- 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:
- Extracts the video transcript via Supadata
- Generates a concise AI summary via OpenRouter/Cerebras
- Converts the summary to natural speech via ElevenLabs
- 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 startRequired 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_IDKeep 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 contentresult.summary- Full text summaryresult.keyPoints- Array of key takeaways
Send the user:
- The teaser text as a message
- 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"
- 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"}'- Poll status with the returned jobId
- 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 |