Google Calendar 📅 Reminder System with GPT-4o and Telegram

n8n template #3393

Summary

How many times have you missed a meeting or forgotten an appointment because a calendar reminder got lost in the noise? Traditional notifications are often dry, easy to ignore, or scattered across different apps—leaving you scrambling at the last minute. This smart Google Calendar workflow fixes that by sending you a clear, friendly reminder exactly 1 hour before your event starts—delivered through Telegram as if a personal assistant were looking out for you. Powered by AI, it transforms cold calendar alerts into warm, conversational nudges you won't ignore. Why This Works Better: ✅ No More Overlooked Alerts – Consolidates reminders into one clear, accessible place (Telegram), so you never m

How to set it up

Open template #3393 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, Google Calendar, OpenAI Chat Model. 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 "Google Calendar 📅 Reminder System with GPT-4o and Telegram" (https://n8n.io/workflows/3393). It uses: Telegram, Google Calendar, AI Agent, OpenAI Chat Model. 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 Google Calendar AI Agent OpenAI Chat Model

Questions

Yes. Davide Boizza published it free on n8n.io as a verified creator, and it has 27K views. It runs on n8n Cloud or a self-hosted n8n instance.

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

Similar workflows

NameViews