Manage email, calendar, tasks and expenses from Telegram with GPT-4o and Google

Jarvis is a powerful multi-agent productivity assistant built in n8n. It works directly from Telegram and can understand both text messages and voice notes.

The workflow uses a main Jarvis Manager Agent to understand the user's request and route it to the correct specialist agent, such as Gmail, Calendar, Google Tasks, Finance, or Contacts. It can send and reply to emails, manage calendar events, create and complete tasks, track expenses in Google Sheets, search contacts, and respond back to the user in Telegram.

This template is useful for anyone who wants a personal AI assistant that can manage daily productivity tasks from one simple chat interface.

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What This Workflow Does

• Accepts Telegram text messages and voice notes
• Converts voice messages into text using OpenAI transcription
• Uses a main AI manager agent to understand the request
• Routes the request to the correct specialist agent
• Supports Gmail, Google Calendar, Google Tasks, Google Sheets, and Google Contacts
• Tracks expenses in a Google Sheet
• Sends the final response back to Telegram
• Replies with text if the user sends text
• Replies with audio if the user sends a voice message

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Node-by-Node Explanation

1. Telegram Trigger

What this node does

This node starts the workflow whenever the Telegram bot receives a new message.

How it works

It listens for incoming Telegram updates. When a user sends a message to the bot, this node captures message details such as chat ID, message text, voice file ID, and sender information.

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2. Switch

What this node does

This node checks whether the incoming Telegram message is text or audio.

How it works

It checks if message.text exists. If text exists, the workflow continues through the text path. If text does not exist, it treats the message as an audio or voice message.

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3. Get a file

What this node does

This node downloads the voice message file from Telegram.

How it works

When a user sends a voice note, Telegram provides a file_id. This node uses that file ID to fetch the actual audio file so it can be processed further.

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4. Transcribe a recording

What this node does

This node converts the Telegram voice message into text.

How it works

It sends the downloaded audio file to OpenAI's audio transcription service. The output becomes normal text, which can then be understood by the AI agent.

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5. Jarvis Manager Agent

What this node does

This is the main brain of the workflow.

How it works

The Manager Agent receives either direct Telegram text or transcribed voice text. It understands the user's intent and decides which specialist agent should handle the request.

Specialist agents available

• Gmail Agent
• Calendar Agent
• Task Agent
• Finance Agent
• Contacts Agent

Why it is important

Instead of one AI agent doing everything, this node acts like a smart router. It sends each request to the correct expert agent, making the workflow more organized and scalable.

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6. OpenAI Chat Model

What this node does

This node provides the language model for the Jarvis Manager Agent.

How it works

The Jarvis Manager Agent uses this OpenAI chat model to understand the user's message, decide the correct tool or agent, and generate a short final response.

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7. Simple Memory

What this node does

This node gives Jarvis short-term memory.

How it works

It stores conversation context using the Telegram chat ID as the session key. This helps Jarvis remember recent conversation history for the same user.

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8. Think

What this node does

This node allows the main agent to reason before choosing an action.

How it works

The Manager Agent can use this tool to internally think through the user's request and decide which specialist agent should be called.

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Gmail Section

9. Gmail Agent

What this node does

This is the specialist agent for Gmail-related tasks.

How it works

The Manager Agent sends Gmail tasks to this agent, such as searching emails, sending emails, drafting emails, replying to emails, and managing labels. The Gmail Agent then chooses the correct Gmail tool.

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10. OpenAI Chat Model1

What this node does

This node powers the Gmail Agent.

How it works

It helps the Gmail Agent understand Gmail-related instructions and decide which Gmail action should be performed.

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11. Send Email

What this node does

This node sends a new email through Gmail.

How it works

The Gmail Agent provides the recipient email, subject, and message body. This node then sends the email from the connected Gmail account.

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12. Reply to an Email

What this node does

This node replies to an existing Gmail message.

How it works

The Gmail Agent provides the message ID and reply content. This node sends the reply inside the correct email thread.

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13. Add Label to Email

What this node does

This node adds one or more Gmail labels to an email.

How it works

The Gmail Agent provides the message ID and label name or label ID. This node applies the selected label to organize the email.

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14. Get Labels

What this node does

This node retrieves Gmail labels.

How it works

It fetches the available Gmail labels so the Gmail Agent can use them for organizing or filtering emails.

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15. Draft Email

What this node does

This node creates a new email draft.

How it works

Instead of sending the email immediately, the Gmail Agent provides the recipient, subject, and message body, and this node saves it as a Gmail draft.

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16. Draft Email Reply

What this node does

This node creates a draft reply inside an existing Gmail thread.

How it works

The Gmail Agent provides the thread ID, subject, and reply message. This node saves the response as a draft reply.

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17. Get Emails

What this node does

This node searches and retrieves Gmail messages.

How it works

The Gmail Agent can pass filters such as search query, sender, received after date, or received before date. This node returns matching emails.

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Calendar Section

18. Calendar Agent

What this node does

This is the specialist agent for Google Calendar tasks.

How it works

The Manager Agent sends calendar-related requests to this agent. The Calendar Agent can check availability, get events, create events, reschedule events, and delete events.

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19. OpenAI Chat Model2

What this node does

This node powers the Calendar Agent.

How it works

It helps the Calendar Agent understand scheduling requests and choose the correct Google Calendar tool.

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20. Check Availability

What this node does

This node checks whether a time slot is available on Google Calendar.

How it works

The Calendar Agent provides a start time and end time. This node checks the connected calendar for conflicts.

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21. Get all Events

What this node does

This node retrieves upcoming Google Calendar events.

How it works

The Calendar Agent provides a date range, and this node returns matching calendar events ordered by start time.

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22. Delete Calendar Event

What this node does

This node deletes a Google Calendar event.

How it works

The Calendar Agent provides the event ID. This node removes the selected event from Google Calendar.

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23. Reschedule Event

What this node does

This node updates or reschedules an existing calendar event.

How it works

The Calendar Agent provides the event ID, new start time, new end time, and optional attendee details. This node updates the event in Google Calendar.

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24. Get Event

What this node does

This node retrieves one specific calendar event.

How it works

The Calendar Agent provides the event ID, and this node fetches the full event details from Google Calendar.

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25. Create an event

What this node does

This node creates a new Google Calendar event.

How it works

The Calendar Agent provides the event title, start time, end time, description, and reminder settings. This node creates the event in the connected calendar.

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Task Section

26. Task Agent

What this node does

This is the specialist agent for Google Tasks.

How it works

The Manager Agent sends task-related requests to this agent, such as creating a task, reading tasks, completing a task, or deleting a task.

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27. OpenAI Chat Model3

What this node does

This node powers the Task Agent.

How it works

It helps the Task Agent understand task-related instructions and select the correct Google Tasks tool.

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28. Create a Task

What this node does

This node creates a new Google Task.

How it works

The Task Agent provides the task title, due date, and optional notes. This node adds the task to Google Tasks.

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29. Get a Task

What this node does

This node retrieves one specific Google Task.

How it works

The Task Agent provides the task ID, and this node fetches the matching task details.

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30. Get many Tasks

What this node does

This node retrieves multiple Google Tasks.

How it works

The Task Agent can ask for all tasks or filter based on completed and incomplete tasks. This node returns the matching task list.

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31. Complete a Task

What this node does

This node marks a Google Task as completed.

How it works

The Task Agent provides the task ID and completion date. This node updates the task status to completed.

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32. Delete a Task

What this node does

This node deletes a Google Task.

How it works

The Task Agent provides the task ID. This node removes the selected task from Google Tasks.

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Finance Section

33. Finance Agent

What this node does

This is the specialist agent for expense tracking.

How it works

The Manager Agent sends finance-related requests to this agent, such as logging an expense, reading expense data, summarizing spending, or deleting expense rows.

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34. OpenAI Chat Model4

What this node does

This node powers the Finance Agent.

How it works

It helps the Finance Agent understand expense-related instructions and decide whether to read, create, summarize, or delete expense records.

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35. Get all Expenses

What this node does

This node reads expense data from Google Sheets.

How it works

It connects to the expense tracker spreadsheet and retrieves the existing expense records for analysis or summarization.

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36. Create Expense

What this node does

This node adds a new expense record to Google Sheets.

How it works

The Finance Agent provides values such as date, description, category, and amount. This node appends the expense as a new row in the spreadsheet.

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37. Delete Expense

What this node does

This node deletes or clears expense rows from Google Sheets.

How it works

The Finance Agent provides the row number and number of rows to delete. This node clears the selected expense entry from the sheet.

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Contacts Section

38. Contacts Agent

What this node does

This is the specialist agent for Google Contacts lookup.

How it works

The Manager Agent sends contact search requests to this agent. It can search for contact names, email addresses, and contact details.

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39. OpenAI Chat Model5

What this node does

This node powers the Contacts Agent.

How it works

It helps the Contacts Agent understand contact lookup requests and prepare the right search query.

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40. Get Contacts

What this node does

This node searches Google Contacts.

How it works

The Contacts Agent provides a name, email, or query. This node searches the connected Google Contacts account and returns matching names and email addresses.

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Response Section

41. Set Reply Message

What this node does

This node prepares the final response message.

How it works

It takes the output from the Jarvis Manager Agent and stores it in a clean field called message, so the Telegram reply nodes can use it easily.

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42. Check Text or Audio

What this node does

This node decides whether Jarvis should reply with text or audio.

How it works

It checks the original Telegram input. If the user sent a text message, Jarvis sends a text reply. If the user sent a voice message, Jarvis generates and sends an audio reply.

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43. Send a text message

What this node does

This node sends Jarvis's final reply as a Telegram text message.

How it works

It sends the prepared response back to the same Telegram chat ID. It also escapes Markdown characters so the message displays correctly in Telegram.

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44. Generate audio

What this node does

This node converts Jarvis's final text reply into audio.

How it works

If the user originally sent a voice message, this node uses OpenAI audio generation to create an audio version of the response.

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45. Send an audio file

What this node does

This node sends Jarvis's final reply as a Telegram audio file.

How it works

It sends the generated audio back to the same Telegram chat and adds the final message as a caption.

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Requirements

Before using this workflow, connect the following credentials:

• Telegram Bot API
• OpenAI API
• Gmail OAuth2
• Google Calendar OAuth2
• Google Tasks OAuth2
• Google Sheets OAuth2
• Google Contacts OAuth2