type": "n8n-nodes-base.webhook",
"position": [
660,
840
],
"parameters": {
"path": "validate-booking-1234-abcd",
"options": {},
"httpMethod": "POST",
"responseMode": "responseNode",
"authentication": "headerAuth"
},
"credentials": {
"httpHeaderAuth": {
"name": "<your credential>"
}
},
"typeVersion": 2
},
{
"id": "dac5a66e-5fad-4637-8640-29bc88f53038",
"name": "Create booking",
"type": "n8n-nodes-base.httpRequest",
"position": [
1060,
680
],
"parameters": {
"url": "https://api.cal.com/v2/bookings",
"method": "POST",
"options": {},
"jsonBody": "={\n \"attendee\": {\n \"language\": \"en\",\n \"name\": \"{{ $json.body.attendee_name }}\",\n \"timeZone\": \"{{ $json.body.attendee_timezone }}\",\n \"email\": \"{{ $json.body.attendee_email }}\",\n \"phoneNumber\": \"{{ $json.body.attendee_phone }}\"\n },\n \"start\": \"{{ $json.body.start }}\",\n \"eventTypeId\": {{ $json.body.eventTypeId }},\n \"bookingFieldsResponses\": {\n \"phone\": \"{{ $json.body.attendee_phone }}\",\n \"company\": \"{{ $json.body.attendee_company }}\",\n \"notes\": \"{{ $json.body.notes }}\"\n }\n}",
"sendBody": true,
"sendHeaders": true,
"specifyBody": "json",
"headerParameters": {
"parameters": [
{
"name": "Authorization",
"value": "Bearer YOUR_TOKEN_HERE"
},
{
"name": "Content-Type",
"value": "application/json"
},
{
"name": "cal-api-version",
"value": "2024-08-13"
}
]
}
},
"typeVersion": 4.2
}
],
"connections": {
"Switch": {
"main": [
[
{
"node": "Create booking",
"type": "main",
"index": 0
}
],
[
{
"node": "Insufficient data response",
"type": "main",
"index": 0
}
]
]
},
"Webhook": {
"main": [
[
{
"node": "Switch",
"type": "main",
"index": 0
}
]
]
},
"Create booking": {
"main": [
[
{
"node": "Success response",
"type": "main",
"index": 0
}
]
]
}
}
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
httpHeaderAuth
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About this workflow
This is a specific use case. The ElevenLabs guide for Cal.com bookings is comprehensive but I was having trouble with the booking API request. So I built a simple workflow to validate the request and handle the booking creation.
Source: https://n8n.io/workflows/5665/ — original creator credit. Request a take-down →
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