{
  "workflow": {
    "id": 3393,
    "name": "Google Calendar 📅 reminder system with GPT-4o and Telegram",
    "views": 28019,
    "recentViews": 3,
    "totalViews": 28019,
    "createdAt": "2025-04-01T07:27:50.382Z",
    "description": "How many times have you missed a meeting or forgotten an appointment because a calendar reminder got lost in the noise? Traditional notifications are often dry, easy to ignore, or scattered across different apps—leaving you scrambling at the last minute.\n\nThis smart **Google Calendar** workflow fixes that by sending you a clear, friendly reminder exactly **1 hour before your event starts**—delivered through **Telegram** as if a personal assistant were looking out for you. Powered by **AI**, it transforms cold calendar alerts into warm, conversational nudges you won't ignore.\n\n----\n#### Why This Works Better:  \n✅ **No More Overlooked Alerts** – Consolidates reminders into one clear, accessible place (Telegram), so you never miss them.  \n✅ **Friendly & Engaging** – AI transforms robotic calendar entries into natural, human-like reminders that are harder to ignore.  \n✅ **Works Everywhere** – Whether you're on your phone, laptop, or tablet, you’ll get the same clear notification, no matter the platform.  \n\n---\n#### **How It Works**\n1. **Scheduled Trigger**: The workflow starts with a Schedule Trigger node that runs every minute to check for upcoming events.\n2. **Google Calendar Check**: The \"Get upcoming event\" node queries Google Calendar for events starting within the next hour (between `timeMin` and `timeMax`).\n3. **Duplicate Prevention**: The \"Already sent?\" node ensures reminders are not sent multiple times for the same event by filtering out duplicates.\n4. **AI-Powered Reminder**: The \"Secretary Agent\" node, powered by **GPT-4**, crafts a friendly and professional reminder message. It includes event details like name, description, location, start/end time, and creator, formatted in a conversational tone.\n5. **Telegram Notification**: The final \"Send reminder\" node delivers the reminder via Telegram, ensuring the user receives it in a clear and accessible format.\n----\n#### **Set Up Steps**\n1. **Configure Schedule Trigger**: Set the interval (e.g., every minute) to check for events.\n2. **Connect Google Calendar**: Link your Google Calendar account and specify the calendar to monitor.\n3. **Set Up AI Agent**: Customize the \"Secretary Agent\" with the provided system message to ensure reminders are warm, professional, and detailed.\n4. **Link Telegram**: Add your Telegram credentials and specify the `CHAT_ID` where reminders will be sent.\n5. **Activate Workflow**: Ensure the workflow is active and set to the correct timezone (e.g., `Europe/Rome`).\n---\n#### **Why It’s Useful**\n- **Never Miss an Event**: Traditional calendar reminders can be easy to overlook, especially when scattered across platforms. This workflow consolidates reminders into a single, accessible channel (Telegram).\n- **Clear and Friendly**: The AI agent transforms generic calendar alerts into personalized, conversational reminders, making them harder to ignore.\n- **Cross-Platform Accessibility**: By delivering reminders via Telegram, users receive them in a consistent format, regardless of the device or platform they’re using. No more missed events due to unclear notifications!\n---\n\n### **Need help customizing?**  \n[Contact me](mailto:info@n3w.it) for consulting and support or add me on [Linkedin](https://www.linkedin.com/in/davideboizza/).",
    "workflow": {
      "id": "SvYHgLmzosuLAe4A",
      "meta": {
        "instanceId": "a4bfc93e975ca233ac45ed7c9227d84cf5a2329310525917adaf3312e10d5462",
        "templateCredsSetupCompleted": true
      },
      "name": "Google Calendar Event Reminder",
      "tags": [],
      "nodes": [
        {
          "id": "dff5d952-23cb-4822-9aec-0dcae3de568a",
          "name": "Schedule Trigger",
          "type": "n8n-nodes-base.scheduleTrigger",
          "disabled": true,
          "position": [
            -40,
            300
          ],
          "parameters": {
            "rule": {
              "interval": [
                {
                  "field": "minutes",
                  "minutesInterval": 1
                }
              ]
            }
          },
          "typeVersion": 1.2
        },
        {
          "id": "a6de9944-1dd7-430e-a1d9-100710ddfa9c",
          "name": "OpenAI Chat Model",
          "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
          "position": [
            700,
            500
          ],
          "parameters": {
            "model": {
              "__rl": true,
              "mode": "list",
              "value": "gpt-4o-mini"
            },
            "options": {}
          },
          "credentials": {
            "openAiApi": {
              "id": "credential-id",
              "name": "openAiApi Credential"
            }
          },
          "typeVersion": 1.2
        },
        {
          "id": "6d2208a6-6000-4b6b-a82c-e346b7885409",
          "name": "Get upcoming event",
          "type": "n8n-nodes-base.googleCalendar",
          "position": [
            240,
            300
          ],
          "parameters": {
            "limit": 5,
            "options": {},
            "timeMax": "={{ $now.plus({ hour: 1, minute:1 }) }}",
            "timeMin": "={{ $now.plus({ hour: 1 }) }}",
            "calendar": {
              "__rl": true,
              "mode": "list",
              "value": "user@example.com",
              "cachedResultName": "user@example.com"
            },
            "operation": "getAll"
          },
          "credentials": {
            "googleCalendarOAuth2Api": {
              "id": "credential-id",
              "name": "googleCalendarOAuth2Api Credential"
            }
          },
          "typeVersion": 1.3
        },
        {
          "id": "e6f6e744-60b0-4b22-93bc-f3ffcfac71f6",
          "name": "Already sent?",
          "type": "n8n-nodes-base.removeDuplicates",
          "position": [
            480,
            300
          ],
          "parameters": {
            "options": {},
            "operation": "removeItemsSeenInPreviousExecutions",
            "dedupeValue": "={{ $json.id }}"
          },
          "typeVersion": 2
        },
        {
          "id": "882d08f5-790a-40bb-bda5-60744d587633",
          "name": "Secretary Agent",
          "type": "@n8n/n8n-nodes-langchain.agent",
          "position": [
            720,
            300
          ],
          "parameters": {
            "text": "=These are the details of the event/appointment:\n\nEvent Name: {{ $('Get upcoming event').item.json.summary }}\nDescription: {{ $('Get upcoming event').item.json.description }}\nLocation: {{ $('Get upcoming event').item.json.location }}\nStart: {{ $('Get upcoming event').item.json.start.dateTime }}\nEnd: {{ $('Get upcoming event').item.json.end.dateTime }}\nCreated by: {{ $('Get upcoming event').item.json.creator.email }}",
            "options": {
              "systemMessage": "=## Core Identity\nYou are a professional and friendly virtual secretary, dedicated to reminder appointments with efficiency and a warm personal touch.\n\n## Communication Style\n- Communicate in a conversational, approachable manner\n- Maintain a balance between professional competence and friendly rapport\n- Use a tone that is informal yet precise\n- Inject occasional light humor and personality into interactions\n\n## Key Responsibilities\n1. Calendar Management\n   - Provide timely reminders and scheduling updates\n\n2. Communication Approach\n   - Respond promptly and clearly\n   - Maintain confidentiality and discretion\n\n## Interaction Guidelines\n- Use a friendly, conversational tone\n- Just describe the details of the event without asking questions\n\n## Tone and Language\n- Warm and approachable\n- Professional but not overly formal\n- Direct and clear in communication\n- Use simple, straightforward language\n- Show genuine care and attentiveness\n\nRemember: Your primary goal is to make the user's life easier, more organized, and less stressful through efficient and friendly administrative support."
            },
            "promptType": "define",
            "hasOutputParser": true
          },
          "typeVersion": 1.8
        },
        {
          "id": "82509a0f-9086-423e-8928-f882e59333b8",
          "name": "Send reminder",
          "type": "n8n-nodes-base.telegram",
          "position": [
            1100,
            300
          ],
          "webhookId": "dbb6a96e-db3b-4827-9455-a91007b89616",
          "parameters": {
            "text": "={{ $json.output }}",
            "chatId": "CHAT_ID",
            "additionalFields": {
              "appendAttribution": false
            }
          },
          "credentials": {
            "telegramApi": {
              "id": "credential-id",
              "name": "telegramApi Credential"
            }
          },
          "typeVersion": 1.2
        },
        {
          "id": "d08dd565-4718-4fbc-af7c-7a2e042c96f8",
          "name": "Sticky Note",
          "type": "n8n-nodes-base.stickyNote",
          "position": [
            -40,
            -140
          ],
          "parameters": {
            "color": 3,
            "width": 620,
            "content": "## Google Calendar Event Reminder\nThis smart **Google Calendar** workflow fixes that by sending you a clear, friendly reminder exactly **1 hour before your event starts**—delivered through **Telegram** as if a personal assistant were looking out for you. Powered by **AI**, it transforms cold calendar alerts into warm, conversational nudges you won't ignore."
          },
          "typeVersion": 1
        },
        {
          "id": "7a9379ca-f301-40b9-ae90-742663bbcdf2",
          "name": "Sticky Note1",
          "type": "n8n-nodes-base.stickyNote",
          "position": [
            -40,
            40
          ],
          "parameters": {
            "width": 620,
            "height": 140,
            "content": "## STEP 1\n- In the \"Get upcoming event\" node enter how much time before the event starts you want to be notified. It is currently set to 1 hour\n- In the Telegram node replace CHAT_ID with that of your personal Bot"
          },
          "typeVersion": 1
        },
        {
          "id": "d7852912-6501-4a1b-8928-6eb890e4aea8",
          "name": "Sticky Note2",
          "type": "n8n-nodes-base.stickyNote",
          "position": [
            420,
            240
          ],
          "parameters": {
            "width": 220,
            "height": 200,
            "content": "Prevent multiple reminders for the same event"
          },
          "typeVersion": 1
        }
      ],
      "active": false,
      "pinData": {},
      "settings": {
        "timezone": "Europe/Rome",
        "callerPolicy": "workflowsFromSameOwner",
        "executionOrder": "v1"
      },
      "versionId": "d0dd74db-e96c-4a09-a8d1-6fb193b6e015",
      "connections": {
        "Already sent?": {
          "main": [
            [
              {
                "node": "Secretary Agent",
                "type": "main",
                "index": 0
              }
            ]
          ]
        },
        "Secretary Agent": {
          "main": [
            [
              {
                "node": "Send reminder",
                "type": "main",
                "index": 0
              }
            ]
          ]
        },
        "Schedule Trigger": {
          "main": [
            [
              {
                "node": "Get upcoming event",
                "type": "main",
                "index": 0
              }
            ]
          ]
        },
        "OpenAI Chat Model": {
          "ai_languageModel": [
            [
              {
                "node": "Secretary Agent",
                "type": "ai_languageModel",
                "index": 0
              }
            ]
          ]
        },
        "Get upcoming event": {
          "main": [
            [
              {
                "node": "Already sent?",
                "type": "main",
                "index": 0
              }
            ]
          ]
        }
      }
    },
    "lastUpdatedBy": 29,
    "workflowInfo": {
      "nodeCount": 9,
      "nodeTypes": {
        "n8n-nodes-base.telegram": {
          "count": 1
        },
        "n8n-nodes-base.stickyNote": {
          "count": 3
        },
        "n8n-nodes-base.googleCalendar": {
          "count": 1
        },
        "@n8n/n8n-nodes-langchain.agent": {
          "count": 1
        },
        "n8n-nodes-base.scheduleTrigger": {
          "count": 1
        },
        "n8n-nodes-base.removeDuplicates": {
          "count": 1
        },
        "@n8n/n8n-nodes-langchain.lmChatOpenAi": {
          "count": 1
        }
      }
    },
    "status": "published",
    "user": {
      "name": "Davide",
      "username": "n3witalia",
      "bio": "Full-stack Web Developer based in Italy specialising in Marketing & AI-powered automations. For business enquiries, send me an email at info@n3w.it or add me on Linkedin.com/in/davideboizza",
      "verified": true,
      "links": [
        "https://n3w.it"
      ],
      "avatar": "https://gravatar.com/avatar/d41b8a0aa81139243509c58870f5b4be292824a507ab57d10ed066d8628ed8da?r=pg&d=retro&size=200"
    },
    "nodes": [
      {
        "id": 49,
        "icon": "file:telegram.svg",
        "name": "n8n-nodes-base.telegram",
        "codex": {
          "data": {
            "alias": [
              "human",
              "form",
              "wait",
              "hitl",
              "approval"
            ],
            "resources": {
              "generic": [
                {
                  "url": "https://n8n.io/blog/why-business-process-automation-with-n8n-can-change-your-daily-life/",
                  "icon": "🧬",
                  "label": "Why business process automation with n8n can change your daily life"
                },
                {
                  "url": "https://n8n.io/blog/create-a-toxic-language-detector-for-telegram/",
                  "icon": "🤬",
                  "label": "Create a toxic language detector for Telegram in 4 step"
                },
                {
                  "url": "https://n8n.io/blog/automatically-adding-expense-receipts-to-google-sheets-with-telegram-mindee-twilio-and-n8n/",
                  "icon": "🧾",
                  "label": "Automatically Adding Expense Receipts to Google Sheets with Telegram, Mindee, Twilio, and n8n"
                },
                {
                  "url": "https://n8n.io/blog/no-code-ecommerce-workflow-automations/",
                  "icon": "store",
                  "label": "6 e-commerce workflows to power up your Shopify s"
                },
                {
                  "url": "https://n8n.io/blog/world-poetry-day-workflow/",
                  "icon": "📜",
                  "label": "Celebrating World Poetry Day with a daily poem in Telegram"
                },
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                },
                {
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                {
                  "url": "https://n8n.io/blog/aws-workflow-automation/",
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              ],
              "primaryDocumentation": [
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                  "url": "https://docs.n8n.io/integrations/builtin/app-nodes/n8n-nodes-base.telegram/"
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              "credentialDocumentation": [
                {
                  "url": "https://docs.n8n.io/integrations/builtin/credentials/telegram/"
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            },
            "categories": [
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            "nodeVersion": "1.0",
            "codexVersion": "1.0",
            "subcategories": {
              "HITL": [
                "Human in the Loop"
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            }
          }
        },
        "group": "[\"output\"]",
        "defaults": {
          "name": "Telegram"
        },
        "iconData": {
          "type": "file",
          "fileBuffer": "data:image/svg+xml;base64,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"
        },
        "displayName": "Telegram",
        "typeVersion": 1,
        "nodeCategories": [
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            "id": 6,
            "name": "Communication"
          },
          {
            "id": 28,
            "name": "HITL"
          }
        ]
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      {
        "id": 317,
        "icon": "file:googleCalendar.svg",
        "name": "n8n-nodes-base.googleCalendar",
        "codex": {
          "data": {
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                  "url": "https://n8n.io/blog/how-to-host-virtual-coffee-breaks-with-n8n/",
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                  "label": "How to host virtual coffee breaks with n8n"
                },
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                },
                {
                  "url": "https://n8n.io/blog/automate-google-apps-for-productivity/",
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                  "label": "15 Google apps you can combine and automate to increase productivity"
                },
                {
                  "url": "https://n8n.io/blog/your-business-doesnt-need-you-to-operate/",
                  "icon": " 🖥️",
                  "label": "Hey founders! Your business doesn't need you to operate"
                },
                {
                  "url": "https://n8n.io/blog/5-workflow-automations-for-mattermost-that-we-love-at-n8n/",
                  "icon": "🤖",
                  "label": "5 workflow automation for Mattermost that we love at n8n"
                },
                {
                  "url": "https://n8n.io/blog/tracking-time-spent-in-meetings-with-google-calendar-twilio-and-n8n/",
                  "icon": "🗓",
                  "label": "Tracking Time Spent in Meetings With Google Calendar, Twilio, and n8n"
                }
              ],
              "primaryDocumentation": [
                {
                  "url": "https://docs.n8n.io/integrations/builtin/app-nodes/n8n-nodes-base.googlecalendar/"
                }
              ],
              "credentialDocumentation": [
                {
                  "url": "https://docs.n8n.io/integrations/builtin/credentials/google/oauth-single-service/"
                }
              ]
            },
            "categories": [
              "Productivity"
            ],
            "nodeVersion": "1.0",
            "codexVersion": "1.0"
          }
        },
        "group": "[\"input\"]",
        "defaults": {
          "name": "Google Calendar"
        },
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        "icon": "fa:sticky-note",
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              "Polling",
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              "Interval"
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            "resources": {
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            "codexVersion": "1.0"
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              "Langchain"
            ],
            "subcategories": {
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                "Root Nodes"
              ]
            }
          }
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          "color": "#404040"
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            "name": "AI"
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            "id": 26,
            "name": "Langchain"
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        "icon": "file:openAiLight.svg",
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                "Root Nodes"
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              "Language Models": [
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    "categories": [
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        "name": "Personal Productivity"
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        "name": "AI Chatbot"
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    "image": []
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