Describe the problem/error/question
My workflow was working fine till very recently. However, I have started to get timeout issue recently on the workflow. It works fine for the first time but the second request is failing with timeout error. Not sure what could be the issue,
What is the error message (if any)?
{
“errorMessage”: “Failed to execute operation: Failed to connect to MCP server: MCP error -32001: Request timed out”,
“errorDetails”: {},
“n8nDetails”: {
“time”: “6/23/2025, 11:47:22 AM”,
“n8nVersion”: “1.99.1 (Self Hosted)”,
“binaryDataMode”: “default”,
“cause”: {
“message”: “Failed to execute operation: Failed to connect to MCP server: MCP error -32001: Request timed out”,
“timestamp”: 1750693642515,
“name”: “NodeOperationError”,
“context”: {},
“cause”: {
“level”: “warning”,
“tags”: {}
}
}
}
}
Please share your workflow
(Select the nodes on your canvas and use the keyboard shortcuts CMD+C/CTRL+C and CMD+V/CTRL+V to copy and paste the workflow.)
{
“nodes”: [
{
“parameters”: {
“options”: {
“allowFileUploads”: false
}
},
“type”: “@n8n/n8n-nodes-langchain.chatTrigger”,
“typeVersion”: 1.1,
“position”: [
-500,
-740
],
“id”: “9a551466-9cf5-4a33-9719-ef089568218c”,
“name”: “When chat message received”,
“webhookId”: “f0ea42f2-b846-4a08-87e8-2b132be988c7”,
“notesInFlow”: false
},
{
“parameters”: {},
“type”: “@n8n/n8n-nodes-langchain.memoryBufferWindow”,
“typeVersion”: 1.3,
“position”: [
-160,
-520
],
“id”: “b86a6265-3ebd-4671-bde5-7331439a4dc7”,
“name”: “Simple Memory”,
“disabled”: true
},
{
“parameters”: {},
“type”: “n8n-nodes-mcp.mcpClientTool”,
“typeVersion”: 1,
“position”: [
-40,
-520
],
“id”: “3d999fb7-1dd9-4639-87bc-bd26dc482449”,
“name”: “JIRA Tools”,
“notesInFlow”: false,
“executeOnce”: true,
“credentials”: {
“mcpClientApi”: {
“id”: “Fckc9074HWIY5dqq”,
“name”: “MCP Client (STDIO) account”
}
}
},
{
“parameters”: {
“respondWith”: “json”,
“options”: {}
},
“type”: “n8n-nodes-base.respondToWebhook”,
“typeVersion”: 1.2,
“position”: [
280,
-740
],
“id”: “c83f2069-a5aa-41a2-bd25-4390069566c4”,
“name”: “Respond to Webhook”
},
{
“parameters”: {
“descriptionType”: “manual”,
“toolDescription”: “This tool allows you to execute tools from Jira. Use this tool only if you know the exact name and description.”,
“operation”: “executeTool”,
“toolName”: “={{ $fromAI("toolName") }}”,
“toolParameters”: “={{ /n8n-auto-generated-fromAI-override/ $fromAI(‘Tool_Parameters’, ``, ‘json’) }}”
},
“type”: “n8n-nodes-mcp.mcpClientTool”,
“typeVersion”: 1,
“position”: [
80,
-520
],
“id”: “51436268-5ac2-40bd-ac2b-459e3148b673”,
“name”: “Jira Execute Tool”,
“notesInFlow”: false,
“executeOnce”: true,
“credentials”: {
“mcpClientApi”: {
“id”: “Fckc9074HWIY5dqq”,
“name”: “MCP Client (STDIO) account”
}
}
},
{
“parameters”: {
“promptType”: “define”,
“text”: “=You are a helpful agent with tools that helps the user to achive his goals.\nWhen user prompts for some task, first plan for your work. You use the available tools to plan for your work. You typically perform two tasks:\n1. List available tools in Jira\n2. Execute the selected tool from the previous workflow node. Do not guess.\n\nNext execute the selected tool without user confirmation, while using memory to understand your progress.\n\nUser request:\n{{ $json.chatInput }}”,
“options”: {
“maxIterations”: 5
}
},
“type”: “@n8n/n8n-nodes-langchain.agent”,
“typeVersion”: 1.9,
“position”: [
-188,
-740
],
“id”: “fb5ac0b5-d058-4a75-9545-05bc0fb67452”,
“name”: “JIRA Agent”,
“executeOnce”: true
},
{
“parameters”: {
“model”: {
“__rl”: true,
“mode”: “list”,
“value”: “gpt-4o-mini”
},
“options”: {
“maxTokens”: -1,
“temperature”: 0.7,
“timeout”: 60000,
“maxRetries”: 2
}
},
“type”: “@n8n/n8n-nodes-langchain.lmChatOpenAi”,
“typeVersion”: 1.2,
“position”: [
-280,
-520
],
“id”: “3575be16-9848-4c28-afe9-6d0dd8e72f02”,
“name”: “OpenAI LLM”,
“credentials”: {
“openAiApi”: {
“id”: “se9toHM1CJZJ2AQt”,
“name”: “OpenAi account”
}
}
}
],
“connections”: {
“When chat message received”: {
“main”: [
[
{
“node”: “JIRA Agent”,
“type”: “main”,
“index”: 0
}
]
]
},
“Simple Memory”: {
“ai_memory”: [
[
{
“node”: “JIRA Agent”,
“type”: “ai_memory”,
“index”: 0
}
]
]
},
“JIRA Tools”: {
“ai_tool”: [
[
{
“node”: “JIRA Agent”,
“type”: “ai_tool”,
“index”: 0
}
]
]
},
“Jira Execute Tool”: {
“ai_tool”: [
[
{
“node”: “JIRA Agent”,
“type”: “ai_tool”,
“index”: 0
}
]
]
},
“JIRA Agent”: {
“main”: [
[
{
“node”: “Respond to Webhook”,
“type”: “main”,
“index”: 0
}
]
]
},
“OpenAI LLM”: {
“ai_languageModel”: [
[
{
“node”: “JIRA Agent”,
“type”: “ai_languageModel”,
“index”: 0
}
]
]
}
},
“pinData”: {
“Simple Memory”: [
{
“isArtificialRecoveredEventItem”: true
}
],
“OpenAI LLM”: [
{
“isArtificialRecoveredEventItem”: true
}
]
},
“meta”: {
“templateCredsSetupCompleted”: true,
“instanceId”: “9cc532cdccc1e0c1ad390d07f2c5b0399b28d4e035bff2e36acc57b0017209b8”
}
}
Share the output returned by the last node
Information on your n8n setup
- n8n version: 1.99.1
- Database (default: SQLite):
- n8n EXECUTIONS_PROCESS setting (default: own, main):
- Running n8n via (Docker, npm, n8n cloud, desktop app): Docker
- Operating system: - ubuntu 12.4 LTS
).