Telegram voice assistant with OpenAI & Gmail: manage & draft emails via voice

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

Telegram AI Voice & Email Assistant: Manage, Draft & Discuss Emails via Voice Who’s it for This workflow is perfect for professionals and teams who want to manage email communications hands free di...

Best for

AI Chatbot automation workflows
advanced n8n builders looking for reusable templates

Tools used

@n8n/n8n-nodes-langchain.memorybufferwindow, n8n-nodes-base.telegramtrigger, n8n-nodes-base.set, n8n-nodes-base.switch, n8n-nodes-base.telegram, @n8n/n8n-nodes-langchain.openai, n8n-nodes-base.gmailtool, @n8n/n8n-nodes-langchain.lmchatopenai

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Telegram voice assistant with OpenAI & Gmail: manage & draft emails via voice
Workflow name: Telegram voice assistant with OpenAI & Gmail: manage & draft emails via voice

Telegram AI Voice & Email Assistant: Manage, Draft & Discuss Emails via Voice

Who’s it for

This workflow is perfect for professionals and teams who want to manage email communications hands-free directly from Telegram. Simply send a voice message to your bot and seamlessly check your recent emails, draft or send a reply, and discuss email threads—all powered by OpenAI’s transcription and chat capabilities, with no third-party voice agent required.

How it works / What it does

Sends voice messages to a Telegram bot, which are then transcribed via OpenAI.
Retrieves recent emails, drafts, or sends replies based on your commands.
Engages the user in conversational discussion about email content using OpenAI chat.
Responds in text or synthesized voice (OpenAI), creating a natural interactive experience.
Automates email management from Telegram, keeping you efficient on the go.

How to set up

Create a Telegram bot via @BotFather and obtain your API token.
Add the OpenAI API key and Gmail OAuth credentials to n8n.
Assign your credentials to the Telegram, OpenAI, and Gmail nodes (Draft/Send/Get Email).
Deploy and activate the workflow.
Interact with your Telegram bot: just send voice messages and let the assistant manage your emails!

Requirements

Telegram Bot Token
OpenAI API Key
Gmail OAuth Credentials

How to customize the workflow

Adjust the Switch node to route and handle new message types or responses.
Integrate additional services such as Slack, Notion, or custom tools as needed.
Fine-tune prompts or the OpenAI transcription settings for your specific use case.
Modify email templates and memory/session nodes for advanced conversation flows.
Embed video guides or extra sticky notes for enhanced onboarding and usability.

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 - Window Buffer Memory

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

Block 2 - Telegram Trigger

Type / Role: n8n-nodes-base.telegramTrigger - telegramTrigger
Config choices: Version 1.1

Block 3 - Set 'Text'

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

Block 4 - Switch

Type / Role: n8n-nodes-base.switch - switch
Config choices: Version 3.2

Block 5 - Download File

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

Block 6 - Transcribe

Type / Role: @n8n/n8n-nodes-langchain.openAi - openAi
Config choices: Version 1.6

Block 7 - Draft Email

Type / Role: n8n-nodes-base.gmailTool - gmailTool
Config choices: Version 2.1

Block 8 - OpenAI Chat Model1

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1.2

Block 9 - Transcribe1

Type / Role: @n8n/n8n-nodes-langchain.openAi - openAi
Config choices: Version 1.6

Block 10 - Send Email

Type / Role: n8n-nodes-base.gmailTool - gmailTool
Config choices: Version 2.1

Block 11 - Get Emails

Type / Role: n8n-nodes-base.gmailTool - gmailTool
Config choices: Version 2.1

Block 12 - Email Manager

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 1.7

Block 13 - Sticky Note8

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

Block 14 - Audio Response

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

Block 15 - Text Response

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

3. Summary Table

Workflow	Telegram voice assistant with OpenAI & Gmail: manage & draft emails via voice
Complexity	advanced
Nodes	15
Categories	AI Chatbot
Author	Barbora Svobodova
Published	07 Oct 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/9339/9339.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 AI Chatbot workflows

Frequently asked questions

What does Telegram voice assistant with OpenAI & Gmail: manage & draft emails via voice 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 AI Chatbot use case.

Barbora Svobodova

3 workflows

Nodes

@n8n/n8n-nodes-langchain.memorybufferwindow n8n-nodes-base.telegramtrigger n8n-nodes-base.set n8n-nodes-base.switch n8n-nodes-base.telegram @n8n/n8n-nodes-langchain.openai n8n-nodes-base.gmailtool @n8n/n8n-nodes-langchain.lmchatopenai

Complexity

advanced

Published 07 Oct 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/9339/9339.json

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Telegram voice assistant with OpenAI & Gmail: manage & draft emails via voice

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Telegram AI Voice & Email Assistant: Manage, Draft & Discuss Emails via Voice

Who’s it for

How it works / What it does

How to set up

Requirements

How to customize the workflow

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Window Buffer Memory

Block 2 - Telegram Trigger

Block 3 - Set 'Text'

Block 4 - Switch

Block 5 - Download File

Block 6 - Transcribe

Block 7 - Draft Email

Block 8 - OpenAI Chat Model1

Block 9 - Transcribe1

Block 10 - Send Email

Block 11 - Get Emails

Block 12 - Email Manager

Block 13 - Sticky Note8

Block 14 - Audio Response

Block 15 - Text Response

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