Manage Google Calendar Events with Openai Assistant (get, Create, Delete)

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": "41tGOnU3hN9zjJln",
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "name": "ca7ai Google_Cal_sub_agent",
  "tags": [],
  "nodes": [
    {
      "id": "16324d82-a9bc-4073-9b4c-fd77a090dca1",
      "name": "When Executed by Another Workflow",
      "type": "n8n-nodes-base.executeWorkflowTrigger",
      "position": [
        -96,
        0
      ],
      "parameters": {
        "workflowInputs": {
          "values": [
            {
              "name": "text"
            },
            {
              "name": "sessionid"
            }
          ]
        }
      },
      "typeVersion": 1.1
    },
    {
      "id": "874f3806-88e5-4402-a4fd-e4a3898c82b5",
      "name": "AI Agent",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
        112,
        0
      ],
      "parameters": {
        "text": "={{ $json.text }}",
        "options": {
          "systemMessage": "=You are a calendar assistant who can easily manage events in a google calendar. \nYou must provide the start and end date.\n\nIf you need to create events in the calendar use the \"Get\" tool. To delete events in the calendar use \"Delete\", and to create events use the \"Create\" tool.\n\nthe current date and time is {{ $now}}\nAdditionally, you must provide the summary and other details for the calendar which your tool might need. "
        },
        "promptType": "define"
      },
      "typeVersion": 2.2
    },
    {
      "id": "415dd782-7737-4167-b22d-b8f45adc0d2b",
      "name": "OpenAI Chat Model",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
        -32,
        208
      ],
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-4.1-mini"
        },
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "cf9318a7-a3df-448e-8bed-4d2eb79da709",
      "name": "Simple Memory",
      "type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
      "position": [
        128,
        208
      ],
      "parameters": {
        "sessionKey": "={{ $json.sessionid }}",
        "sessionIdType": "customKey"
      },
      "typeVersion": 1.3
    },
    {
      "id": "c64f7db8-55e6-42da-afe9-9a4033620283",
      "name": "Create",
      "type": "n8n-nodes-base.googleCalendarTool",
      "position": [
        416,
        160
      ],
      "parameters": {
        "end": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('End', ``, 'string') }}",
        "start": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Start', ``, 'string') }}",
        "calendar": {
          "__rl": true,
          "mode": "list",
          "value": "test@gmail.com",
          "cachedResultName": "test@gmail.com"
        },
        "additionalFields": {
          "summary": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Summary', ``, 'string') }}"
        },
        "useDefaultReminders": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Use_Default_Reminders', ``, 'boolean') }}"
      },
      "credentials": {
        "googleCalendarOAuth2Api": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1.3
    },
    {
      "id": "df7a77d7-ed5e-4b22-ac32-06a634b5be04",
      "name": "Get",
      "type": "n8n-nodes-base.googleCalendarTool",
      "position": [
        272,
        208
      ],
      "parameters": {
        "options": {},
        "timeMax": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Before', ``, 'string') }}",
        "timeMin": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('After', ``, 'string') }}",
        "calendar": {
          "__rl": true,
          "mode": "list",
          "value": "test@gmail.com",
          "cachedResultName": "test@gmail.com"
        },
        "operation": "getAll",
        "returnAll": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Return_All', ``, 'boolean') }}"
      },
      "credentials": {
        "googleCalendarOAuth2Api": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1.3
    },
    {
      "id": "8c875363-d79a-47be-89c5-1ff43222c0ff",
      "name": "Delete",
      "type": "n8n-nodes-base.googleCalendarTool",
      "position": [
        368,
        304
      ],
      "parameters": {
        "eventId": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Event_ID', ``, 'string') }}",
        "options": {},
        "calendar": {
          "__rl": true,
          "mode": "list",
          "value": "test@gmail.com",
          "cachedResultName": "test@gmail.com"
        },
        "operation": "delete"
      },
      "credentials": {
        "googleCalendarOAuth2Api": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1.3
    },
    {
      "id": "1ac31106-5ff0-422f-a921-7a7c653c61a6",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -592,
        -16
      ],
      "parameters": {
        "color": 4,
        "width": 304,
        "height": 144,
        "content": "**CHILD \u2014 CALENDAR TOOLS**\n\n**Get**: list events by date range\n**Create**: start + end + summary (required)\n**Delete**: requires eventId\nMemory keyed by `sessionid`"
      },
      "typeVersion": 1
    },
    {
      "id": "91cd60cf-8893-4b1b-935d-accaca98d43a",
      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -592,
        144
      ],
      "parameters": {
        "width": 304,
        "content": "**SUB-AGENT LOGIC**\n\n**Inputs**: text, sessionid\nAgent chooses the right tool\nReturn concise confirmation back to Parent"
      },
      "typeVersion": 1
    }
  ],
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "8dbfb5d7-a1e1-4f2e-b50d-b9a2b2739f17",
  "connections": {
    "Get": {
      "ai_tool": [
        [
          {
            "node": "AI Agent",
            "type": "ai_tool",
            "index": 0
          }
        ]
      ]
    },
    "Create": {
      "ai_tool": [
        [
          {
            "node": "AI Agent",
            "type": "ai_tool",
            "index": 0
          }
        ]
      ]
    },
    "Delete": {
      "ai_tool": [
        [
          {
            "node": "AI Agent",
            "type": "ai_tool",
            "index": 0
          }
        ]
      ]
    },
    "Simple Memory": {
      "ai_memory": [
        [
          {
            "node": "AI Agent",
            "type": "ai_memory",
            "index": 0
          }
        ]
      ]
    },
    "OpenAI Chat Model": {
      "ai_languageModel": [
        [
          {
            "node": "AI Agent",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "When Executed by Another Workflow": {
      "main": [
        [
          {
            "node": "AI Agent",
            "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.

• googleCalendarOAuth2Api
• openAiApi

About this workflow

What this workflow does

Source: https://n8n.io/workflows/7787/ — original creator credit. Request a take-down →

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