Manage Google Calendar via Telegram and get daily AI briefings (OpenAI + Gemini)

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1. Workflow Overview

Categories Productivity Automation AI Agents Scheduling Personal Operations Description Build a fully automated AI powered Calendar Assistant that manages your Google Calendar via Telegram and deli...

Best for

Personal Productivity automation workflows
AI Chatbot automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.telegramtrigger, @n8n/n8n-nodes-langchain.agent, @n8n/n8n-nodes-langchain.lmchatopenai, @n8n/n8n-nodes-langchain.memorybufferwindow, n8n-nodes-base.googlecalendartool, n8n-nodes-base.telegram, n8n-nodes-base.switch, @n8n/n8n-nodes-langchain.googlegemini

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Ahmed Salama.

Original n8n.io source

1.1 Workflow description

Title: Manage Google Calendar via Telegram and get daily AI briefings (OpenAI + Gemini)
Workflow name: Manage Google Calendar via Telegram and get daily AI briefings (OpenAI + Gemini)

Description

Build a fully automated AI-powered Calendar Assistant that manages your Google Calendar via Telegram and delivers a daily executive productivity briefing.

This workflow combines conversational AI scheduling with automated daily analytics to transform your calendar from a passive storage tool into an active decision system.

The assistant handles event creation, updates, deletions, conflict detection, and rescheduling through natural language messages or voice notes. It uses AI to interpret requests, validate availability, and maintain a clean scheduling structure.

In addition, a daily automated summary analyzes your calendar and sends a productivity briefing directly to Telegram. It calculates total meeting hours, identifies deep work windows, and flags overload risks to help you protect strategic time.

The result is a smart, low-friction scheduling system that reduces decision fatigue and improves time allocation without manual calendar reviews.

Benefits

Natural Language Scheduling

Create and manage events directly from Telegram using text or voice.

Conflict Prevention

Automatically checks availability before creating meetings.

Daily Executive Briefing

Receive a structured summary of your day every morning.

Deep Work Visibility

Identifies uninterrupted focus windows automatically.

Overload Detection

Flags days with excessive meetings.

Time Zone Safe

Designed to operate reliably in Asia/Dubai timezone.

How It Works

AI Scheduling Layer

Telegram Trigger receives messages
Voice notes are transcribed automatically
AI agent extracts intent and event details
Google Calendar tools execute actions safely

Daily Analytics Engine

Scheduled trigger runs every morning
Pulls today's events from Google Calendar

Calculates:

Meeting count
Total meeting hours
Free focus blocks
Overload status
Sends formatted summary to Telegram

Required Setup

Google Calendar OAuth
Telegram Bot Token
OpenAI API Key
Google Gemini API (for voice transcription)
n8n Cloud or Self-Hosted

Business Use Cases

Founders
Executives
Consultants
Remote Teams
High-Performance Professionals

Difficulty Level

Intermediate

Estimated Build Time

45–75 minutes

Monthly Operating Cost

OpenAI: Usage-based
Google Gemini: Usage-based
n8n: Cloud or self-hosted

Typical range: $10–40/month depending on usage.

Why This Workflow Works

Scheduling friction is reduced to conversation
Daily analytics creates behavioral awareness
Automation removes repetitive calendar checking
AI interpretation minimizes manual input errors
Time allocation becomes measurable and optimizable

Possible Extensions

Revenue vs internal meeting classification
Auto-block deep work if none exists
CRM pipeline integration
Weekly time allocation report
Meeting quality scoring
Automatic follow-up reminders

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Receive Bot Messages

Type / Role: n8n-nodes-base.telegramTrigger - telegramTrigger
Config choices: Version 1.2

Block 2 - AI Agent for Google Calendar

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 3

Block 3 - OpenAI Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1.3

Block 4 - Simple Memory

Type / Role: @n8n/n8n-nodes-langchain.memoryBufferWindow - memoryBufferWindow
Config choices: Version 1.3

Block 5 - Create an event in Google Calendar

Type / Role: n8n-nodes-base.googleCalendarTool - googleCalendarTool
Config choices: Version 1.3

Block 6 - Get many events in Google Calendar

Type / Role: n8n-nodes-base.googleCalendarTool - googleCalendarTool
Config choices: Version 1.3

Block 7 - Delete an event in Google Calendar

Type / Role: n8n-nodes-base.googleCalendarTool - googleCalendarTool
Config choices: Version 1.3

Block 8 - Update an event in Google Calendar

Type / Role: n8n-nodes-base.googleCalendarTool - googleCalendarTool
Config choices: Version 1.3

Block 9 - Send a summary action message

Type / Role: n8n-nodes-base.telegram - telegram
Config choices: Version 1.2

Block 10 - Voice Note or Text?

Type / Role: n8n-nodes-base.switch - switch
Config choices: Version 3.4

Block 11 - Transcribe a recording

Type / Role: @n8n/n8n-nodes-langchain.googleGemini - googleGemini
Config choices: Version 1

Block 12 - Scheduled Everyday 8 AM

Type / Role: n8n-nodes-base.scheduleTrigger - scheduleTrigger
Config choices: Version 1.3

Block 13 - Retrive all meeting/event that you have

Type / Role: n8n-nodes-base.googleCalendar - googleCalendar
Config choices: Version 1.3

Block 14 - Daily Analytics Engine

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 15 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 16 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 17 - Sticky Note2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 18 - Sticky Note3

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 19 - Sticky Note4

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 20 - Send Summary over Telegram

Type / Role: n8n-nodes-base.telegram - telegram
Config choices: Version 1.2

Block 21 - Transform Audio to mp3 format

Type / Role: n8n-nodes-base.telegram - telegram
Config choices: Version 1.2

3. Summary Table

Workflow	Manage Google Calendar via Telegram and get daily AI briefings (OpenAI + Gemini)
Complexity	advanced
Nodes	21
Categories	Personal Productivity, AI Chatbot
Author	Ahmed Salama
Published	11 Feb 2026

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/13309/13309.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Personal Productivity workflows AI Chatbot workflows

Frequently asked questions

What does Manage Google Calendar via Telegram and get daily AI briefings (OpenAI + Gemini) do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Personal Productivity, AI Chatbot use case.

Ahmed Salama

7 workflows

Nodes

n8n-nodes-base.telegramtrigger @n8n/n8n-nodes-langchain.agent @n8n/n8n-nodes-langchain.lmchatopenai @n8n/n8n-nodes-langchain.memorybufferwindow n8n-nodes-base.googlecalendartool n8n-nodes-base.telegram n8n-nodes-base.switch @n8n/n8n-nodes-langchain.googlegemini

Complexity

advanced

Published 11 Feb 2026

Likes 0

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Install path: /data/workflows/13309/13309.json

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Manage Google Calendar via Telegram and get daily AI briefings (OpenAI + Gemini)

Workflow preview

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Categories

Description

Benefits

Natural Language Scheduling

Conflict Prevention

Daily Executive Briefing

Deep Work Visibility

Overload Detection

Time Zone Safe

How It Works

AI Scheduling Layer

Daily Analytics Engine

Calculates:

Required Setup

Business Use Cases

Difficulty Level

Estimated Build Time

Monthly Operating Cost

Why This Workflow Works

Possible Extensions

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Receive Bot Messages

Block 2 - AI Agent for Google Calendar

Block 3 - OpenAI Chat Model

Block 4 - Simple Memory

Block 5 - Create an event in Google Calendar

Block 6 - Get many events in Google Calendar

Block 7 - Delete an event in Google Calendar

Block 8 - Update an event in Google Calendar

Block 9 - Send a summary action message

Block 10 - Voice Note or Text?

Block 11 - Transcribe a recording

Block 12 - Scheduled Everyday 8 AM

Block 13 - Retrive all meeting/event that you have

Block 14 - Daily Analytics Engine

Block 15 - Sticky Note

Block 16 - Sticky Note1

Block 17 - Sticky Note2

Block 18 - Sticky Note3

Block 19 - Sticky Note4

Block 20 - Send Summary over Telegram

Block 21 - Transform Audio to mp3 format

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions