When testing the AI agent node I keep getting a general 403 error. Not sure what is erroring out or why I am getting a 403 just testing the node.
Problem running workflow, request failed with status code of 403
{
"nodes": [
{
"parameters": {
"httpMethod": "POST",
"path": "189c270c-cc80-478f-b359-572d08c00348",
"options": {}
},
"type": "n8n-nodes-base.webhook",
"typeVersion": 2,
"position": [
-180,
0
],
"id": "57614452-99b2-4dc3-b2a1-e985631681ba",
"name": "Webhook",
"webhookId": "189c270c-cc80-478f-b359-572d08c00348"
},
{
"parameters": {
"promptType": "define",
"text": "={{ $json.body.event.text }}",
"options": {
"systemMessage": "You are TimelyCare's helpful personal Information Technology assistant. Your goal will be to help users with their issues."
}
},
"type": "@n8n/n8n-nodes-langchain.agent",
"typeVersion": 1.8,
"position": [
40,
0
],
"id": "69b6a1ff-18b1-4752-911d-1591427cc4cc",
"name": "AI Agent"
},
{
"parameters": {
"modelName": "models/gemini-2.0-flash",
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini",
"typeVersion": 1,
"position": [
20,
220
],
"id": "e085ffba-6850-4c97-bb69-d7691882b258",
"name": "Google Gemini Chat Model",
"credentials": {
"googlePalmApi": {
"id": "uZAAgRRFQVtvfZST",
"name": "Google Gemini(PaLM) Api account"
}
}
},
{
"parameters": {
"sessionIdType": "customKey",
"sessionKey": "={{ $json.body.event.thread_ts }}"
},
"type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
"typeVersion": 1.3,
"position": [
220,
240
],
"id": "f3b73b98-c9fa-470d-a31c-92448de63ab2",
"name": "Simple Memory"
}
],
"connections": {
"Webhook": {
"main": [
[
{
"node": "AI Agent",
"type": "main",
"index": 0
}
]
]
},
"Google Gemini Chat Model": {
"ai_languageModel": [
[
{
"node": "AI Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Simple Memory": {
"ai_memory": [
[
{
"node": "AI Agent",
"type": "ai_memory",
"index": 0
}
]
]
}
},
"pinData": {},
"meta": {
"templateCredsSetupCompleted": true,
"instanceId": "8480d55f8af89498be533de09d63a71f23660e35a0c5d494018f3267a6f8947e"
}
}```
- **n8n version:** 1.85.4
- **Database (default: SQLite):** SQLite
- **n8n EXECUTIONS_PROCESS setting (default: own, main):**
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