# Manage Google Calendar with Telegram and OpenAI: n8n workflow

> Started by an incoming Telegram message, and works across Google Calendar and Telegram. It puts Gemini and OpenAI behind a retrieval step, so answers are...

Source: https://millionrounds.com/workflow/manage-google-calendar-with-telegram-and-openai (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Scheduling](https://millionrounds.com/workflows?category=Scheduling#library)

# Manage Google Calendar with Telegram and OpenAI

Started by an incoming Telegram message, and works across Google Calendar and Telegram. It puts Gemini and OpenAI behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 16 steps, 1 branch: a working afternoon to understand properly.

Medium Calls a model: Gemini, OpenAI Retrieval

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fmanage-google-calendar-with-telegram-and-openai)

**16 steps** Medium: a working afternoon

**1** Branch: places the flow splits

**0** Loops or waits

**2** Services it connects to

## The flow

Starts it 2 Model 4 Logic 2 Service 8

The steps in the order they run, from what starts it.

- 1 **Receive Bot Messages** Telegram trigger *Starts it*
- 2 **OpenAI Chat Model** Lm Chat Open Ai *Model*
- 3 **Simple Memory** Memory Buffer Window *Model*
- 4 **Create an event in Google Calendar** Google Calendar Tool *Service*
- 5 **Get many events in Google Calendar** Google Calendar Tool *Service*
- 6 **Delete an event in Google Calendar** Google Calendar Tool *Service*
- 7 **Update an event in Google Calendar** Google Calendar Tool *Service*
- 8 **Scheduled Everyday 8 AM** Schedule trigger *Starts it*
- 9 **Voice Note or Text?** Switch *Logic*
- 10 **AI Agent for Google Calendar** Agent *Model*
- 11 **Retrive all meeting/event that you have** Google Calendar *Service*
- 12 **Transform Audio to mp3 format** Telegram *Service*
- 13 **Send a summary action message** Telegram *Service*
- 14 **Daily Analytics Engine** Code *Logic*
- 15 **Transcribe a recording** Google Gemini *Model*
- 16 **Send Summary over Telegram** Telegram *Service*

## How it's built

- **Starts on:** An incoming Telegram message
- **Steps:** 16, with 1 branch
- **Size:** Medium: a working afternoon
- **Connects to:** Google Calendar, Telegram
- **Model:** Gemini, OpenAI
- **Retrieval:** Answers are drawn from documents you supply, not from the model alone

## Questions

What does it need to run?

An n8n account, plus your own Google Calendar and Telegram accounts, and a key for Gemini and OpenAI. You connect your own accounts after importing it; none are included.

What starts it?

It starts on an incoming Telegram message.

Does it use AI?

Yes. It calls Gemini and OpenAI. Its answers draw on documents you give it, not on the model alone. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 16 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 16 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fmanage-google-calendar-with-telegram-and-openai)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Google Calendar](https://millionrounds.com/workflows?service=Google+Calendar#library)[Telegram](https://millionrounds.com/workflows?service=Telegram#library)

## Workflows like it

Also scheduling, with the same services where possible, closest in size first.

- [**AI calendar assistant with Google Chat** 16 steps · calls a model · Google Calendar](https://millionrounds.com/workflow/ai-calendar-assistant-with-google-chat)
- [**AI-powered salon booking with OpenAI and Google Calendar** 16 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/ai-powered-salon-booking-with-openai-and-google-calendar)
- [**Analyze Google Calendar patterns with OpenAI** 16 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/analyze-google-calendar-patterns-with-openai)
- [**Automatic reminders for follow-ups with OpenAI and Gmail** 16 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/automatic-reminders-for-follow-ups-with-openai-and-gmail)
- [**Create smart Telegram reminders with OpenAI and Airtable** 16 steps · calls a model · Airtable, Telegram](https://millionrounds.com/workflow/create-smart-telegram-reminders-with-openai-and-airtable)
- [**Doctor appointment scheduler with Telegram and Gemini** 16 steps · calls a model · Google Sheets, Telegram](https://millionrounds.com/workflow/doctor-appointment-scheduler-with-telegram-and-gemini)