Manage Calendar with Voice & Text using GPT-4, Telegram & Google Calendar

n8n template #4102

Summary

Manage Calendar with Voice & Text Commands using GPT-4, Telegram & Google Calendar This n8n workflow transforms your Telegram bot into a personal AI calendar assistant, capable of understanding both voice and text commands in Romanian, and managing your Google Calendar using the GPT-4 model via LangChain. Whether you want to create, update, fetch, or delete events, you can simply speak or write your request to your Telegram bot — and the assistant takes care of the rest. 🚀 Features Voice command support using Telegram voice messages (.ogg) Transcription using OpenAI Whisper Natural language understanding with GPT-4 via LangChain Google Calendar integration: ✅ Create Events 🔁 Update Events

How to set it up

Open template #4102 on n8n.io and click Use for free, or copy the template JSON and paste it onto an empty canvas in n8n.
Create 3 credentials under Credentials → Add credential: Telegram, OpenAI Chat Model, OpenAI. Then open each of those nodes and pick the credential.
Check the model in the AI Agent node. The template may point at a model your account can't use; swap it for one you have access to.
Click Execute workflow and step through each node's output to confirm the data looks right.
Toggle the workflow to Active so its trigger runs on its own.

Hand off to your agent

Prompt

Help me set up the n8n workflow "Manage Calendar with Voice & Text using GPT-4, Telegram & Google Calendar" (https://n8n.io/workflows/4102). It uses: Telegram, AI Agent, OpenAI Chat Model, OpenAI. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.

Paste into Claude Code and it will do the rest.

Apps and nodes

Telegram AI Agent OpenAI Chat Model OpenAI

Questions

Yes. Marian Tcaciuc published it free on n8n.io, and it has 6,002 views. It runs on n8n Cloud or a self-hosted n8n instance.

Telegram, OpenAI Chat Model, OpenAI. The other 1 node are built into n8n.

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