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 →
{
"name": "V1 ocal RAG AI Agent",
"nodes": [
{
"parameters": {},
"id": "99b30fd7-b36c-44ba-9daa-408585aaaee9",
"name": "Postgres Chat Memory",
"type": "@n8n/n8n-nodes-langchain.memoryPostgresChat",
"typeVersion": 1.1,
"position": [
1040,
560
],
"credentials": {
"postgres": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"model": "llama3.1:latest",
"options": {}
},
"id": "c7632a7c-2661-492e-bd6f-aab994818998",
"name": "Ollama Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatOllama",
"typeVersion": 1,
"position": [
920,
560
],
"credentials": {
"ollamaApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"model": "llama3.1:latest",
"options": {}
},
"id": "73d773a4-5c72-4af3-a52d-144f0e417823",
"name": "Ollama Model",
"type": "@n8n/n8n-nodes-langchain.lmOllama",
"typeVersion": 1,
"position": [
1960,
500
],
"credentials": {
"ollamaApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"name": "documents",
"topK": 3
},
"id": "3f882fa7-c8ed-4531-b236-a34c16c55838",
"name": "Vector Store Tool",
"type": "@n8n/n8n-nodes-langchain.toolVectorStore",
"typeVersion": 1,
"position": [
1740,
340
]
},
{
"parameters": {
"model": "nomic-embed-text:latest"
},
"id": "3a8e3fa0-3997-4bce-985c-975fb5ad4013",
"name": "Embeddings Ollama",
"type": "@n8n/n8n-nodes-langchain.embeddingsOllama",
"typeVersion": 1,
"position": [
1840,
600
],
"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": "41fb71dd-236a-48bc-9761-5841d52ca1b3",
"name": "File Created",
"type": "n8n-nodes-base.googleDriveTrigger",
"typeVersion": 1,
"position": [
600,
880
],
"credentials": {
"googleDriveOAuth2Api": {
"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": "fileUpdated",
"options": {}
},
"id": "7b904686-89ae-4722-9ce5-a9da1b13b1a1",
"name": "File Updated",
"type": "n8n-nodes-base.googleDriveTrigger",
"typeVersion": 1,
"position": [
600,
1100
],
"credentials": {
"googleDriveOAuth2Api": {
"name": "<your credential>"
}
}
},
{
"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": "87f8bbb0-92c5-4b25-be63-7a9d91fc46f8",
"name": "Set File ID",
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
860,
880
]
},
{
"parameters": {
"operation": "download",
"fileId": {
"__rl": true,
"value": "={{ $('Set File ID').item.json.file_id }}",
"mode": "id"
},
"options": {
"googleFileConversion": {
"conversion": {
"docsToFormat": "text/plain"
}
}
}
},
"id": "9f1e08fb-4ef3-4c4d-9473-5a7a1608b8e3",
"name": "Download File",
"type": "n8n-nodes-base.googleDrive",
"typeVersion": 3,
"position": [
1300,
880
],
"executeOnce": true,
"credentials": {
"googleDriveOAuth2Api": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"operation": "text",
"options": {}
},
"id": "7efee822-68ad-4fe2-a616-ba19fd127684",
"name": "Extract Document Text",
"type": "n8n-nodes-base.extractFromFile",
"typeVersion": 1,
"position": [
1540,
880
],
"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": "da4c8b29-4944-43c4-9df3-e380366c594a",
"name": "Default Data Loader",
"type": "@n8n/n8n-nodes-langchain.documentDefaultDataLoader",
"typeVersion": 1,
"position": [
1860,
1100
]
},
{
"parameters": {
"chunkSize": 100,
"options": {}
},
"id": "d11c39b9-3fa7-4d5d-838f-da0d258c67c5",
"name": "Recursive Character Text Splitter",
"type": "@n8n/n8n-nodes-langchain.textSplitterRecursiveCharacterTextSplitter",
"typeVersion": 1,
"position": [
1860,
1320
]
},
{
"parameters": {
"model": "nomic-embed-text:latest"
},
"id": "8a04559c-dfe8-479f-8998-a2e9bc994a0a",
"name": "Embeddings Ollama1",
"type": "@n8n/n8n-nodes-langchain.embeddingsOllama",
"typeVersion": 1,
"position": [
1700,
1100
],
"credentials": {
"ollamaApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"content": "## Local RAG AI Agent with Chat Interface",
"height": 527.3027193303974,
"width": 969.0343804425795
},
"id": "a18773ae-1eb3-46b8-91cf-4184c66cf14f",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
560,
220
]
},
{
"parameters": {
"content": "## Agent Tools for Local RAG",
"height": 528.85546469693,
"width": 583.4552380860637,
"color": 4
},
"id": "fa010a11-3dda-4bd5-b261-463a3a6b88d9",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
1540,
220
]
},
{
"parameters": {
"content": "## Workflow to Create Local Knowledgebase from Google Drive Folder",
"height": 705.2695614889159,
"width": 1568.9362829025763,
"color": 5
},
"id": "f29e6cc7-015e-47cb-a4fd-fecd6ffb0d24",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
560,
760
]
},
{
"parameters": {
"options": {}
},
"id": "5da52326-dfbd-4350-919c-843461f58913",
"name": "When chat message received",
"type": "@n8n/n8n-nodes-langchain.chatTrigger",
"typeVersion": 1.1,
"position": [
620,
340
]
},
{
"parameters": {
"qdrantCollection": {
"__rl": true,
"value": "documents",
"mode": "list",
"cachedResultName": "documents"
},
"options": {}
},
"id": "355370e0-2174-4e5b-830b-dd0f123b2e40",
"name": "Qdrant Vector Store",
"type": "@n8n/n8n-nodes-langchain.vectorStoreQdrant",
"typeVersion": 1,
"position": [
1560,
480
],
"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": "b93bd001-0c4d-42fe-939a-eb441f354917",
"name": "Clear Old Vectors",
"type": "@n8n/n8n-nodes-langchain.code",
"typeVersion": 1,
"position": [
1080,
880
],
"alwaysOutputData": false
},
{
"parameters": {
"mode": "insert",
"qdrantCollection": {
"__rl": true,
"value": "documents",
"mode": "list",
"cachedResultName": "documents"
},
"options": {}
},
"id": "97ec4618-c0ea-445b-9406-5d41784d7836",
"name": "Qdrant Vector Store Insert",
"type": "@n8n/n8n-nodes-langchain.vectorStoreQdrant",
"typeVersion": 1,
"position": [
1760,
880
],
"credentials": {
"qdrantApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"options": {}
},
"id": "e537544a-37d5-4b00-b5ff-bc71f041f4bb",
"name": "Respond to Webhook",
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1.1,
"position": [
1340,
340
]
},
{
"parameters": {
"httpMethod": "POST",
"path": "invoke_n8n_agent",
"responseMode": "responseNode",
"options": {}
},
"id": "2b8cd01f-30a8-4aab-b0dd-56d2b658f059",
"name": "Webhook",
"type": "n8n-nodes-base.webhook",
"typeVersion": 2,
"position": [
620,
520
]
},
{
"parameters": {
"options": {}
},
"id": "c9dfe906-178b-4375-8bda-f9290f35f222",
"name": "AI Agent",
"type": "@n8n/n8n-nodes-langchain.agent",
"typeVersion": 1.6,
"position": [
1000,
340
]
},
{
"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": "8f974a15-aa2f-4525-8278-ad58ad296076",
"name": "Edit Fields",
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
820,
340
]
}
],
"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
}
]
]
}
},
"active": true,
"settings": {
"executionOrder": "v1"
},
"versionId": "19f9691c-4682-4704-81f2-33fdec9d0be2",
"meta": {
"templateCredsSetupCompleted": true
},
"id": "vTN9y2dLXqTiDfPT",
"tags": []
}
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.
googleDriveOAuth2ApiollamaApipostgresqdrantApi
Pro
For the full experience including quality scoring and batch install features for each workflow upgrade to Pro
About this workflow
V1 ocal RAG AI Agent. Uses memoryPostgresChat, lmChatOllama, lmOllama, toolVectorStore. Event-driven trigger; 24 nodes.
Source: https://github.com/161sam/Workspace-in-a-Box/blob/main/n8n/backup/workflows/V1_Local_RAG_AI_Agent.json — original creator credit. Request a take-down →
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