Schedule appointments via Telegram with GPT-4o & Google Calendar
Needs changesNeeds changes. This template uses 1 thing(s) that n8n 3.0 removes: AI Agent v1 (old agent modes). 1 breaking item(s) found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 6 nodes and runs on Telegram events (message). Along the way it connects OpenAI Chat Model, Google Calendar and Telegram.
How it runs
Trigger: On Telegram events (message).
- AI Agent: runs an AI agent, with model: OpenAI Chat Model; 1 tool (Google Calendar); memory: Simple Memory
- Telegram: uses Telegram
Services it uses
Before you upgrade to n8n 3.0
1 thing in this workflow is removed in n8n 3.0. Fix it before you upgrade:
- AI Agent v1 (old agent modes) in AI Agent (v1.9): replace with Latest AI Agent node (Tools Agent). For SQL Agent, use a Postgres or MySQL tool with a recent AI Agent.
Rather not rewrite it? Many of these flows can be rebuilt in Make (free plan).
| Removed in 3.0 | Replace with |
|---|---|
| AI Agent v1 (old agent modes) AI Agent (v1.9) | Latest AI Agent node (Tools Agent). For SQL Agent, use a Postgres or MySQL tool with a recent AI Agent. |
Nodes used (6)
- AI Agent
@n8n/n8n-nodes-langchain.agent - OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi - Simple Memory
@n8n/n8n-nodes-langchain.memoryBufferWindow - Google Calendar Tool
n8n-nodes-base.googleCalendarTool - Telegram Trigger
n8n-nodes-base.telegramTrigger - Telegram
n8n-nodes-base.telegram
From the author
🔧 How It Works Telegram Trigger – Listens for incoming messages from users via your Telegram bot. Watch Full Step-by-step Guide Video here: https://www.youtube.com/watch?v=GzWO71lyI8 AI Agent – Processes the message to determine the user's intent (booking or…