AI Chatbot with Google Gemini

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": "basic-llm",
  "nodes": [
    {
      "parameters": {
        "path": "7880f808-f9cb-4f66-8598-bd610b91f55a",
        "responseMode": "lastNode",
        "options": {
          "rawBody": true
        }
      },
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 2,
      "position": [
        -280,
        -100
      ],
      "id": "47ca52ba-46b0-47d9-8c95-47db3ce1a39b",
      "name": "Webhook"
    },
    {
      "parameters": {
        "promptType": "define",
        "text": "={{ $json.body.keys()[0].parseJson()['prompt'] }}"
      },
      "type": "@n8n/n8n-nodes-langchain.chainLlm",
      "typeVersion": 1.6,
      "position": [
        -60,
        -100
      ],
      "id": "6e9c6635-d5c6-4abb-a552-900801648491",
      "name": "Basic LLM Chain"
    },
    {
      "parameters": {
        "modelName": "models/gemini-2.0-flash",
        "options": {}
      },
      "type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini",
      "typeVersion": 1,
      "position": [
        -160,
        120
      ],
      "id": "5d5a7061-4cdc-4889-afdd-9958c8f707dd",
      "name": "Google Gemini Chat Model",
      "credentials": {
        "googlePalmApi": {
          "name": "<your credential>"
        }
      }
    }
  ],
  "connections": {
    "Webhook": {
      "main": [
        [
          {
            "node": "Basic LLM Chain",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Google Gemini Chat Model": {
      "ai_languageModel": [
        [
          {
            "node": "Basic LLM Chain",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Basic LLM Chain": {
      "main": [
        []
      ]
    }
  },
  "active": true,
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "e1fd3090-0d66-432a-8f9b-cc8bad33c7dd",
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "id": "htvcp1manbMEIxEr",
  "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.

• googlePalmApi

About this workflow

basic-llm. Uses chainLlm, lmChatGoogleGemini. Webhook trigger; 3 nodes.

Source: https://github.com/anoochit/ai_agent/blob/0abd5f6c447cefc5d9bb9b62732656cd54ab217f/n8n/workflow/basic_llm.json — original creator credit. Request a take-down →

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