AdrianWang This workflow corresponds to n8n.io template #4808 — we link there as the canonical source.
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 →
{
"id": "DTa0EWl9cqgHmtr0",
"name": "Mineu MCP \u5bf9\u8bdd\u6d41\u7a0b\u5c55\u793a",
"tags": [],
"nodes": [
{
"id": "7c2da246-19a8-420f-8cd9-651e00937607",
"name": "If \u8fd8\u6ca1\u904d\u5386\u7ed3\u675f",
"type": "n8n-nodes-base.if",
"position": [
220,
580
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "or",
"conditions": [
{
"id": "4893fc89-9a8b-4f8d-8f11-3e937d6f8f3d",
"operator": {
"type": "number",
"operation": "lt"
},
"leftValue": "={{ $json.index }}",
"rightValue": "={{ $('When chat message received').item.binary.values().length}}"
}
]
}
},
"typeVersion": 2.2
},
{
"id": "dae9bcd0-2b1e-4091-bbd4-591af5e26a95",
"name": "\u521d\u59cb\u5316files",
"type": "n8n-nodes-base.set",
"position": [
0,
580
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "4ff468f4-ee0a-40c2-af55-43013882284c",
"name": "files",
"type": "array",
"value": "={{ [] }}"
},
{
"id": "7251c904-f32a-486f-9e41-77d76de784ae",
"name": "index",
"type": "number",
"value": 0
}
]
},
"includeOtherFields": true
},
"typeVersion": 3.4
},
{
"id": "28758f62-e99d-4025-a487-0150ca60e2c7",
"name": "MCP Client",
"type": "@n8n/n8n-nodes-langchain.mcpClientTool",
"position": [
600,
400
],
"parameters": {
"include": "selected",
"sseEndpoint": "http://127.0.0.1:8001/sse"
},
"typeVersion": 1
},
{
"id": "2e4a3ba3-a040-4a99-a71f-867c11255a58",
"name": "OpenAI Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
460,
400
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4o-mini",
"cachedResultName": "gpt-4o-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.2
},
{
"id": "d2942fd4-d799-47e9-ac24-0eff094c27c2",
"name": "AI Agent",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
440,
180
],
"parameters": {
"text": "=\n---\n\u4ee5\u4e0b\u4e3a\u7528\u6237\u7684\u5bf9\u8bdd\u4fe1\u606f\uff1a\n{{ $('When chat message received').item.json.chatInput }}\n\n",
"options": {
"systemMessage": "=\u4f60\u662f\u4e00\u4e2a\u5177\u5907\u6587\u4ef6\u9605\u8bfb\u80fd\u529b\u7684AI\uff0c\u7528\u6237\u5982\u679c\u8bf7\u6c42\u5bf9\u4e8e\u6587\u4ef6\u8fdb\u884c\u5904\u7406\uff0c\u5c31\u8bf7\u4f7f\u7528\u7cfb\u7edf\u4e2d\u5df2\u6709\u7684\u6587\u6863\u89e3\u6790\u5de5\u5177\u8fdb\u884c\u89e3\u6790\u540e\uff0c\u6309\u7167\u7528\u6237\u8981\u6c42\u8fdb\u884c\u5904\u7406\n---\n\u4e0b\u9762\u4e3a\u7528\u6237\u4e0a\u4f20\u7684\u6587\u4ef6\u5217\u8868\uff1a\n{{ $json.files }}"
},
"promptType": "define"
},
"typeVersion": 1.9
},
{
"id": "895ff140-8a3e-48af-b0bb-d23c8c8d119d",
"name": "When chat message received",
"type": "@n8n/n8n-nodes-langchain.chatTrigger",
"position": [
-280,
580
],
"parameters": {
"options": {
"allowFileUploads": true,
"allowedFilesMimeTypes": "*"
}
},
"typeVersion": 1.1
},
{
"id": "1e410edb-5434-40ab-8cdd-2a25574fcccc",
"name": "\u6dfb\u52a0\u6587\u4ef6\u8def\u5f84\u5230",
"type": "n8n-nodes-base.set",
"position": [
820,
660
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "232ad617-f398-434f-b138-a76b0adbf55b",
"name": "files",
"type": "array",
"value": "={{ $json.files.append($json.fileName) }}"
},
{
"id": "765fde8c-6212-4a70-9e67-eb1dbb3a152c",
"name": "index",
"type": "number",
"value": "={{ $json.index + 1 }}"
}
]
},
"includeOtherFields": true
},
"typeVersion": 3.4
},
{
"id": "ebdf5ef1-45f2-478e-abad-6235b260dee9",
"name": "\u6587\u4ef6\u4fdd\u5b58\u5230\u672c\u5730",
"type": "n8n-nodes-base.readWriteFile",
"position": [
520,
580
],
"parameters": {
"options": {},
"fileName": "=/Users/adrianwang/Documents/ailab/minerU-mcp/downloads/file_{{$now.toMillis()}}.{{ $('When chat message received').item.binary.values()[$json.index].fileName.split('.').pop()}}",
"operation": "write",
"dataPropertyName": "=data{{ $json.index }}"
},
"notesInFlow": false,
"typeVersion": 1,
"alwaysOutputData": true
}
],
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "88a5af39-f11f-4dd1-a374-623a1d4c8f8d",
"connections": {
"MCP Client": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"\u521d\u59cb\u5316files": {
"main": [
[
{
"node": "If \u8fd8\u6ca1\u904d\u5386\u7ed3\u675f",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "AI Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"If \u8fd8\u6ca1\u904d\u5386\u7ed3\u675f": {
"main": [
[
{
"node": "\u6587\u4ef6\u4fdd\u5b58\u5230\u672c\u5730",
"type": "main",
"index": 0
}
],
[
{
"node": "AI Agent",
"type": "main",
"index": 0
}
]
]
},
"\u6587\u4ef6\u4fdd\u5b58\u5230\u672c\u5730": {
"main": [
[
{
"node": "\u6dfb\u52a0\u6587\u4ef6\u8def\u5f84\u5230",
"type": "main",
"index": 0
}
]
]
},
"\u6dfb\u52a0\u6587\u4ef6\u8def\u5f84\u5230": {
"main": [
[
{
"node": "If \u8fd8\u6ca1\u904d\u5386\u7ed3\u675f",
"type": "main",
"index": 0
}
]
]
},
"When chat message received": {
"main": [
[
{
"node": "\u521d\u59cb\u5316files",
"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.
openAiApi
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About this workflow
This workflow automates the conversion of various document formats (such as PDF, Word, and PPT) into Markdown. It connects to the MinerU API service, which leverages OCR, formula, and table recognition to produce high-quality output. Users can initiate the process by simply…
Source: https://n8n.io/workflows/4808/ — original creator credit. Request a take-down →
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