Multi-user Telegram bot to summarize & repurpose YouTube videos with GPT-4o
## 👤 Who’s it for
This workflow is for content creators, marketers, educators, or anyone who wants to **instantly summarize YouTube videos and repurpose them** into different formats (LinkedIn post, tweet, etc.) via a simple Telegram chatbot.
## ⚙️ How it works
This n8n automation listens for messages in Telegram. If the message contains a YouTube link, it:
- Extracts the video ID
- Fetches the video transcript using RapidAPI
- Cleans the transcript of any special characters
- Sends it to OpenAI to generate a summary
If the message is **not a link**, it simply acts as an AI chatbot using OpenAI with memory support.
✅ Supports follow-up prompts like:
- “Make it shorter”
- “Turn this into a LinkedIn post”
- “Create a tweet thread”
## 🧑🤝🧑 Multi-User Support
This Telegram bot supports multiple users simultaneously. It tracks memory and context separately for each user using Telegram's unique `chat_id`.
✅ Each user gets personalized AI replies
✅ Follow-up commands work per user
✅ No interference between users
## 🛠️ Requirements
- A Telegram bot token (get via [@BotFather](https://t.me/BotFather))
- An OpenAI API Key (from https://platform.openai.com/account/api-keys)
- A RapidAPI Key and Host (typically `youtube-transcript3.p.rapidapi.com`)
> 🚨 API keys must be added manually — they are not included in the template.
## 🧩 How to Set It Up
1. Configure the **Telegram Trigger node** with your bot token.
2. In the **HTTP Request node**, set:
- `X-RapidAPI-Key`: your RapidAPI key
- `X-RapidAPI-Host`: your RapidAPI host URL
3. Add your **OpenAI API credentials** to the AI Agent node.
Use the provided sticky notes for guidance inside the workflow itself.
## 🎛️ How to Customize
- Modify AI prompt behavior in the **AI Agent node**
- Change the text formatting in the **Code node**
- Use a different transcript API if preferred
- Add commands like `make it into a blog post`, `summarize in bullet points`, etc.
## 📌 Notes
- All nodes are renamed to reflect their function
- API credentials are removed for security
- Includes colored boxes and sticky notes to guide the user
- Compatible with n8n cloud and self-hosted setups
