youtube-voice-summarizer – OpenClaw Skill

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name: youtube-voice-summarizer version: 1.0.0 description: Transform YouTube videos into podcast-style voice summaries using ElevenLabs TTS author: Francisco Cordoba homepage: https://github.com/Franciscomoney/elevenlabs-moltbot license: MIT user-invocable: true metadata: {"openclaw":{"emoji":"🎙️","autoTrigger":{"patterns":["youtube.com/watch","youtu.be/","youtube.com/shorts"]}}}

YouTube Voice Summarizer

Transform any YouTube video into a professional voice summary delivered in under 60 seconds.

What It Does

When a user sends a YouTube URL, this skill:

1. Extracts the video transcript via Supadata
2. Generates a concise AI summary via OpenRouter/Cerebras
3. Converts the summary to natural speech via ElevenLabs
4. Returns an audio file the user can listen to

Requirements

This skill requires a running backend server. Deploy the summarizer service:

git clone https://github.com/Franciscomoney/elevenlabs-moltbot.git
cd elevenlabs-moltbot
npm install
cp .env.example .env
# Add your API keys to .env
npm start

Required API Keys

Service	Purpose	Get Key
ElevenLabs	Text-to-speech	https://elevenlabs.io
Supadata	YouTube transcripts	https://supadata.ai
OpenRouter	AI summarization	https://openrouter.ai

How to Use

When user sends a YouTube URL:

Step 1: Start the voice summary job

curl -s -X POST http://127.0.0.1:3050/api/summarize \
  -H "Content-Type: application/json" \
  -d '{"url":"YOUTUBE_URL","length":"short","voice":"podcast"}'

Returns: {"jobId": "job_xxx", "status": "processing"}

Step 2: Poll for completion (wait 3-5 seconds between checks)

curl -s http://127.0.0.1:3050/api/status/JOB_ID

Keep polling until status is "completed".

Step 3: Return the audio to user

When complete, the response includes:

• result.audioUrl - The MP3 audio URL (send this to the user!)
• result.teaser - Short hook text about the content
• result.summary - Full text summary
• result.keyPoints - Array of key takeaways

Send the user:

1. The teaser text as a message
2. The audio URL so they can listen

Voice Options

Voice	Style
podcast	Deep male narrator (default)
news	British authoritative
casual	Friendly conversational
female_warm	Warm female voice

Summary Lengths

Length	Duration	Best For
short	1-2 min	Quick overview
medium	3-5 min	Balanced detail
detailed	5-10 min	Comprehensive

Example Flow

User: "Summarize this: https://www.youtube.com/watch?v=dQw4w9WgXcQ"

1. Start job:

curl -s -X POST http://127.0.0.1:3050/api/summarize \
  -H "Content-Type: application/json" \
  -d '{"url":"https://www.youtube.com/watch?v=dQw4w9WgXcQ","length":"short","voice":"podcast"}'

2. Poll status with the returned jobId
3. When complete, send the audioUrl to the user

Text-Only Summary (No Audio)

For faster, cheaper text-only summaries:

curl -s -X POST http://127.0.0.1:3050/api/quick-summary \
  -H "Content-Type: application/json" \
  -d '{"url":"YOUTUBE_URL","length":"short"}'

Troubleshooting

"Video may not have captions"

• The video needs subtitles enabled on YouTube
• Auto-generated captions may take time on new videos

Audio URL not working

• Ensure BASE_URL in .env is publicly accessible
• Check firewall allows traffic on port 3050

Cost Per Summary

Service	Cost
Supadata	~$0.001
OpenRouter	~$0.005-0.02
ElevenLabs	~$0.05-0.15
Total	~$0.06-0.17

YouTube Voice Summarizer

Transform any YouTube video into a podcast-style voice summary in under 60 seconds.

Features

• Fast - Full voice summary in ~60 seconds
• Natural Voice - ElevenLabs multilingual v2
• Any Video Length - Works with 10 minutes or 10 hours
• Multiple Voices - 4 voice styles to choose from
• Customizable Length - Short, medium, or detailed summaries

Quick Start

1. Deploy the backend server from GitHub
2. Configure your API keys (ElevenLabs, Supadata, OpenRouter)
3. Add this skill to your OpenClaw bot
4. Send YouTube links and receive voice summaries!

How It Works

YouTube URL → Supadata (transcript) → AI (summary) → ElevenLabs (voice) → You

API Keys Required

Service	Purpose	Link
ElevenLabs	Text-to-speech	https://elevenlabs.io
Supadata	YouTube transcripts	https://supadata.ai
OpenRouter	AI summarization	https://openrouter.ai

License

MIT - Francisco Cordoba