This workflow follows the Agent → Google Calendar Tool recipe pattern — see all workflows that pair these two integrations.
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 →
{
"name": "My workflow 43",
"nodes": [
{
"parameters": {
"httpMethod": "POST",
"path": "call",
"responseMode": "responseNode",
"options": {}
},
"type": "n8n-nodes-base.webhook",
"typeVersion": 2,
"position": [
0,
0
],
"id": "c8af1278-9145-4da5-a09c-0623ffbf83ae",
"name": "Call",
"disabled": true
},
{
"parameters": {
"method": "POST",
"url": "https://services.leadconnectorhq.com/hooks/t9Oq9bMWtOjZsfpDCFVa/webhook-trigger/9611e35b-e3ea-4693-9571-9d5a1d4a7f3e",
"sendBody": true,
"bodyParameters": {
"parameters": [
{
"name": "name",
"value": "={{ $json.body.name }}"
},
{
"name": "key",
"value": "call"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
220,
0
],
"id": "c4a6e546-63f0-41da-98b1-fc25782bfe2a",
"name": "HTTP Request"
},
{
"parameters": {
"respondWith": "text",
"responseBody": "Call has been successfully initiated",
"options": {}
},
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1.1,
"position": [
440,
0
],
"id": "8770dc95-49c0-4750-90f6-7e3dae803d39",
"name": "Respond to Webhook2"
},
{
"parameters": {
"respondWith": "text",
"responseBody": "={{ $json.output }}",
"options": {}
},
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1.1,
"position": [
660,
500
],
"id": "62531f92-d2e3-4bf9-8a0e-665f4f71f984",
"name": "Respond to Webhook3"
},
{
"parameters": {
"promptType": "define",
"text": "={{ $json.body.message }}",
"options": {
"systemMessage": "=You are a highly efficient AI assistant designed to manage calendar events and ensure seamless communication with attendees.\n\nToday\u2019s date: {{ $now }}\nYour primary functions:\n1. Searching, creating, and updating events\n2. Create or update a row in the Google Sheet with the calendar title, description, ID, and length\nSearch First \u2013 Always search for an existing event before creating a new one.\nNo Duplicates \u2013 If an event already exists and needs modifications, update it instead of creating a new one.\nRelative Dates \u2013 Ensure new events are scheduled relative to today\u2019s date.\nConfirmation Output \u2013 Always return a clear response with event details, including a direct link to the calendar event.\nAutomated Google Sheets Notification \u2013 When a new event is created or updated, automatically send a data to the google sheet.\nDo not create new calendar events or new email threads if the user wants to change or update an existing an existing calendar event\nIf there's no time provided for the calendar invite, please assume it's 1 hour in length\nOutput Format:\nIf searching: Display matching events or indicate none were found.\nIf creating: Confirm the event details, provide the calendar link, and trigger an email notification to the attendee.\nIf updating: Confirm the changes made, provide the updated calendar link, and send an update email by replying to the existing email thread.\nStay efficient, accurate, and proactive in communication while avoiding unnecessary event duplication."
}
},
"type": "@n8n/n8n-nodes-langchain.agent",
"typeVersion": 1.7,
"position": [
220,
500
],
"id": "b5d2a459-1ef9-4ec8-b355-fedfe01077df",
"name": "AI Agent1"
},
{
"parameters": {
"operation": "update",
"calendar": {
"__rl": true,
"value": "e65463fc466fd521dc1ecc1964b4d6dbac77710e2a00f0a73b597f41477d9def@group.calendar.google.com",
"mode": "list",
"cachedResultName": "AI Agent"
},
"eventId": "={{ $fromAI(\"eventID\", \"ID of event\") }}",
"updateFields": {
"end": "={{ $fromAI(\"endTime\", \"end time of event\") }}",
"start": "={{ $fromAI(\"startTime\", \"start time of event\") }}"
}
},
"type": "n8n-nodes-base.googleCalendarTool",
"typeVersion": 1.3,
"position": [
680,
720
],
"id": "9f9dbd5b-cc42-4cdf-9c4c-8e23ccb0da17",
"name": "Google Calendar2",
"credentials": {
"googleCalendarOAuth2Api": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"calendar": {
"__rl": true,
"value": "e65463fc466fd521dc1ecc1964b4d6dbac77710e2a00f0a73b597f41477d9def@group.calendar.google.com",
"mode": "list",
"cachedResultName": "AI Agent"
},
"start": "={{ $fromAI(\"start\", \"this is the start time of the event\") }}",
"end": "={{ $fromAI(\"end\", \"This is the end time of the event\") }}",
"additionalFields": {
"attendees": [],
"summary": "={{ $fromAI(\"summary\", \"this is the summary of th eve t\") }}"
}
},
"type": "n8n-nodes-base.googleCalendarTool",
"typeVersion": 1.3,
"position": [
500,
720
],
"id": "15576b56-2e57-4baf-86d1-f8cb21406f85",
"name": "Google Calendar1",
"credentials": {
"googleCalendarOAuth2Api": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"operation": "getAll",
"calendar": {
"__rl": true,
"value": "e65463fc466fd521dc1ecc1964b4d6dbac77710e2a00f0a73b597f41477d9def@group.calendar.google.com",
"mode": "list",
"cachedResultName": "AI Agent"
},
"timeMax": "={{ $now.plus({ day: 1 }) }}",
"options": {}
},
"type": "n8n-nodes-base.googleCalendarTool",
"typeVersion": 1.3,
"position": [
340,
720
],
"id": "409b2d31-a37c-4b57-8c2a-aad31f3834df",
"name": "Google Calendar",
"credentials": {
"googleCalendarOAuth2Api": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4o-mini"
},
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"typeVersion": 1.2,
"position": [
40,
720
],
"id": "4a87037a-ed8c-49d3-9bb2-ff138a6a4361",
"name": "OpenAI Chat Model",
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"respondWith": "text",
"responseBody": "Invoice has been successfully sent",
"options": {}
},
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1.1,
"position": [
440,
160
],
"id": "851ecde8-0a6a-4aa6-a37c-d50c6afeb824",
"name": "Respond to Webhook1"
},
{
"parameters": {
"respondWith": "text",
"responseBody": "Line items have been successfully parsed and added to the Google Sheet",
"options": {}
},
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1.1,
"position": [
660,
340
],
"id": "82add9de-0b5d-40d6-b603-c8b026177660",
"name": "Respond to Webhook"
},
{
"parameters": {
"fieldToSplitOut": "body.items",
"options": {}
},
"type": "n8n-nodes-base.splitOut",
"typeVersion": 1,
"position": [
220,
340
],
"id": "ca87d750-4acb-4a1f-8272-03e6670a4555",
"name": "Split Out"
},
{
"parameters": {
"method": "POST",
"url": "https://services.leadconnectorhq.com/hooks/t9Oq9bMWtOjZsfpDCFVa/webhook-trigger/9611e35b-e3ea-4693-9571-9d5a1d4a7f3e",
"sendBody": true,
"bodyParameters": {
"parameters": [
{
"name": "name",
"value": "Jono Catliff"
},
{
"name": "key",
"value": "invoice"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
220,
160
],
"id": "becb6626-51a4-4a2c-9e7c-208f5f0723aa",
"name": "HTTP Request1"
},
{
"parameters": {
"httpMethod": "POST",
"path": "agent",
"responseMode": "responseNode",
"options": {}
},
"type": "n8n-nodes-base.webhook",
"typeVersion": 2,
"position": [
0,
500
],
"id": "480c5b91-d3d6-4938-ac4f-c0346889a53e",
"name": "AI Agent"
},
{
"parameters": {
"httpMethod": "POST",
"path": "receipt",
"responseMode": "responseNode",
"options": {}
},
"type": "n8n-nodes-base.webhook",
"typeVersion": 2,
"position": [
0,
340
],
"id": "1ac10d93-33c6-4a71-90e8-0b21afc51a52",
"name": "Parse Receipt",
"disabled": true
},
{
"parameters": {
"httpMethod": "POST",
"path": "invoice",
"responseMode": "responseNode",
"options": {}
},
"type": "n8n-nodes-base.webhook",
"typeVersion": 2,
"position": [
0,
160
],
"id": "42fd3327-0a1d-484c-92da-95f5d1a824bf",
"name": "Send Invoice",
"disabled": true
},
{
"parameters": {
"operation": "append",
"documentId": {
"__rl": true,
"value": "1rP_RrQERBF_J5yMu-zgHI3ezaOlB8r5T4yOHqyMN2ys",
"mode": "list",
"cachedResultName": "Receipts - ChatGPT",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1rP_RrQERBF_J5yMu-zgHI3ezaOlB8r5T4yOHqyMN2ys/edit?usp=drivesdk"
},
"sheetName": {
"__rl": true,
"value": "gid=0",
"mode": "list",
"cachedResultName": "Sheet1",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1rP_RrQERBF_J5yMu-zgHI3ezaOlB8r5T4yOHqyMN2ys/edit#gid=0"
},
"columns": {
"mappingMode": "defineBelow",
"value": {
"Quantity": "={{ $json.quantity }}",
"Tax": "={{ $json.tax }}",
"Total": "={{ $json.total }}",
"Description": "={{ $json.description }}",
"Date": "={{ $('Parse Receipt').item.json.body.date }}",
"Title": "={{ $('Parse Receipt').item.json.body.title }}",
"Invoice #": "={{ $('Parse Receipt').item.json.body.invoice_number }}"
},
"matchingColumns": [],
"schema": [
{
"id": "Invoice #",
"displayName": "Invoice #",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "Title",
"displayName": "Title",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "Description",
"displayName": "Description",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "Quantity",
"displayName": "Quantity",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "Tax",
"displayName": "Tax",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "Total",
"displayName": "Total",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "Date",
"displayName": "Date",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
}
],
"attemptToConvertTypes": false,
"convertFieldsToString": false
},
"options": {}
},
"type": "n8n-nodes-base.googleSheets",
"typeVersion": 4.5,
"position": [
440,
340
],
"id": "2d1b91f1-1f0d-4d03-9ddf-88222a19033e",
"name": "Google Sheets",
"credentials": {
"googleSheetsOAuth2Api": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"sessionIdType": "customKey",
"sessionKey": "={{ $json.headers['openai-conversation-id'] }}"
},
"type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
"typeVersion": 1.3,
"position": [
180,
720
],
"id": "d987cfec-1c3e-4c8b-a66c-13a0c8bc2a62",
"name": "Window Buffer Memory"
}
],
"connections": {
"Call": {
"main": [
[
{
"node": "HTTP Request",
"type": "main",
"index": 0
}
]
]
},
"HTTP Request": {
"main": [
[
{
"node": "Respond to Webhook2",
"type": "main",
"index": 0
}
]
]
},
"AI Agent1": {
"main": [
[
{
"node": "Respond to Webhook3",
"type": "main",
"index": 0
}
]
]
},
"Google Calendar2": {
"ai_tool": [
[
{
"node": "AI Agent1",
"type": "ai_tool",
"index": 0
}
]
]
},
"Google Calendar1": {
"ai_tool": [
[
{
"node": "AI Agent1",
"type": "ai_tool",
"index": 0
}
]
]
},
"Google Calendar": {
"ai_tool": [
[
{
"node": "AI Agent1",
"type": "ai_tool",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "AI Agent1",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Split Out": {
"main": [
[
{
"node": "Google Sheets",
"type": "main",
"index": 0
}
]
]
},
"HTTP Request1": {
"main": [
[
{
"node": "Respond to Webhook1",
"type": "main",
"index": 0
}
]
]
},
"AI Agent": {
"main": [
[
{
"node": "AI Agent1",
"type": "main",
"index": 0
}
]
]
},
"Parse Receipt": {
"main": [
[
{
"node": "Split Out",
"type": "main",
"index": 0
}
]
]
},
"Send Invoice": {
"main": [
[
{
"node": "HTTP Request1",
"type": "main",
"index": 0
}
]
]
},
"Google Sheets": {
"main": [
[
{
"node": "Respond to Webhook",
"type": "main",
"index": 0
}
]
]
},
"Window Buffer Memory": {
"ai_memory": [
[
{
"node": "AI Agent1",
"type": "ai_memory",
"index": 0
}
]
]
}
},
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "be23abc5-8645-48ab-814a-438baeea4aaa",
"meta": {
"templateCredsSetupCompleted": true
},
"id": "YrjxPjw0Y0cSp04O",
"tags": []
}
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.
googleCalendarOAuth2ApigoogleSheetsOAuth2ApiopenAiApi
Pro
For the full experience including quality scoring and batch install features for each workflow upgrade to Pro
How this works
Streamline your calendar management by automating event scheduling and updates through a simple webhook trigger, saving hours of manual coordination for busy professionals like event organisers or team leads. This workflow processes incoming requests to check availability, create or modify Google Calendar events, and deliver instant confirmations, ensuring seamless integration with your existing tools. The core step involves an AI agent intelligently querying and acting on your Google Calendar data, powered by OpenAI for natural language understanding, while HTTP requests handle external communications.
Use this workflow when you need quick, automated responses to scheduling queries from forms, apps, or APIs, such as booking meetings via a website. Avoid it for high-volume enterprise needs requiring advanced security or custom logic beyond basic AI handling. Common variations include adding Google Sheets integration to log event details or incorporating memory buffers for conversation context in multi-turn interactions.
About this workflow
My workflow 43. Uses httpRequest, respondToWebhook, agent, googleCalendarTool. Webhook trigger; 18 nodes.
Source: https://github.com/Zie619/n8n-workflows — original creator credit. Request a take-down →
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