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": "bd1dae81-daea-4539-bf1d-38eb9a2bd2f0",
"name": "Gmail Trigger",
"type": "n8n-nodes-base.gmailTrigger",
"position": [
500,
560
],
"parameters": {
"filters": {
"readStatus": "unread",
"includeSpamTrash": false
},
"pollTimes": {
"item": [
{
"mode": "everyMinute"
}
]
}
},
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "a97c3ab1-6fbc-441e-af11-3c746936013b",
"name": "Chat OpenAI",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
720,
740
],
"parameters": {
"model": "gpt-4",
"options": {
"temperature": 0.1
}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "a1205598-7cd4-4278-ad53-0cfc7c7947ff",
"name": "Workflow Tool",
"type": "@n8n/n8n-nodes-langchain.toolWorkflow",
"position": [
1580,
759
],
"parameters": {
"name": "Calendar_Availability",
"workflowId": "={{ $workflow.id }}",
"description": "Call this tool to get my calendar availability as stringified JSON array."
},
"typeVersion": 1
},
{
"id": "5ba2c2b0-2218-45d2-a417-f86c80643397",
"name": "Chat OpenAI1",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
1420,
759
],
"parameters": {
"model": "gpt-4",
"options": {
"temperature": 0
}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "012835ec-c20a-4b84-bed8-67f6aac30698",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
460,
460
],
"parameters": {
"width": 616.8060552874073,
"height": 410.24791575252334,
"content": "## Check if incoming email is about appointment\nWe use LLM to check subject and body of the email and determine if it's an appointment request. "
},
"typeVersion": 1
},
{
"id": "ceaa4f77-acc8-437e-9d61-16cf344a7748",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
1340,
460
],
"parameters": {
"width": 676.1951194231482,
"height": 241.70645019745504,
"content": "## Get calendar availability and compose a response\nMake sure to update the Workflow ID if you are running this as 2 workflows"
},
"typeVersion": 1
},
{
"id": "499def23-7dec-4131-91fd-326b1b824762",
"name": "Google Calendar",
"type": "n8n-nodes-base.googleCalendar",
"position": [
680,
1120
],
"parameters": {
"options": {
"timeMax": "={{ $now.plus(1, 'month').toISO() }}",
"timeMin": "={{ $now.minus(1, 'day').toISO() }}",
"singleEvents": true
},
"calendar": {
"__rl": true,
"mode": "list",
"value": "your_email@gmail.com",
"cachedResultName": "your_email@gmail.com"
},
"operation": "getAll",
"returnAll": true
},
"credentials": {
"googleCalendarOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "0f5f43fa-3386-4682-b620-21db35651d3b",
"name": "Execute Workflow Trigger",
"type": "n8n-nodes-base.executeWorkflowTrigger",
"position": [
460,
1120
],
"parameters": {},
"typeVersion": 1
},
{
"id": "8b2b82b9-c11f-4e7f-ab23-16ea5e395e11",
"name": "Format response",
"type": "n8n-nodes-base.itemLists",
"position": [
1560,
1120
],
"parameters": {
"include": "allFieldsExcept",
"options": {},
"aggregate": "aggregateAllItemData",
"operation": "concatenateItems",
"fieldsToExclude": "sort",
"destinationFieldName": "response"
},
"typeVersion": 3
},
{
"id": "ac363d85-5c6e-4a9f-9cfc-ecc15a325b01",
"name": "Stringify Response",
"type": "n8n-nodes-base.set",
"position": [
1780,
1120
],
"parameters": {
"values": {
"string": [
{
"name": "response",
"value": "={{ JSON.stringify($json.response) }}"
}
]
},
"options": {},
"keepOnlySet": true
},
"typeVersion": 2
},
{
"id": "399c5bc4-c8bd-4d0b-942a-9889447880a9",
"name": "Extract start, end and name",
"type": "n8n-nodes-base.set",
"position": [
1100,
1120
],
"parameters": {
"values": {
"string": [
{
"name": "start",
"value": "={{ DateTime.fromISO($json.start.dateTime).toLocaleString(DateTime.DATE_HUGE) }}, {{ DateTime.fromISO($json.start.dateTime).toLocaleString(DateTime.TIME_24_WITH_SHORT_OFFSET) }}"
},
{
"name": "end",
"value": "={{ DateTime.fromISO($json.end.dateTime).toLocaleString(DateTime.DATE_HUGE) }}, {{ DateTime.fromISO($json.end.dateTime).toLocaleString(DateTime.TIME_24_WITH_SHORT_OFFSET) }}"
},
{
"name": "name",
"value": "={{ $json.summary }}"
},
{
"name": "sort",
"value": "={{ $json.start.dateTime }}"
}
]
},
"options": {},
"keepOnlySet": true
},
"typeVersion": 2
},
{
"id": "a39b6c7d-fdcc-452d-9ef5-50b038153330",
"name": "Filter only confirmed and with set time",
"type": "n8n-nodes-base.filter",
"position": [
880,
1120
],
"parameters": {
"conditions": {
"string": [
{
"value1": "={{ $json.status }}",
"value2": "confirmed"
}
],
"boolean": [
{
"value1": "={{ $json.start.dateTime }}",
"value2": "={{ undefined }}",
"operation": "notEqual"
}
]
}
},
"typeVersion": 1
},
{
"id": "0e0a2be9-cde7-497d-94c5-180128382bb7",
"name": "Is appointment request",
"type": "n8n-nodes-base.if",
"position": [
1100,
560
],
"parameters": {
"conditions": {
"string": [
{
"value1": "={{ $json.is_appointment }}",
"value2": "true"
}
],
"boolean": [
{
"value1": "={{ $json.is_appointment }}",
"value2": true
}
]
},
"combineOperation": "any"
},
"typeVersion": 1
},
{
"id": "a6e11f63-a56a-4fe0-91c8-0dde2720e905",
"name": "Classify appointment",
"type": "@n8n/n8n-nodes-langchain.chainLlm",
"position": [
720,
560
],
"parameters": {
"prompt": "=Please evaluate the following email to determine if it suggests scheduling a meeting or a call:\nSubject: {{ encodeURI($json.Subject) }}\nSnippet: {{ encodeURI($json.snippet) }}\nIndicate your assessment by responding with \"true\" if it suggests a meeting or call, or \"false\" otherwise. Use lowercase for your response.\n"
},
"typeVersion": 1
},
{
"id": "b6411b14-67f6-4195-a834-60a4dc5e4851",
"name": "Structured Output Parser",
"type": "@n8n/n8n-nodes-langchain.outputParserStructured",
"position": [
880,
740
],
"parameters": {
"jsonSchema": "{\n \"type\": \"object\",\n \"properties\": {\n \"is_appointment\": {\n \"type\": \"boolean\"\n }\n }\n}"
},
"typeVersion": 1
},
{
"id": "96248431-290b-4fb1-94a3-714e7c0008d4",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
640,
1058.6115582634225
],
"parameters": {
"width": 810.4923211935056,
"height": 224.60561166142082,
"content": "### Get all query google events for the next month and extract relevant data"
},
"typeVersion": 1
},
{
"id": "48bc7c0c-0b74-418e-8c5c-6a6faf24722c",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
1513,
1060
],
"parameters": {
"width": 444.4130232558142,
"height": 220.42397542781927,
"content": "### Wrap the result in `response` object and return "
},
"typeVersion": 1
},
{
"id": "a68f7b27-1891-46c7-92b2-650cc17f94d6",
"name": "Sort",
"type": "n8n-nodes-base.itemLists",
"position": [
1320,
1120
],
"parameters": {
"options": {},
"operation": "sort",
"sortFieldsUi": {
"sortField": [
{
"fieldName": "sort"
}
]
}
},
"typeVersion": 3
},
{
"id": "2b5b5855-6d3f-4405-9f48-5d6c4ee2475b",
"name": "Mark as read",
"type": "n8n-nodes-base.gmail",
"position": [
1840,
739
],
"parameters": {
"messageId": "={{ $('Gmail Trigger').item.json.id }}",
"operation": "markAsRead"
},
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
},
"typeVersion": 2.1
},
{
"id": "accbe2df-367a-4bd3-a383-12ee79062e12",
"name": "Send Reply",
"type": "n8n-nodes-base.gmail",
"position": [
1840,
539
],
"parameters": {
"message": "={{ $json.output }}",
"options": {
"replyToSenderOnly": true
},
"messageId": "={{ $('Gmail Trigger').item.json.id }}",
"operation": "reply"
},
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
},
"typeVersion": 2
},
{
"id": "66d62337-d0c1-4744-b169-8e95c1d1492a",
"name": "Agent",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
1400,
539
],
"parameters": {
"text": "=Sender: {{ $('Gmail Trigger').item.json.From }}\\nSubject: {{ $('Gmail Trigger').item.json.Subject }}\\nEmail Text: {{ $('Gmail Trigger').item.json.snippet }}",
"options": {
"systemMessage": "=You are an email scheduling assistant. Based on the received email, check my availability and propose an appropriate response. \nAim to get a specific time, rather than just a day. When checking my availability, make sure that there's enough time in between meetings.\nIf I'm not available, ALWAYS propose a new time based on my availability. When proposing a new time, always leave 15 minutes buffer from previous meeting.\nToday date and time is: {{ $now.toISO() }}."
}
},
"typeVersion": 1
}
],
"connections": {
"Sort": {
"main": [
[
{
"node": "Format response",
"type": "main",
"index": 0
}
]
]
},
"Agent": {
"main": [
[
{
"node": "Send Reply",
"type": "main",
"index": 0
},
{
"node": "Mark as read",
"type": "main",
"index": 0
}
]
]
},
"Chat OpenAI": {
"ai_languageModel": [
[
{
"node": "Classify appointment",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Chat OpenAI1": {
"ai_languageModel": [
[
{
"node": "Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Gmail Trigger": {
"main": [
[
{
"node": "Classify appointment",
"type": "main",
"index": 0
}
]
]
},
"Workflow Tool": {
"ai_tool": [
[
{
"node": "Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"Format response": {
"main": [
[
{
"node": "Stringify Response",
"type": "main",
"index": 0
}
]
]
},
"Google Calendar": {
"main": [
[
{
"node": "Filter only confirmed and with set time",
"type": "main",
"index": 0
}
]
]
},
"Classify appointment": {
"main": [
[
{
"node": "Is appointment request",
"type": "main",
"index": 0
}
]
]
},
"Is appointment request": {
"main": [
[
{
"node": "Agent",
"type": "main",
"index": 0
}
]
]
},
"Execute Workflow Trigger": {
"main": [
[
{
"node": "Google Calendar",
"type": "main",
"index": 0
}
]
]
},
"Structured Output Parser": {
"ai_outputParser": [
[
{
"node": "Classify appointment",
"type": "ai_outputParser",
"index": 0
}
]
]
},
"Extract start, end and name": {
"main": [
[
{
"node": "Sort",
"type": "main",
"index": 0
}
]
]
},
"Filter only confirmed and with set time": {
"main": [
[
{
"node": "Extract start, end and name",
"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.
gmailOAuth2googleCalendarOAuth2ApiopenAiApi
About this workflow
Suggest Meeting Slots Using Ai. Uses gmailTrigger, lmChatOpenAi, toolWorkflow, stickyNote. Event-driven trigger; 21 nodes.
Source: https://github.com/Zie619/n8n-workflows — original creator credit. Request a take-down →