Jakkrapat Ampring This workflow corresponds to n8n.io template #3772 — we link there as the canonical source.
This workflow follows the Agent → 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": "m8gr0YZgCx5Qrsia",
"meta": {
"templateCredsSetupCompleted": true
},
"name": "(G) - Email Classification",
"tags": [],
"nodes": [
{
"id": "0226578d-4741-42f2-8a7b-c750f75be78d",
"name": "Gmail Trigger",
"type": "n8n-nodes-base.gmailTrigger",
"position": [
0,
0
],
"parameters": {
"simple": false,
"filters": {},
"options": {},
"pollTimes": {
"item": [
{
"mode": "everyMinute"
}
]
}
},
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
},
"typeVersion": 1.2
},
{
"id": "48d0ee27-d4d6-4db4-843c-d9c18b934945",
"name": "Google Gemini Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini",
"position": [
220,
320
],
"parameters": {
"options": {},
"modelName": "models/gemini-2.0-flash-001"
},
"credentials": {
"googlePalmApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "d7e8bed4-cadc-41e3-b793-cc8affb177cc",
"name": "AI Agent",
"type": "@n8n/n8n-nodes-langchain.agent",
"disabled": true,
"position": [
1420,
60
],
"parameters": {
"text": "=Here's the email context: {{ $('Classification Agent').item.json.text }}",
"options": {
"systemMessage": "You are my personal assistant for Kajonkietsuksa School.\nYour role is to help me with any work-related tasks.\nOne of your main responsibilities is to write professional and polite reply emails whenever I receive an email in my inbox. Act as me, don't include something like \"here's a potential reply email or other\"\n\nWhen writing a reply email:\n\nStart by acknowledging the sender's message.\n\nAnswer their questions or address their requests clearly and directly.\n\nMaintain a polite, professional, and helpful tone.\n\nKeep the language simple and easy to understand.\n\nIf additional action is required from me, mention that I will get back to them soon.\n\nAlways end the email with a courteous closing line, such as \"Thank you\" or \"Best regards.\"\n\nKeep your writing style consistent with a warm yet formal communication style that reflects the reputation of Kajonkietsuksa School.\n\n"
},
"promptType": "define"
},
"typeVersion": 1.8
},
{
"id": "3b5cabb7-346f-4b69-b3f4-c61e78e2d8c7",
"name": "Groq Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatGroq",
"disabled": true,
"position": [
1440,
180
],
"parameters": {
"model": "meta-llama/llama-4-scout-17b-16e-instruct",
"options": {}
},
"credentials": {
"groqApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "43984fb2-7a26-4e13-95ee-c29f0d9f2f24",
"name": "Gmail3",
"type": "n8n-nodes-base.gmail",
"disabled": true,
"position": [
1780,
60
],
"parameters": {
"message": "={{ $json.output }}",
"options": {},
"subject": "=Re: {{ $('Gmail Trigger').item.json.headers.subject }}",
"resource": "draft"
},
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
},
"typeVersion": 2.1
},
{
"id": "c269ec5e-f882-4458-ab52-46b719731309",
"name": "Classification Agent",
"type": "@n8n/n8n-nodes-langchain.textClassifier",
"position": [
240,
0
],
"parameters": {
"options": {
"systemPromptTemplate": "Please classify the text provided by the user into one of the following categories: {categories}, and use the provided formatting instructions below. Don't explain, and only output the json."
},
"inputText": "={{ $json.text || $json.html }}",
"categories": {
"categories": [
{
"category": "High Priority",
"description": "Emails requiring immediate attention or action, typically from key stakeholders, clients, or decision-makers. These emails often contain time-sensitive requests, deadlines, or escalated issues. Keywords: urgent, ASAP, immediate, deadline, action required, high priority"
},
{
"category": "KS Work Related",
"description": "Anything related to my school or education. Keyword: Kajonkietsuksa School, Kajonkietsuksa, School"
},
{
"category": "Promotion",
"description": "Anything related to updating on promotions. Keywords: newsletter, promotion, offer, sale, campaign, marketing, launch"
},
{
"category": "Other",
"description": "If you don't know what category is this email."
}
]
}
},
"typeVersion": 1
},
{
"id": "17be38df-c225-4d19-81ec-e205ff4b9f3c",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
60,
260
],
"parameters": {
"color": 4,
"width": 300,
"height": 80,
"content": "### 2) Change to your desire LLMs"
},
"typeVersion": 1
},
{
"id": "3e8ac267-c2ac-49cb-ad53-536510faa1a4",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-80,
-60
],
"parameters": {
"color": 4,
"content": "### 1) Change to your gmail's credential"
},
"typeVersion": 1
},
{
"id": "f5e2c92d-3335-4ed0-915e-f7edeb0b5a92",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
220,
-380
],
"parameters": {
"color": 4,
"width": 340,
"content": "### 3) Login to your gmail inbox\n* Create a label with \"+\" icon\n* Change the color of your choice"
},
"typeVersion": 1
},
{
"id": "4a8a7424-f9dd-42b1-b803-5d0dbe076956",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
220,
-160
],
"parameters": {
"color": 4,
"width": 320,
"content": "### 4) Agent instruction\n* Input the category name that you just created in gmail.\n* Description = Tell agent about how should it classify your email. Keywords can be useful to let your agent classify the email context."
},
"typeVersion": 1
},
{
"id": "24c7ef4e-7a68-4240-980b-02b994300084",
"name": "Add Label Promotion",
"type": "n8n-nodes-base.gmail",
"position": [
700,
200
],
"parameters": {
"labelIds": [
"Label_4917715854276709190"
],
"messageId": "={{ $json.id }}",
"operation": "addLabels"
},
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
},
"typeVersion": 2.1
},
{
"id": "759f8cbe-4674-49e5-a52b-2acf208ffb22",
"name": "Add Label (KS Work Related)",
"type": "n8n-nodes-base.gmail",
"position": [
700,
0
],
"parameters": {
"labelIds": [
"Label_4956837555783205638"
],
"messageId": "={{ $json.id }}",
"operation": "addLabels"
},
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
},
"typeVersion": 2.1
},
{
"id": "d07fe962-16c0-401a-b194-5ce7e6ad9746",
"name": "Add Label (High Priority)",
"type": "n8n-nodes-base.gmail",
"position": [
700,
-200
],
"parameters": {
"labelIds": [
"Label_3750994713301985229"
],
"messageId": "={{ $json.id }}",
"operation": "addLabels"
},
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
},
"typeVersion": 2.1
},
{
"id": "7d0c9bd5-6150-4afa-9344-8bb3c1a6b01c",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
660,
-320
],
"parameters": {
"color": 4,
"width": 320,
"content": "### 5) Add Label Nodes\n* In this option \"Label Names or IDs\" -> Select the category to match with the Classification Agent Node."
},
"typeVersion": 1
},
{
"id": "d57ecacb-a479-4bf7-b9b4-b9e14e30dcd7",
"name": "Sticky Note5",
"type": "n8n-nodes-base.stickyNote",
"position": [
980,
60
],
"parameters": {
"color": 4,
"width": 220,
"content": "### 6) Add-on\n* You can add more category of your choice!"
},
"typeVersion": 1
}
],
"active": true,
"settings": {
"executionOrder": "v1"
},
"versionId": "c94df4ec-be75-449f-82fa-4e1f8878104a",
"connections": {
"AI Agent": {
"main": [
[
{
"node": "Gmail3",
"type": "main",
"index": 0
}
]
]
},
"Gmail Trigger": {
"main": [
[
{
"node": "Classification Agent",
"type": "main",
"index": 0
}
]
]
},
"Groq Chat Model": {
"ai_languageModel": [
[
{
"node": "AI Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Classification Agent": {
"main": [
[
{
"node": "Add Label (High Priority)",
"type": "main",
"index": 0
}
],
[
{
"node": "Add Label (KS Work Related)",
"type": "main",
"index": 0
}
],
[
{
"node": "Add Label Promotion",
"type": "main",
"index": 0
}
]
]
},
"Google Gemini Chat Model": {
"ai_languageModel": [
[
{
"node": "Classification Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Add Label (KS Work Related)": {
"main": [
[]
]
}
}
}
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.
gmailOAuth2googlePalmApigroqApi
Pro
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About this workflow
Quickly organize your inbox with AI! This simple workflow automatically classifies incoming emails into different categories — like High Priority, Work Related, or Promotions — and applies Gmail labels accordingly. Setup takes less than 2 minutes, and it runs 24/7, helping you…
Source: https://n8n.io/workflows/3772/ — original creator credit. Request a take-down →
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