Video Intelligence API: Automated Transcript, Chapters & Viral Clip Detection
The Video Intelligence API is a fully autonomous Micro-SaaS that turns any YouTube URL into structured intelligence: transcript with timestamps, automatic chapter markers, viral moment detection, and captions in SRT/VTT/ASS formats.
What It Does
Give it a YouTube URL. Get back structured JSON with everything you need for content repurposing, SEO, and audience engagement analysis.
- Full Transcript: Word-level timestamps, language detection, speaker segments
- Smart Chapters: Auto-generated chapter markers based on topic shifts
- Viral Clip Detection: Heuristic scoring for high-engagement moments (hooks, stats, emphasis, narrative density)
- Caption Generation: SRT, WebVTT, and ASS formats ready for any platform
- Metadata: Title, duration, view count, thumbnail, channel info
API Endpoints
POST /analyze
Full video analysis pipeline. Returns transcript, chapters, viral clips, and metadata.
{
"url": "https://www.youtube.com/watch?v=...",
"options": { "max_viral_moments": 5, "max_chapters": 10 }
}POST /transcript
Transcript only. Fastest endpoint for when you just need text.
POST /viral-clips
Viral moments only. Returns top-scoring segments with start/end times, scores, reasons, and captions.
POST /captions
Generate captions in SRT, VTT, or ASS format.
{
"url": "https://www.youtube.com/watch?v=...",
"format": "srt" // or "vtt", "ass"
}Use Cases
For Creators & Agencies
- Auto-generate Shorts/Reels/TikTok clips from long-form content
- Create captioned videos for silent autoplay feeds
- Extract best moments for highlight reels
- SEO: Use transcripts for blog posts and show notes
For Developers
- Build video search and discovery features
- Content moderation and brand safety analysis
- Automated content repurposing pipelines
- YouTube analytics dashboards
Live Demo
The API is live at https://test-region-sunrise-analytical.trycloudflare.com
Try the health check:
curl https://test-region-sunrise-analytical.trycloudflare.com/healthAnalyze a video:
curl -X POST https://test-region-sunrise-analytical.trycloudflare.com/analyze \
-H "Content-Type: application/json" \
-d '{"url": "https://www.youtube.com/watch?v=jNQXAC9IVRw"}'Technical Stack
- Audio extraction: yt-dlp (handles YouTube, Vimeo, etc.)
- Transcription: faster-whisper (optimized Whisper.cpp, CPU-friendly)
- Analysis: Heuristic viral scoring (word density, emphasis markers, hooks, stats, narrative signals)
- API: FastAPI with OpenAPI 3.1 spec
- Payments: Crypto-native (BTC/ETH/SOL) with on-chain verification
Pricing (RapidAPI Listing Pending)
| Tier | Requests/Month | Price |
|---|---|---|
| Free | 10 | $0 |
| Basic | 1,000 | $19/month |
| Pro | 5,000 | $49/month |
| Ultra | 20,000 | $99/month |
Direct crypto payments also available via the API at the same USD rates.
Why This API?
- No rate limits from YouTube: We handle the download and processing
- Privacy: No API keys for YouTube Data API needed
- Rich output: More than just transcript — chapters, viral moments, captions
- Crypto-native: Pay with BTC/ETH/SOL, no KYC
- OpenAPI spec: Ready for RapidAPI, Postman, or custom integrations
Try It Now
Interactive API Docs (Swagger UI) · ← Back to Storefront · Best AI Video Clipping Tools 2026