James Francis This workflow corresponds to n8n.io template #5749 — we link there as the canonical source.
This workflow follows the Agent → HTTP Request 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": "7436eb20-9360-4219-8c2b-8b56eb3843ec",
"name": "OpenRouter Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenRouter",
"position": [
-80,
160
],
"parameters": {
"options": {}
},
"credentials": {
"openRouterApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "9601c9d7-41c0-44da-8a9c-97956711bd07",
"name": "AI Agent",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
-80,
-20
],
"parameters": {
"text": "={{ $json.text }}",
"options": {
"systemMessage": "You are a helpful, friendly, assistant. \n\nYou always respond only nicely formatted markdown where appropriate."
},
"promptType": "define"
},
"typeVersion": 2
},
{
"id": "23df5bee-5095-4c8d-9f78-c62119734332",
"name": "NoOp",
"type": "n8n-nodes-base.noOp",
"position": [
-60,
440
],
"parameters": {},
"typeVersion": 1
},
{
"id": "0442b3d9-2149-49b6-9cc8-af92d1ed036c",
"name": "On Message Received",
"type": "n8n-nodes-base.slackTrigger",
"position": [
-860,
80
],
"parameters": {
"options": {
"resolveIds": false
},
"trigger": [
"message"
],
"channelId": {
"__rl": true,
"mode": "id",
"value": "YOUR_APPS_CHANNEL_ID"
}
},
"credentials": {
"slackApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "d9efc43e-b1c1-48c0-8c68-42304c752645",
"name": "Check If User",
"type": "n8n-nodes-base.if",
"position": [
-480,
80
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "ab6c4d27-4daf-4c6f-9ad5-866f6cb62758",
"operator": {
"type": "string",
"operation": "notExists",
"singleValue": true
},
"leftValue": "={{ $json.bot_id }}",
"rightValue": ""
},
{
"id": "211e32ac-a544-46f4-8ce9-9a41674c4184",
"operator": {
"type": "string",
"operation": "exists",
"singleValue": true
},
"leftValue": "={{ $json.text }}",
"rightValue": ""
},
{
"id": "6160af99-6beb-4858-95e6-16e808c22581",
"operator": {
"name": "filter.operator.equals",
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.type }}",
"rightValue": "message"
}
]
}
},
"typeVersion": 2.2
},
{
"id": "99ccfdff-4fd1-4cff-99e0-7a2620735ff8",
"name": "Set Thinking Status",
"type": "n8n-nodes-base.httpRequest",
"position": [
0,
-400
],
"parameters": {
"url": "https://slack.com/api/assistant.threads.setStatus",
"method": "POST",
"options": {},
"sendBody": true,
"sendHeaders": true,
"authentication": "genericCredentialType",
"bodyParameters": {
"parameters": [
{
"name": "channel_id",
"value": "={{ $json.channel }}"
},
{
"name": "status",
"value": "is thinking..."
},
{
"name": "thread_ts",
"value": "={{ $json.thread_ts }}"
}
]
},
"genericAuthType": "httpBearerAuth",
"headerParameters": {
"parameters": [
{
"name": "Content-Type",
"value": "application/json"
}
]
}
},
"credentials": {
"httpBearerAuth": {
"name": "<your credential>"
}
},
"typeVersion": 4.2
},
{
"id": "f1bbe14d-9274-4e7a-804a-dd65b6efca24",
"name": "Send Reply",
"type": "n8n-nodes-base.slack",
"position": [
560,
60
],
"parameters": {
"text": "={{ $json.output }}",
"select": "channel",
"blocksUi": "={\n \"blocks\": [\n { \n \"type\": \"markdown\", \n \"text\": {{ JSON.stringify($json.output) }}\n }\n ]\n}\n\n",
"channelId": {
"__rl": true,
"mode": "id",
"value": "={{ $('On Message Received').item.json.channel }}"
},
"messageType": "block",
"otherOptions": {
"mrkdwn": true,
"thread_ts": {
"replyValues": {
"thread_ts": "={{ $('On Message Received').item.json.ts }}"
}
},
"includeLinkToWorkflow": false
}
},
"credentials": {
"slackApi": {
"name": "<your credential>"
}
},
"typeVersion": 2.3
},
{
"id": "484b674d-be92-49a9-9a0d-a4f9747dc5bb",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-940,
-40
],
"parameters": {
"color": 7,
"width": 300,
"height": 280,
"content": "## Listen for a DM\n\n**IMPORTANT**: Enter your Slack app's ID in the \"Channel to Watch\" field."
},
"typeVersion": 1
},
{
"id": "fdd9665d-b7c1-4a1d-b84d-6113ffb88a55",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-580,
-40
],
"parameters": {
"color": 7,
"width": 300,
"height": 280,
"content": "## Filter out noise\n\nWe only care about user messages."
},
"typeVersion": 1
},
{
"id": "c7cc385d-189f-4fb0-9901-8acbd4696e0c",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
-120,
-560
],
"parameters": {
"color": 7,
"width": 360,
"height": 360,
"content": "## Activate loading UI\n\nThis HTTP POST request will trigger the \"three dots\" thinking UI in the message thread. Slack automatically removes this UI when our app responds."
},
"typeVersion": 1
},
{
"id": "07c2ebc0-bc20-4584-bf87-31788aa1646d",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
-160,
-140
],
"parameters": {
"color": 7,
"width": 440,
"height": 460,
"content": "## Customize your agent here\n\nThe agent is the brains of your chatbot. Customize the prompts and tooling however you need."
},
"typeVersion": 1
},
{
"id": "242fa108-e421-4428-814d-b4ebf967f12d",
"name": "Postgres Chat Memory",
"type": "@n8n/n8n-nodes-langchain.memoryPostgresChat",
"position": [
60,
160
],
"parameters": {
"tableName": "chat_histories",
"sessionKey": "={{ $('On Message Received').item.json.thread_ts }}",
"sessionIdType": "customKey"
},
"credentials": {
"postgres": {
"name": "<your credential>"
}
},
"typeVersion": 1.3
}
],
"connections": {
"AI Agent": {
"main": [
[
{
"node": "Send Reply",
"type": "main",
"index": 0
}
]
]
},
"Check If User": {
"main": [
[
{
"node": "Set Thinking Status",
"type": "main",
"index": 0
},
{
"node": "AI Agent",
"type": "main",
"index": 0
}
],
[
{
"node": "NoOp",
"type": "main",
"index": 0
}
]
]
},
"On Message Received": {
"main": [
[
{
"node": "Check If User",
"type": "main",
"index": 0
}
]
]
},
"Postgres Chat Memory": {
"ai_memory": [
[
{
"node": "AI Agent",
"type": "ai_memory",
"index": 0
}
]
]
},
"OpenRouter Chat Model": {
"ai_languageModel": [
[
{
"node": "AI Agent",
"type": "ai_languageModel",
"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.
httpBearerAuthopenRouterApipostgresslackApi
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About this workflow
Slack quietly released an update to their API that allows developers to build "AI Apps & Agents", which is a special classification of apps that have access to several special capabilities including: Multiple simultaneous chat threads with one user Loading "three dots" UI while…
Source: https://n8n.io/workflows/5749/ — original creator credit. Request a take-down →
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