TakatoYamada This workflow corresponds to n8n.io template #16334 — we link there as the canonical source.
This workflow follows the Chainllm → Gmail 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 →
{
"id": "0bc688acd333c182",
"name": "Build an AI meeting prep brief from Google Calendar to email using OpenAI",
"tags": [
{
"name": "google-calendar"
},
{
"name": "meeting-prep"
},
{
"name": "productivity"
},
{
"name": "scheduling"
},
{
"name": "gmail"
},
{
"name": "daily-brief"
},
{
"name": "openai"
},
{
"name": "ai"
}
],
"nodes": [
{
"id": "8db86a1a-7f98-4c87-9366-e44e8c4d7551",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-640,
-320
],
"parameters": {
"width": 480,
"height": 688,
"content": "## Build an AI meeting prep brief from Google Calendar to email using OpenAI\n\n## How it works\n\n1. Triggers every morning to initiate the workflow.\n2. Fetches today's events from Google Calendar.\n3. Combines events and checks if there are any meetings.\n4. Uses OpenAI to write a preparation brief if meetings are present.\n5. Formats and sends the brief via email and optionally posts to Slack.\n\n## Setup steps\n\n- [ ] Set up Google Calendar credentials in n8n.\n- [ ] Configure OpenAI API key for LLM chain node.\n- [ ] Integrate Gmail account for sending emails.\n- [ ] Optionally configure Slack credentials for brief posting.\n\n## Customization\n\nThe workflow can be adjusted to use different email or Slack formats."
},
"typeVersion": 1
},
{
"id": "10e47d2d-d940-4328-8c53-668b6133e3ac",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-80,
-128
],
"parameters": {
"color": 7,
"width": 432,
"height": 304,
"content": "## Trigger and fetch events\n\nStarts the workflow every morning and fetches events from Google Calendar."
},
"typeVersion": 1
},
{
"id": "3a964c6e-7a6c-4a94-ab61-283e51349dba",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
400,
-128
],
"parameters": {
"color": 7,
"width": 416,
"height": 496,
"content": "## Combine and check meetings\n\nAggregates the calendar events and checks if there are any meetings for today."
},
"typeVersion": 1
},
{
"id": "32e0db42-9ad7-41a5-bc32-1a864d09b7bf",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
864,
-192
],
"parameters": {
"color": 7,
"width": 432,
"height": 544,
"content": "## Generate and format brief\n\nUses AI to generate a meeting preparation brief and formats it for email."
},
"typeVersion": 1
},
{
"id": "e0798c0b-2ccb-4e6b-a7ef-44beced6861a",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
1344,
-320
],
"parameters": {
"color": 7,
"width": 240,
"height": 528,
"content": "## Email and optional Slack post\n\nEmails the prepared brief and optionally posts it to Slack."
},
"typeVersion": 1
},
{
"id": "04d178c2-2e59-4fad-93dc-4ae3aeab31ff",
"name": "When Day Starts at 7am",
"type": "n8n-nodes-base.scheduleTrigger",
"position": [
-40,
0
],
"parameters": {
"rule": {
"interval": [
{
"field": "days",
"triggerAtHour": 7
}
]
}
},
"typeVersion": 1.2
},
{
"id": "4ab6d18a-4fbf-4de6-b8ed-f5af5f5ee644",
"name": "Fetch Today's Calendar Events",
"type": "n8n-nodes-base.googleCalendar",
"position": [
200,
0
],
"parameters": {
"options": {
"orderBy": "startTime",
"timeMax": "={{ $now.endOf('day').toISO() }}",
"timeMin": "={{ $now.startOf('day').toISO() }}",
"singleEvents": true
},
"calendar": {
"__rl": true,
"mode": "list",
"value": "REPLACE_CALENDAR"
},
"operation": "getAll",
"returnAll": true
},
"typeVersion": 1.3
},
{
"id": "86ae1406-39aa-4ae2-927a-4acfcb834d26",
"name": "Aggregate Calendar Events",
"type": "n8n-nodes-base.aggregate",
"position": [
448,
0
],
"parameters": {
"options": {},
"aggregate": "aggregateAllItemData"
},
"typeVersion": 1
},
{
"id": "321f8c95-621b-484c-8ee7-a08abab10b23",
"name": "If Meetings Exist",
"type": "n8n-nodes-base.if",
"position": [
672,
0
],
"parameters": {
"conditions": {
"options": {
"typeValidation": "loose"
},
"combinator": "and",
"conditions": [
{
"operator": {
"type": "number",
"operation": "gte"
},
"leftValue": "={{ $json.data.length }}",
"rightValue": 1
}
]
}
},
"typeVersion": 2
},
{
"id": "8104c630-4edb-41b0-8255-2089f0bc9f1f",
"name": "Skip When No Meetings",
"type": "n8n-nodes-base.noOp",
"position": [
672,
208
],
"parameters": {},
"typeVersion": 1
},
{
"id": "788efc00-8cb1-479b-962c-7333744e1d00",
"name": "Generate Meeting Brief",
"type": "@n8n/n8n-nodes-langchain.chainLlm",
"position": [
912,
-64
],
"parameters": {
"text": "=You are an executive assistant preparing someone for their day. From today's calendar events below, write a one-line 'day at a glance', then for EACH meeting give: a clear objective, a 3-point agenda, 2-3 smart questions to ask, and what to prepare beforehand. Skip events with no attendees or that look like personal blocks.\n\nToday's events:\n{{ JSON.stringify($json.data).slice(0, 6000) }}",
"promptType": "define",
"hasOutputParser": true
},
"typeVersion": 1.5
},
{
"id": "f6367d0e-9ded-4c3b-a6c9-b5d876aea999",
"name": "Use GPT-4 Model",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
912,
208
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4o",
"cachedResultName": "gpt-4o"
},
"options": {
"temperature": 0.4
}
},
"typeVersion": 1.2
},
{
"id": "9d6551e8-3297-4eef-8a2b-918a6ac778d8",
"name": "Define Output Format",
"type": "@n8n/n8n-nodes-langchain.outputParserStructured",
"position": [
1136,
208
],
"parameters": {
"schemaType": "fromJson",
"jsonSchemaExample": "{\n \"overview\": \"You have 3 meetings today; the key one is the 2pm client review.\",\n \"meetings\": [\n {\n \"title\": \"Client review\",\n \"time\": \"14:00\",\n \"objective\": \"Agree next-quarter scope.\",\n \"agenda\": [\n \"Recap progress\",\n \"Open risks\",\n \"Next steps\"\n ],\n \"questions\": [\n \"What is your top priority for Q3?\"\n ],\n \"prepare\": [\n \"Pull the latest metrics deck.\"\n ]\n }\n ]\n}"
},
"typeVersion": 1.2
},
{
"id": "0d0bf381-fc12-4362-8304-12f2816e9619",
"name": "Set Brief Fields",
"type": "n8n-nodes-base.set",
"position": [
1152,
-64
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "04edba75-b4ac-4c57-a18b-af76da9cb1e3",
"name": "headline",
"type": "string",
"value": "=Meeting prep \u2014 {{ $now.format('yyyy-LL-dd') }}"
},
{
"id": "69c50a54-8125-4a01-92db-b40d904977f7",
"name": "overview",
"type": "string",
"value": "={{ $json.output.overview }}"
},
{
"id": "30a72a0c-0370-4083-973d-2e5f55efa2aa",
"name": "body",
"type": "string",
"value": "={{ ($json.output.meetings || []).map(m => '\u2014 ' + m.title + ' (' + m.time + ')\\nObjective: ' + m.objective + '\\nAsk: ' + (m.questions || []).join('; ') + '\\nPrep: ' + (m.prepare || []).join('; ')).join('\\n\\n') }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "b5e3bc53-b6d6-4191-890e-4938cd7682eb",
"name": "Send Brief via Gmail",
"type": "n8n-nodes-base.gmail",
"position": [
1392,
-112
],
"parameters": {
"sendTo": "you@example.com",
"message": "={{ $json.overview }}\n\n{{ $json.body }}",
"options": {},
"subject": "={{ $json.headline }}"
},
"typeVersion": 2.1
},
{
"id": "d5c470ac-23ea-42a2-b1a8-793a699a34e2",
"name": "Post Brief on Slack",
"type": "n8n-nodes-base.slack",
"position": [
1392,
64
],
"parameters": {
"text": "=:calendar: {{ $json.headline }}\n{{ $json.overview }}\n\n{{ $json.body }}",
"select": "channel",
"resource": "message",
"channelId": {
"__rl": true,
"mode": "name",
"value": "#daily"
},
"operation": "post",
"otherOptions": {}
},
"typeVersion": 2.2
}
],
"active": false,
"settings": {
"executionOrder": "v1"
},
"connections": {
"Use GPT-4 Model": {
"ai_languageModel": [
[
{
"node": "Generate Meeting Brief",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Set Brief Fields": {
"main": [
[
{
"node": "Send Brief via Gmail",
"type": "main",
"index": 0
}
]
]
},
"If Meetings Exist": {
"main": [
[
{
"node": "Generate Meeting Brief",
"type": "main",
"index": 0
}
],
[
{
"node": "Skip When No Meetings",
"type": "main",
"index": 0
}
]
]
},
"Define Output Format": {
"ai_outputParser": [
[
{
"node": "Generate Meeting Brief",
"type": "ai_outputParser",
"index": 0
}
]
]
},
"Generate Meeting Brief": {
"main": [
[
{
"node": "Set Brief Fields",
"type": "main",
"index": 0
}
]
]
},
"When Day Starts at 7am": {
"main": [
[
{
"node": "Fetch Today's Calendar Events",
"type": "main",
"index": 0
}
]
]
},
"Aggregate Calendar Events": {
"main": [
[
{
"node": "If Meetings Exist",
"type": "main",
"index": 0
}
]
]
},
"Fetch Today's Calendar Events": {
"main": [
[
{
"node": "Aggregate Calendar Events",
"type": "main",
"index": 0
}
]
]
}
}
}
Pro
For the full experience including quality scoring and batch install features for each workflow upgrade to Pro
About this workflow
This workflow accepts a URL via an n8n form, fetches and extracts the main text from the web page, uses OpenAI (GPT-4o) to generate a structured research card (summary, tags, quotes, actions, sentiment, reading time), then saves the result to Notion and logs it in Google Sheets.…
Source: https://n8n.io/workflows/16334/ — original creator credit. Request a take-down →
Related workflows
Workflows that share integrations, category, or trigger type with this one. All free to copy and import.
This n8n-powered workflow automates the entire lifecycle of real estate lead intake, qualification, routing, assignment, and reporting across multiple channels. It brings WhatsApp inquiries and websit
Gmail, Typeform Trigger, WhatsApp Trigger +8
My workflow 14. Uses rssFeedRead, chainLlm, lmChatOpenAi, openWeatherMap. Scheduled trigger; 40 nodes.
RSS Feed Read, Chain Llm, OpenAI Chat +6
This workflow builds an AI meeting assistant who sends information-dense pre-meeting notifications for a user's upcoming meetings. A scheduled trigger fires hourly and checks for upcoming meetings wit
Gmail, Google Calendar, Information Extractor +3
Ensure suppliers never miss a follow-up by automating overdue purchase order tracking and scheduling. 📦⏰ This workflow checks Airtable every weekday morning for open POs older than seven days without
Airtable, Slack, Google Calendar +6
This workflow runs daily, pulls the latest post from an RSS feed, and uses OpenAI to repurpose it into an SEO blog rewrite, a LinkedIn post, and an X/Twitter thread, then logs the drafts to Google She
RSS Feed Read, Chain Llm, OpenAI Chat +4