Convert YouTube videos to audio summaries with Decodo, OpenAI & Telegram

Description

Stop watching long videos, start listening to concise summaries.

This workflow transforms any YouTube video URL sent via Telegram into a high-quality, spoken audio summary (MP3) and a structured text overview. It acts as your personal AI research assistant, turning lengthy content into bite-sized audio files that you can consume on the go.

It leverages Decodo for robust transcript extraction, OpenAI for intelligent summarization, and for realistic text-to-speech generation.

✨ Features
Telegram-First Interface:** Send links and receive audio directly in your chat app.
Smart Validation:** Automatically checks if the link is a valid YouTube URL before processing to save API credits.
Multi-Language Support:** Easily configure the output language (English, Spanish, German, etc.) via a simple Config node. The AI will translate and speak in this language.
Robust Error Handling:** Gracefully handles videos with no captions/transcripts by notifying the user instead of breaking the workflow.
Structured Data Extraction:** Uses AI to extract the Genre, Title, and Summary alongside the audio file.

⚙️ How it Works
Trigger: You send a YouTube URL to your Telegram Bot.
Validate: The workflow checks the URL pattern using Regex.
Extract: Decodo scrapes the video page to retrieve the full transcript JSON.
Process: A Code node flattens the complex JSON into a readable text format.
Summarize: OpenAI (gpt-4o-mini) analyzes the text and writes a script optimized for listening.
Speak: OpenAI converts the script into a high-definition MP3 file.
Deliver: The bot replies with the Audio File and a formatted text summary including the genre tags and original link.

📥 Decodo Node Installation

The Decodo node is used in this workflow for fetching the YouTube Transcript.

Find the Node: Click the + button in your n8n canvas.
Search: Search for the Decodo node and select it.
Credentials: When configuring the first Decodo node, use your API key (obtained with the 80% discount coupon).
Setup: Open the Decodo (Fetch YouTube Transcript) node to ensure it is correctly targeting the YouTube service.

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➕ How to Adapt the Template

This workflow is highly flexible and can be modified for various content tasks:

Change AI Model:* Easily swap the *OpenAI Chat Model* node with an *OpenAI* or *Anthropic (Claude)** node without altering the core logic.
Create Long-Form Drafts:** Modify the AI System Prompt to generate a full 1,000-word blog post draft or a set of social media updates instead of a short audio script.
Change Destination:* Replace the *Telegram* nodes with *Slack, **Microsoft Teams, Email (Gmail/SMTP), or Discord to deliver the audio and summary to your preferred channel.
Create an Archive:* Connect the successful output to a *Google Sheets* or *Airtable** node to keep a searchable archive of every video summary created.