Oskar This workflow corresponds to n8n.io template #2197 — 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 →
{
"meta": {
"templateCredsSetupCompleted": true
},
"nodes": [
{
"id": "814e3849-1ae1-4124-bdfc-b72017e9d7c2",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
0,
0
],
"parameters": {
"color": 4,
"width": 420.4803040774015,
"height": 240.57943708322733,
"content": "## Add AI labels to Gmail messages\nWith this workflow you can automatically set labels for your Gmail message according to its content. \n\nIn this workflow available are 3 labels: \"Partnership\", \"Inquiry\" and \"Notification\". Feel free to adjust labels according to your needs. \n\n**Please remember to set label names both in your Gmail account and workflow.**"
},
"typeVersion": 1
},
{
"id": "e83fa311-b5ba-427e-a98e-573394b882dd",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
0,
260
],
"parameters": {
"width": 421.0932411886662,
"height": 257.42916378714597,
"content": "## \u26a0\ufe0f Note\n\n1. Complete video guide for this workflow is available [on my YouTube](https://youtu.be/a8Dhj3Zh9vQ). \n2. Remember to add your credentials and configure nodes (covered in the video guide).\n3. If you like this workflow, please subscribe to [my YouTube channel](https://www.youtube.com/@workfloows) and/or [my newsletter](https://workfloows.com/).\n\n**Thank you for your support!**"
},
"typeVersion": 1
},
{
"id": "4c20d029-750f-476b-9348-6e250ea64d52",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
440,
0
],
"parameters": {
"width": 238.4602598584674,
"height": 348.5873725349161,
"content": "### Gmail Trigger\nReceive data from Gmail about new incoming message. \n\n\u26a0\ufe0f Set polling interval according to your needs."
},
"typeVersion": 1
},
{
"id": "22923079-80ce-4495-b0f0-da7122195c56",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
1160,
380
],
"parameters": {
"width": 241.53974014153226,
"height": 319.3323098457962,
"content": "###\n\n\n\n\n\n\n\n\n\n\n### JSON schema\nEdit JSON schema and label names according to your needs.\n\n\u26a0\ufe0f **Label names in system prompt and JSON schema should be the same.**"
},
"typeVersion": 1
},
{
"id": "40735a58-daaa-43ac-9658-706c3cf0cbba",
"name": "Sticky Note5",
"type": "n8n-nodes-base.stickyNote",
"position": [
1900,
20
],
"parameters": {
"width": 226.14233872620645,
"height": 347.0476323933831,
"content": "### Merge labels\nCombine labels retrieved from Gmail account and assigned by AI together."
},
"typeVersion": 1
},
{
"id": "87e0f9e2-a2ff-46cf-896a-138b1bde2d0e",
"name": "Sticky Note6",
"type": "n8n-nodes-base.stickyNote",
"position": [
2160,
20
],
"parameters": {
"width": 452.48413953150185,
"height": 347.0476323933831,
"content": "### Aggregarte labels and add to message\nCreate array of label IDs and add to the desired email message in Gmail."
},
"typeVersion": 1
},
{
"id": "1d533664-e5e8-4dc8-afac-bfc5996e4bf9",
"name": "Sticky Note7",
"type": "n8n-nodes-base.stickyNote",
"position": [
700,
0
],
"parameters": {
"width": 238.4602598584674,
"height": 348.5873725349161,
"content": "### Get message content\nBased on Gmail message ID retrieve body content of the email and pass it to AI chain."
},
"typeVersion": 1
},
{
"id": "e613ca64-50ae-4d7c-b0fc-15812dadcd68",
"name": "Sticky Note8",
"type": "n8n-nodes-base.stickyNote",
"position": [
960,
0
],
"parameters": {
"width": 378.57661273793565,
"height": 348.5873725349161,
"content": "### Assign labels\nLet the AI decide which labels suit the best content of the message.\n\n\u26a0\ufe0f **Remember to edit system prompt** - modify label names and instructions according to your needs."
},
"typeVersion": 1
},
{
"id": "a2005e70-6774-45ce-b9c6-742786f49964",
"name": "Gmail trigger",
"type": "n8n-nodes-base.gmailTrigger",
"position": [
500,
180
],
"parameters": {
"simple": false,
"filters": {},
"options": {},
"pollTimes": {
"item": [
{
"mode": "everyMinute"
}
]
}
},
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
},
"typeVersion": 1.2
},
{
"id": "4b6f7d21-6155-42b7-93ff-2f530df3692f",
"name": "Get message content",
"type": "n8n-nodes-base.gmail",
"position": [
760,
180
],
"parameters": {
"messageId": "={{ $json.id }}",
"operation": "get"
},
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
},
"typeVersion": 2.1
},
{
"id": "ad577660-d9f4-4031-ad16-7021a02bb18e",
"name": "Assign labels for message",
"type": "@n8n/n8n-nodes-langchain.chainLlm",
"position": [
1020,
180
],
"parameters": {
"text": "={{ $('Gmail trigger').item.json.text }}",
"promptType": "define",
"hasOutputParser": true
},
"typeVersion": 1.5
},
{
"id": "1e11d30f-4c73-4fd0-a365-aeb43bee4252",
"name": "OpenAI Chat",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
1000,
400
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4o-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.2
},
{
"id": "4a504b64-fb28-44fb-a80a-6f5e5c5a1949",
"name": "JSON Parser",
"type": "@n8n/n8n-nodes-langchain.outputParserStructured",
"position": [
1240,
400
],
"parameters": {
"schemaType": "manual",
"inputSchema": "{\n \"type\": \"object\",\n \"properties\": {\n \"labels\": {\n \"type\": \"array\",\n \"items\": {\n \"type\": \"string\",\n \"enum\": [\"Inquiry\", \"Partnership\", \"Notification\"]\n }\n }\n },\n \"required\": [\"labels\"]\n}"
},
"typeVersion": 1.2
},
{
"id": "f5ac1b01-0980-4ee4-b4f5-5057258eab70",
"name": "Set label values",
"type": "n8n-nodes-base.set",
"position": [
1400,
180
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "72d11a72-6693-447c-b7ca-4ba1a3579075",
"name": "labels",
"type": "array",
"value": "={{ $json.output.labels }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "e368e343-728e-4e2f-a37f-5e203000d090",
"name": "Get all labels",
"type": "n8n-nodes-base.gmail",
"position": [
1680,
60
],
"parameters": {
"resource": "label",
"returnAll": true
},
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
},
"typeVersion": 2.1
},
{
"id": "48ce8351-5d04-4697-b68d-bb84286e0b2b",
"name": "Split out assigned labels",
"type": "n8n-nodes-base.splitOut",
"position": [
1680,
280
],
"parameters": {
"options": {},
"fieldToSplitOut": "labels"
},
"typeVersion": 1
},
{
"id": "cc1aa3ac-7427-4761-aacd-caf16c64d7fb",
"name": "Merge corresponding labels",
"type": "n8n-nodes-base.merge",
"position": [
1960,
180
],
"parameters": {
"mode": "combine",
"options": {},
"advanced": true,
"mergeByFields": {
"values": [
{
"field1": "name",
"field2": "labels"
}
]
}
},
"typeVersion": 3.1
},
{
"id": "97fefda6-5936-42a7-a30a-8de4149aa445",
"name": "Aggregate label IDs",
"type": "n8n-nodes-base.aggregate",
"position": [
2220,
180
],
"parameters": {
"options": {},
"fieldsToAggregate": {
"fieldToAggregate": [
{
"fieldToAggregate": "id"
}
]
}
},
"typeVersion": 1
},
{
"id": "7befd422-7243-43af-9b34-21c05a069013",
"name": "Add labels to message",
"type": "n8n-nodes-base.gmail",
"position": [
2440,
180
],
"parameters": {
"labelIds": "={{ $json.id }}",
"messageId": "={{ $('Gmail trigger').item.json[\"id\"] }}",
"operation": "addLabels"
},
"credentials": {
"gmailOAuth2": {
"name": "<your credential>"
}
},
"typeVersion": 2.1
}
],
"connections": {
"JSON Parser": {
"ai_outputParser": [
[
{
"node": "Assign labels for message",
"type": "ai_outputParser",
"index": 0
}
]
]
},
"OpenAI Chat": {
"ai_languageModel": [
[
{
"node": "Assign labels for message",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Gmail trigger": {
"main": [
[
{
"node": "Get message content",
"type": "main",
"index": 0
}
]
]
},
"Get all labels": {
"main": [
[
{
"node": "Merge corresponding labels",
"type": "main",
"index": 0
}
]
]
},
"Set label values": {
"main": [
[
{
"node": "Get all labels",
"type": "main",
"index": 0
},
{
"node": "Split out assigned labels",
"type": "main",
"index": 0
}
]
]
},
"Aggregate label IDs": {
"main": [
[
{
"node": "Add labels to message",
"type": "main",
"index": 0
}
]
]
},
"Get message content": {
"main": [
[
{
"node": "Assign labels for message",
"type": "main",
"index": 0
}
]
]
},
"Assign labels for message": {
"main": [
[
{
"node": "Set label values",
"type": "main",
"index": 0
}
]
]
},
"Split out assigned labels": {
"main": [
[
{
"node": "Merge corresponding labels",
"type": "main",
"index": 1
}
]
]
},
"Merge corresponding labels": {
"main": [
[
{
"node": "Aggregate label IDs",
"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.
gmailOAuth2openAiApi
Pro
For the full experience including quality scoring and batch install features for each workflow upgrade to Pro
About this workflow
This workflow uses AI to analyze the content of every new message in Gmail and then assigns specific labels, according to the context of the email.
Source: https://n8n.io/workflows/2197/ — original creator credit. Request a take-down →
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