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": "MCP Client",
"nodes": [
{
"parameters": {
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.chatTrigger",
"typeVersion": 1.1,
"position": [
0,
0
],
"id": "07b4488b-c683-45bd-af6c-cadc96a1282c",
"name": "When chat message received"
},
{
"parameters": {
"options": {
"systemMessage": "=You are a helpful assistant\n\nToday's date is: {{ $now }}"
}
},
"type": "@n8n/n8n-nodes-langchain.agent",
"typeVersion": 1.8,
"position": [
220,
0
],
"id": "5b129199-e9d3-43ba-9dcf-afc6a6a60d68",
"name": "AI Agent"
},
{
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4o-mini"
},
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"typeVersion": 1.2,
"position": [
40,
220
],
"id": "e0ab40c3-92ec-46db-b7fd-19f038221cb9",
"name": "OpenAI Chat Model",
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"sseEndpoint": "https://jonocatliff.app.n8n.cloud/mcp/mcp/sse"
},
"type": "@n8n/n8n-nodes-langchain.mcpClientTool",
"typeVersion": 1,
"position": [
200,
220
],
"id": "865bfd14-7ebb-47e8-87bb-6361dbecbfc3",
"name": "MCP Client"
}
],
"connections": {
"When chat message received": {
"main": [
[
{
"node": "AI Agent",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "AI Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"MCP Client": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
}
},
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "7de32429-006f-40f2-be19-b59a49c3ffd8",
"meta": {
"templateCredsSetupCompleted": true
},
"id": "eVFR42crtNUMjTY0",
"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.
openAiApi
About this workflow
MCP Client. Uses chatTrigger, agent, lmChatOpenAi, mcpClientTool. Chat trigger; 4 nodes.
Source: https://github.com/Zie619/n8n-workflows — original creator credit. Request a take-down →