This workflow follows the Agent → Chat Trigger 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 →
{
"createdAt": "2025-03-04T05:07:49.591Z",
"updatedAt": "2025-03-04T21:05:21.736Z",
"id": "QT1e1h07xv5LJCnr",
"name": "Agent: Local AI RAG: Ollama & Qdrant",
"active": false,
"nodes": [
{
"parameters": {},
"id": "3ad576f8-2d4f-46a0-9518-360289cb8bfa",
"name": "Postgres Chat Memory",
"type": "@n8n/n8n-nodes-langchain.memoryPostgresChat",
"typeVersion": 1.1,
"position": [
480,
340
],
"credentials": {
"postgres": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"model": "llama3.1:latest",
"options": {}
},
"id": "b8af4d59-3c4e-48fe-baa5-29b270cf2fbc",
"name": "Ollama Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatOllama",
"typeVersion": 1,
"position": [
360,
340
],
"credentials": {
"ollamaApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"model": "qwen2.5:7b-instruct-q4_K_M",
"options": {}
},
"id": "d7267e4e-2230-4b1c-b6ee-2e62f1980042",
"name": "Ollama Model",
"type": "@n8n/n8n-nodes-langchain.lmOllama",
"typeVersion": 1,
"position": [
1400,
280
],
"credentials": {
"ollamaApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"name": "documents",
"topK": 3
},
"id": "082fea2d-2c19-43d7-a717-d8080e09721a",
"name": "Vector Store Tool",
"type": "@n8n/n8n-nodes-langchain.toolVectorStore",
"typeVersion": 1,
"position": [
1180,
120
]
},
{
"parameters": {
"model": "nomic-embed-text:latest"
},
"id": "87a7128f-5579-4f16-9ee5-e62d222e81e8",
"name": "Embeddings Ollama",
"type": "@n8n/n8n-nodes-langchain.embeddingsOllama",
"typeVersion": 1,
"position": [
1280,
380
],
"credentials": {
"ollamaApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"pollTimes": {
"item": [
{
"mode": "everyMinute"
}
]
},
"triggerOn": "specificFolder",
"folderToWatch": {
"__rl": true,
"value": "1914m3M7kRzkd5RJqAfzRY9EBcJrKemZC",
"mode": "list",
"cachedResultName": "Meeting Notes",
"cachedResultUrl": "https://drive.google.com/drive/folders/1914m3M7kRzkd5RJqAfzRY9EBcJrKemZC"
},
"event": "fileCreated",
"options": {}
},
"id": "8d18b9bf-8213-4968-b5f4-317051d00a0d",
"name": "File Created",
"type": "n8n-nodes-base.googleDriveTrigger",
"typeVersion": 1,
"position": [
40,
660
]
},
{
"parameters": {
"pollTimes": {
"item": [
{
"mode": "everyMinute"
}
]
},
"triggerOn": "specificFolder",
"folderToWatch": {
"__rl": true,
"value": "1914m3M7kRzkd5RJqAfzRY9EBcJrKemZC",
"mode": "list",
"cachedResultName": "Meeting Notes",
"cachedResultUrl": "https://drive.google.com/drive/folders/1914m3M7kRzkd5RJqAfzRY9EBcJrKemZC"
},
"event": "fileUpdated",
"options": {}
},
"id": "e7c3186d-98d9-4305-acc9-58e27ac26a64",
"name": "File Updated",
"type": "n8n-nodes-base.googleDriveTrigger",
"typeVersion": 1,
"position": [
40,
880
]
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "10646eae-ae46-4327-a4dc-9987c2d76173",
"name": "file_id",
"value": "={{ $json.id }}",
"type": "string"
},
{
"id": "dd0aa081-79e7-4714-8a67-1e898285554c",
"name": "folder_id",
"value": "={{ $json.parents[0] }}",
"type": "string"
}
]
},
"options": {}
},
"id": "ee8bec25-c1d1-4695-8bf4-1da6730d7cc2",
"name": "Set File ID",
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
300,
660
]
},
{
"parameters": {
"operation": "download",
"fileId": {
"__rl": true,
"value": "={{ $('Set File ID').item.json.file_id }}",
"mode": "id"
},
"options": {
"googleFileConversion": {
"conversion": {
"docsToFormat": "text/plain"
}
}
}
},
"id": "b8b509b3-b0a1-4628-af13-f889d73f2c43",
"name": "Download File",
"type": "n8n-nodes-base.googleDrive",
"typeVersion": 3,
"position": [
740,
660
],
"executeOnce": true
},
{
"parameters": {
"operation": "text",
"options": {}
},
"id": "7fb345f8-5042-4bdf-9b2d-d58996985f35",
"name": "Extract Document Text",
"type": "n8n-nodes-base.extractFromFile",
"typeVersion": 1,
"position": [
980,
660
],
"alwaysOutputData": true
},
{
"parameters": {
"options": {
"metadata": {
"metadataValues": [
{
"name": "file_id",
"value": "={{ $('Set File ID').item.json.file_id }}"
},
{
"name": "folder_id",
"value": "={{ $('Set File ID').item.json.folder_id }}"
}
]
}
}
},
"id": "cbf0f019-0005-4b2e-abb3-74e67b900c15",
"name": "Default Data Loader",
"type": "@n8n/n8n-nodes-langchain.documentDefaultDataLoader",
"typeVersion": 1,
"position": [
1300,
880
]
},
{
"parameters": {
"chunkSize": 100,
"options": {}
},
"id": "dd7c1311-047a-488b-a4cc-5d4b43f81440",
"name": "Recursive Character Text Splitter",
"type": "@n8n/n8n-nodes-langchain.textSplitterRecursiveCharacterTextSplitter",
"typeVersion": 1,
"position": [
1300,
1100
]
},
{
"parameters": {
"model": "nomic-embed-text:latest"
},
"id": "42eab7e9-c35a-4a40-88c4-69a443d68c9f",
"name": "Embeddings Ollama1",
"type": "@n8n/n8n-nodes-langchain.embeddingsOllama",
"typeVersion": 1,
"position": [
1140,
880
],
"credentials": {
"ollamaApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"content": "## Local RAG AI Agent with Chat Interface",
"height": 527.3027193303974,
"width": 969.0343804425795
},
"id": "074cff29-750b-48cc-aeea-6d34268cf5d0",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
0,
0
]
},
{
"parameters": {
"content": "## Agent Tools for Local RAG",
"height": 528.85546469693,
"width": 583.4552380860637,
"color": 4
},
"id": "854a309e-6537-440d-8c32-4149ae4fb4ec",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
980,
0
]
},
{
"parameters": {
"content": "## Workflow to Create Local Knowledgebase from Google Drive Folder",
"height": 705.2695614889159,
"width": 1568.9362829025763,
"color": 5
},
"id": "9825c7f8-6e15-4cbf-b4f5-27320e22eaf5",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
0,
540
]
},
{
"parameters": {
"options": {}
},
"id": "d4a9f93b-d3e8-4217-9916-6b141601fdbb",
"name": "When chat message received",
"type": "@n8n/n8n-nodes-langchain.chatTrigger",
"typeVersion": 1.1,
"position": [
60,
120
]
},
{
"parameters": {
"qdrantCollection": {
"__rl": true,
"value": "documents",
"mode": "list",
"cachedResultName": "documents"
},
"options": {}
},
"id": "8043c6fa-da65-44f5-9c0e-22a4907eccbc",
"name": "Qdrant Vector Store",
"type": "@n8n/n8n-nodes-langchain.vectorStoreQdrant",
"typeVersion": 1,
"position": [
1000,
260
],
"credentials": {
"qdrantApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"code": {
"execute": {
"code": "const { QdrantVectorStore } = require(\"@langchain/qdrant\");\nconst { OllamaEmbeddings } = require(\"@langchain/community/embeddings/ollama\");\n\nconst embeddings = new OllamaEmbeddings({\n model: \"nomic-embed-text\",\n baseUrl: \"http://ollama:11434\"\n});\n\nconst vectorStore = await QdrantVectorStore.fromExistingCollection(\n embeddings,\n {\n url: \"http://qdrant:6333\",\n collectionName: \"documents\",\n }\n);\n\nconst fileIdToDelete = this.getInputData()[0].json.file_id;\n\nconst filter = {\n must: [\n {\n key: \"metadata.file_id\",\n match: {\n value: fileIdToDelete,\n },\n },\n ],\n }\n\n// const results = await vectorStore.similaritySearch(\"this\", 10, filter);\n// const idsToDelete = results.map((doc) => doc.id);\n\n// NOT IMPLEMENTED!\n// await vectorStore.delete({ ids: idsToDelete });\n\nvectorStore.client.delete(\"documents\", {\n filter\n});\n\nreturn [ {json: { file_id: fileIdToDelete } } ];\n"
}
},
"inputs": {
"input": [
{
"type": "main",
"required": true
}
]
},
"outputs": {
"output": [
{
"type": "main"
}
]
}
},
"id": "31ed73f9-33dd-4fb9-b254-17f30adfcee9",
"name": "Clear Old Vectors",
"type": "@n8n/n8n-nodes-langchain.code",
"typeVersion": 1,
"position": [
520,
660
],
"alwaysOutputData": false
},
{
"parameters": {
"mode": "insert",
"qdrantCollection": {
"__rl": true,
"value": "documents",
"mode": "list",
"cachedResultName": "documents"
},
"options": {}
},
"id": "434cbd6c-bc7d-471b-b673-eedd7c237126",
"name": "Qdrant Vector Store Insert",
"type": "@n8n/n8n-nodes-langchain.vectorStoreQdrant",
"typeVersion": 1,
"position": [
1200,
660
],
"credentials": {
"qdrantApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"options": {}
},
"id": "9ecc0b2c-ee69-4c04-a8cf-e447b2aba39a",
"name": "Respond to Webhook",
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1.1,
"position": [
780,
120
]
},
{
"parameters": {
"httpMethod": "POST",
"path": "invoke_n8n_agent",
"responseMode": "responseNode",
"options": {}
},
"id": "f9163031-8c7b-4bde-b62b-2161dda6ace6",
"name": "Webhook",
"type": "n8n-nodes-base.webhook",
"typeVersion": 2,
"position": [
60,
300
]
},
{
"parameters": {
"options": {}
},
"id": "3b91c0ef-b600-4c70-b53f-869ca5a4bb01",
"name": "AI Agent",
"type": "@n8n/n8n-nodes-langchain.agent",
"typeVersion": 1.6,
"position": [
440,
120
]
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "75ebfdef-c8e2-4c3e-b716-1479d0cc2a73",
"name": "chatInput",
"value": "={{ $json?.chatInput || $json.body.chatInput }}",
"type": "string"
},
{
"id": "59b7a20f-0626-4861-93e2-015d430c266e",
"name": "sessionId",
"value": "={{ $json?.sessionId || $json.body.sessionId}}",
"type": "string"
}
]
},
"options": {}
},
"id": "75a827ea-7a8d-4302-8e92-976df231d027",
"name": "Edit Fields",
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
260,
120
]
}
],
"connections": {
"Postgres Chat Memory": {
"ai_memory": [
[
{
"node": "AI Agent",
"type": "ai_memory",
"index": 0
}
]
]
},
"Ollama Chat Model": {
"ai_languageModel": [
[
{
"node": "AI Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Ollama Model": {
"ai_languageModel": [
[
{
"node": "Vector Store Tool",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Embeddings Ollama": {
"ai_embedding": [
[
{
"node": "Qdrant Vector Store",
"type": "ai_embedding",
"index": 0
}
]
]
},
"File Created": {
"main": [
[
{
"node": "Set File ID",
"type": "main",
"index": 0
}
]
]
},
"File Updated": {
"main": [
[
{
"node": "Set File ID",
"type": "main",
"index": 0
}
]
]
},
"Set File ID": {
"main": [
[
{
"node": "Clear Old Vectors",
"type": "main",
"index": 0
}
]
]
},
"Download File": {
"main": [
[
{
"node": "Extract Document Text",
"type": "main",
"index": 0
}
]
]
},
"Extract Document Text": {
"main": [
[
{
"node": "Qdrant Vector Store Insert",
"type": "main",
"index": 0
}
]
]
},
"Default Data Loader": {
"ai_document": [
[
{
"node": "Qdrant Vector Store Insert",
"type": "ai_document",
"index": 0
}
]
]
},
"Recursive Character Text Splitter": {
"ai_textSplitter": [
[
{
"node": "Default Data Loader",
"type": "ai_textSplitter",
"index": 0
}
]
]
},
"Embeddings Ollama1": {
"ai_embedding": [
[
{
"node": "Qdrant Vector Store Insert",
"type": "ai_embedding",
"index": 0
}
]
]
},
"When chat message received": {
"main": [
[
{
"node": "Edit Fields",
"type": "main",
"index": 0
}
]
]
},
"Qdrant Vector Store": {
"ai_vectorStore": [
[
{
"node": "Vector Store Tool",
"type": "ai_vectorStore",
"index": 0
}
]
]
},
"Clear Old Vectors": {
"main": [
[
{
"node": "Download File",
"type": "main",
"index": 0
}
]
]
},
"Webhook": {
"main": [
[
{
"node": "Edit Fields",
"type": "main",
"index": 0
}
]
]
},
"AI Agent": {
"main": [
[
{
"node": "Respond to Webhook",
"type": "main",
"index": 0
}
]
]
},
"Edit Fields": {
"main": [
[
{
"node": "AI Agent",
"type": "main",
"index": 0
}
]
]
},
"Vector Store Tool": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
}
},
"settings": {
"executionOrder": "v1"
},
"staticData": null,
"versionId": "4a82a05b-6d70-42d6-85c2-248f1593662d",
"triggerCount": 0,
"tags": [
{
"createdAt": "2025-03-04T21:04:04.627Z",
"updatedAt": "2025-03-04T21:04:04.627Z",
"id": "DLlZ8ewOauMHjTtK",
"name": "agent"
}
]
}
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.
ollamaApipostgresqdrantApi
Pro
For the full experience including quality scoring and batch install features for each workflow upgrade to Pro
About this workflow
Agent: Local AI RAG: Ollama & Qdrant. Uses memoryPostgresChat, lmChatOllama, lmOllama, toolVectorStore. Event-driven trigger; 24 nodes.
Source: https://github.com/LLemonStack/llemonstack/blob/2f1cc4dcf8939a3fa79fccacf59addd5c0d563a3/examples/n8n/workflows/Agent_RAG-Qdrant_QT1e1h07xv5LJCnr.json — original creator credit. Request a take-down →
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