# Personal assistant for calendar & tasks with OpenAI: n8n workflow

> Started by an incoming Telegram message, and works across Google Calendar, Google Tasks and Telegram.

Source: https://millionrounds.com/workflow/personal-assistant-for-calendar-and-tasks-with-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)

# Personal assistant for calendar & tasks with OpenAI

Started by an incoming Telegram message, and works across Google Calendar, Google Tasks and Telegram. It puts OpenAI behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 22 steps: large, and worth reading before you trust it with anything live.

Large Calls a model: OpenAI Retrieval

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fpersonal-assistant-for-calendar-and-tasks-with-openai)

**22 steps** Large: read it before trusting it with anything live

**0** Branches: places the flow splits

**0** Loops or waits

**3** Services it connects to

## The flow

Starts it 3 Model 5 Service 14

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

- 1 **Create an Event in Google Calendar with 1 Attendee** Google Calendar Tool *Service*
- 2 **Create an Event in Google Calendar with 2 Attendees** Google Calendar Tool *Service*
- 3 **Delete an event Google Calendar** Google Calendar Tool *Service*
- 4 **Create a weekly recurrent event Event** Google Calendar Tool *Service*
- 5 **complete_task** Google Tasks Tool *Service*
- 6 **update tasks** Google Tasks Tool *Service*
- 7 **create_task** Google Tasks Tool *Service*
- 8 **get_tasks** Google Tasks Tool *Service*
- 9 **delete task** Google Tasks Tool *Service*
- 10 **move_task_position** Http Request Tool *Service*
- 11 **OpenAI Chat Model** Lm Chat Open Ai *Model*
- 12 **Telegram Trigger** Telegram trigger *Starts it*
- 13 **Google Tasks MCP** Mcp Client Tool *Model*
- 14 **Google Calender MCP** Mcp Client Tool *Model*
- 15 **Simple Memory** Memory Buffer Window *Model*
- 16 **Get_Events** Google Calendar Tool *Service*
- 17 **GetAll_Events** Google Calendar Tool *Service*
- 18 **MCP Server Trigger** Mcp trigger *Starts it*
- 19 **MCP Server Trigger1** Mcp trigger *Starts it*
- 20 **AI Agent** Agent *Model*
- 21 **Send Message** Telegram *Service*
- 22 **Send Error Message** Telegram *Service*

## How it's built

- **Starts on:** An incoming Telegram message
- **Steps:** 22
- **Size:** Large: read it before trusting it with anything live
- **Connects to:** Google Calendar, Google Tasks, Telegram
- **Model:** 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, Google Tasks and Telegram accounts, and a key for 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 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?

Take your time. At 22 steps it is large: read it before trusting it with anything live.

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 22 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%2Fpersonal-assistant-for-calendar-and-tasks-with-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)[Google Tasks](https://millionrounds.com/workflows?service=Google+Tasks#library)[Telegram](https://millionrounds.com/workflows?service=Telegram#library)

## Workflows like it

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

- [**Organise an Event with Slack and Google Calendar** 22 steps · calls a model · Google Calendar, Slack](https://millionrounds.com/workflow/organise-an-event-with-slack-and-google-calendar)
- [**Schedule motivational YouTube Shorts with Google Drive** 22 steps · calls a model · Airtable, Google Cloud Storage](https://millionrounds.com/workflow/schedule-motivational-youtube-shorts-with-google-drive)
- [**Smart email classifier & auto-responder with Azure OpenAI** 22 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/smart-email-classifier-and-auto-responder-with-azure-openai)
- [**Telegram AI Personal Assistant with Gemini and Tools** 22 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/telegram-ai-personal-assistant-with-gemini-and-tools)
- [**Sync Clockify to Google Calendar** 22 steps · Google Calendar](https://millionrounds.com/workflow/sync-clockify-to-google-calendar)
- [**AI Virtual Assisstant Version 1 with Gemini and Gmail** 21 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/ai-virtual-assisstant-version-1-with-gemini-and-gmail)