Angel Menendez This workflow corresponds to n8n.io template #5523 — 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": "OvYZQiWH2KlJsFbK",
"meta": {
"templateCredsSetupCompleted": true
},
"name": "Multi-Agent Evaluation (eval nodes)",
"tags": [
{
"id": "iNuMk76zLx33FnPf",
"name": "multi-agent",
"createdAt": "2025-06-18T23:08:04.545Z",
"updatedAt": "2025-06-18T23:08:04.545Z"
},
{
"id": "shqG88dQ5QVQIPJI",
"name": "evaluation",
"createdAt": "2025-06-16T20:21:56.654Z",
"updatedAt": "2025-06-16T20:21:56.654Z"
}
],
"nodes": [
{
"id": "8e4721bf-8c21-4de3-ae92-97c627919e1b",
"name": "Calculator",
"type": "@n8n/n8n-nodes-langchain.toolCalculator",
"position": [
-420,
160
],
"parameters": {},
"typeVersion": 1
},
{
"id": "4778f802-0d49-4e47-b153-6a721bec2214",
"name": "Check if tool called",
"type": "n8n-nodes-base.set",
"position": [
540,
-160
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "f31d1137-3262-4d46-979a-e9fc3c24f670",
"name": "tool_called",
"type": "boolean",
"value": "={{ \n $('When fetching a dataset row').item.json.tools_to_call\n .split(',').map(t => t.trim())\n .every(tool => $json.intermediateSteps.some(step => step.action.tool.toLowerCase() === tool)) \n}}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "fdc479f2-b056-464d-842e-da7cc432cbf7",
"name": "When chat message received",
"type": "@n8n/n8n-nodes-langchain.chatTrigger",
"position": [
-760,
40
],
"parameters": {
"options": {}
},
"typeVersion": 1.1
},
{
"id": "26ef423b-591f-4a0b-8abc-fdb308c75d3e",
"name": "Match chat format",
"type": "n8n-nodes-base.set",
"position": [
-760,
-160
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "3dec27ca-35df-47a7-9a53-d9b2d0b6c072",
"name": "chatInput",
"type": "string",
"value": "={{ $json.question }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "1d0fbac1-fb62-4b10-82c7-98d9b2a473c9",
"name": "Return chat response",
"type": "n8n-nodes-base.noOp",
"position": [
536,
40
],
"parameters": {},
"typeVersion": 1
},
{
"id": "758baf05-8830-4693-9f3a-a370d9fd4dc8",
"name": "When fetching a dataset row",
"type": "n8n-nodes-base.evaluationTrigger",
"position": [
-980,
-160
],
"parameters": {
"sheetName": {
"__rl": true,
"mode": "list",
"value": 969651976,
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/18F1WIEq1ykZKBO1bWYhC0YxRb2ngTurfsZ7jO6sGhLY/edit#gid=969651976",
"cachedResultName": "Tool calling"
},
"documentId": {
"__rl": true,
"mode": "list",
"value": "18F1WIEq1ykZKBO1bWYhC0YxRb2ngTurfsZ7jO6sGhLY",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/18F1WIEq1ykZKBO1bWYhC0YxRb2ngTurfsZ7jO6sGhLY/edit?usp=drivesdk",
"cachedResultName": "n8n dataset for evaluation"
}
},
"credentials": {
"googleSheetsOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 4.6
},
{
"id": "33900d54-32e0-4883-9ce8-6565db389473",
"name": "Evaluation",
"type": "n8n-nodes-base.evaluation",
"position": [
980,
-160
],
"parameters": {
"metrics": {
"assignments": [
{
"id": "5855df91-5a74-44f9-b25b-23a111dbd7a1",
"name": "tool_called",
"type": "number",
"value": "={{ $json.tool_called.toNumber() }}"
}
]
},
"operation": "setMetrics"
},
"typeVersion": 4.6
},
{
"id": "636b9b56-3ce3-4bc5-9dbd-42b77f2ce3a2",
"name": "Evaluating?",
"type": "n8n-nodes-base.evaluation",
"position": [
320,
-60
],
"parameters": {
"operation": "checkIfEvaluating"
},
"typeVersion": 4.6
},
{
"id": "174de2c6-787a-4d87-9d0f-a72bc7accc3a",
"name": "Set Outputs",
"type": "n8n-nodes-base.evaluation",
"position": [
760,
-160
],
"parameters": {
"outputs": {
"values": [
{
"outputName": "actual_tools_called",
"outputValue": "={{ $('Evaluating?').item.json.intermediateSteps.map(step => step.action.tool.toLowerCase()).join(', ') }}\n"
}
]
},
"sheetName": {
"__rl": true,
"mode": "list",
"value": 969651976,
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/18F1WIEq1ykZKBO1bWYhC0YxRb2ngTurfsZ7jO6sGhLY/edit#gid=969651976",
"cachedResultName": "Tool calling"
},
"documentId": {
"__rl": true,
"mode": "list",
"value": "18F1WIEq1ykZKBO1bWYhC0YxRb2ngTurfsZ7jO6sGhLY",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/18F1WIEq1ykZKBO1bWYhC0YxRb2ngTurfsZ7jO6sGhLY/edit?usp=drivesdk",
"cachedResultName": "n8n dataset for evaluation"
}
},
"credentials": {
"googleSheetsOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 4.6
},
{
"id": "38559de2-b143-4806-bd14-15015cf1e947",
"name": "Search Agent",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
-380,
-60
],
"parameters": {
"options": {
"systemMessage": "=You are a helpful assistant who will have access to a few tools to help with responding to user queries. I am providing some instructions below on how to use the tools. Please follow the instructions carefully.\n\nFirst, check the search_db tool to check whether the query exists. The tool expects a query string. If you use this tool and find relevant information, don't use the websearch tool.\n\nUse the web search tool to search the web for relevant information if you need to. You can ONLY call this tool once. \n\nUse the calculator for math operations or tasks. \n\nUse the summarizer tool to summarize the output. It's required to use this once you have gathered all the information you need.",
"returnIntermediateSteps": true
}
},
"typeVersion": 1.9
},
{
"id": "c2800f49-b091-4327-96c6-2c45782c670e",
"name": "Summarizer",
"type": "@n8n/n8n-nodes-langchain.toolWorkflow",
"position": [
-300,
160
],
"parameters": {
"workflowId": {
"__rl": true,
"mode": "list",
"value": "fehTbkLtPtlVwDYq",
"cachedResultName": "Summarizer Agent"
},
"description": "Call this tool to summarize the outputs. ",
"workflowInputs": {
"value": {
"query": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('query', ``, 'string') }}"
},
"schema": [
{
"id": "query",
"type": "string",
"display": true,
"required": false,
"displayName": "query",
"defaultMatch": false,
"canBeUsedToMatch": true
}
],
"mappingMode": "defineBelow",
"matchingColumns": [
"query"
],
"attemptToConvertTypes": false,
"convertFieldsToString": false
}
},
"typeVersion": 2.2
},
{
"id": "fb37524f-9c88-4684-9f46-f558025d5e80",
"name": "Web search",
"type": "n8n-nodes-base.httpRequestTool",
"position": [
-180,
160
],
"parameters": {
"url": "https://api.firecrawl.dev/v1/search",
"method": "POST",
"options": {},
"sendBody": true,
"sendHeaders": true,
"authentication": "genericCredentialType",
"bodyParameters": {
"parameters": [
{
"name": "query",
"value": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('parameters0_Value', ``, 'string') }}"
},
{
"name": "limit",
"value": "={{ \"3\".toNumber() }}"
}
]
},
"genericAuthType": "httpBearerAuth",
"headerParameters": {
"parameters": [
{
"name": "content-type",
"value": "application/json"
}
]
}
},
"credentials": {
"httpBearerAuth": {
"name": "<your credential>"
}
},
"typeVersion": 4.2
},
{
"id": "e15e9d58-dd8c-4288-b8fb-d8ef17df44a5",
"name": "OpenRouter Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenRouter",
"position": [
-540,
160
],
"parameters": {
"model": "openai/o3",
"options": {}
},
"credentials": {
"openRouterApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "68b1c2fa-49f9-41d2-8d57-dc89c972d43a",
"name": "Embeddings OpenAI",
"type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
"position": [
28,
360
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.2
},
{
"id": "090521fb-17f7-466f-8ae4-8f0d351f588a",
"name": "Search_db",
"type": "@n8n/n8n-nodes-langchain.vectorStoreQdrant",
"position": [
-60,
160
],
"parameters": {
"mode": "retrieve-as-tool",
"options": {},
"toolDescription": "Retrievel relevant results",
"qdrantCollection": {
"__rl": true,
"mode": "list",
"value": "search_queries",
"cachedResultName": "search_queries"
}
},
"credentials": {
"qdrantApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.3
}
],
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "4929985d-2b28-493e-901b-0a1c4a87fc12",
"connections": {
"Search_db": {
"ai_tool": [
[
{
"node": "Search Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"Calculator": {
"ai_tool": [
[
{
"node": "Search Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"Summarizer": {
"ai_tool": [
[
{
"node": "Search Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"Web search": {
"ai_tool": [
[
{
"node": "Search Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"Evaluating?": {
"main": [
[
{
"node": "Check if tool called",
"type": "main",
"index": 0
}
],
[
{
"node": "Return chat response",
"type": "main",
"index": 0
}
]
]
},
"Set Outputs": {
"main": [
[
{
"node": "Evaluation",
"type": "main",
"index": 0
}
]
]
},
"Search Agent": {
"main": [
[
{
"node": "Evaluating?",
"type": "main",
"index": 0
}
]
]
},
"Embeddings OpenAI": {
"ai_embedding": [
[
{
"node": "Search_db",
"type": "ai_embedding",
"index": 0
}
]
]
},
"Match chat format": {
"main": [
[
{
"node": "Search Agent",
"type": "main",
"index": 0
}
]
]
},
"Check if tool called": {
"main": [
[
{
"node": "Set Outputs",
"type": "main",
"index": 0
}
]
]
},
"OpenRouter Chat Model": {
"ai_languageModel": [
[
{
"node": "Search Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"When chat message received": {
"main": [
[
{
"node": "Search Agent",
"type": "main",
"index": 0
}
]
]
},
"When fetching a dataset row": {
"main": [
[
{
"node": "Match chat format",
"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.
googleSheetsOAuth2ApihttpBearerAuthopenAiApiopenRouterApiqdrantApi
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About this workflow
Who's it for
Source: https://n8n.io/workflows/5523/ — original creator credit. Request a take-down →
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