Compatible request concepts
Keep familiar URL, language, text, chunk size and extraction-mode parameters.
A focused Supadata alternative for YouTube transcripts.
Capslane is intentionally narrower. It covers the transcript workflow needed by YouTube products, including captions, generated fallback, languages, timestamps, cache and asynchronous jobs.
Migration-shaped request
GET /v1/transcriptcurl 'https://capslane.com/v1/transcript?url=VIDEO_ID&lang=en&text=false&mode=auto' \
-H 'x-api-key: YOUR_API_KEY'YouTube-only focus50 free requests monthlyNative and generated text
Know exactly what the migration covers.
A useful comparison should expose gaps as clearly as strengths. Capslane is a direct fit only when YouTube transcripts are the product requirement.
Native and generated paths
Retrieve existing captions first or generate a transcript when the selected mode allows it.
Simple monthly allowance
Every accepted transcript request reserves one request unit. Job status checks are not counted again.
Transparent product scope
The public v1 API supports YouTube transcripts and does not imply unsupported social or web endpoints.
Migration visibility
Use request logs, source, cache status and request IDs to compare results during a gradual switch.
OpenAPI contract
Inspect the machine schema or the human API reference before changing a production client.
A safe migration path.
Compare the contract
Map the fields your application reads against the documented Capslane response.
Run representative videos
Test native captions, missing captions, language selection, cache hits and failed videos.
Switch gradually
Move YouTube transcript traffic first and keep broader provider endpoints unchanged.
Capslane and Supadata at a glance.
| Requirement | Capslane | Supadata |
|---|---|---|
| Primary scope | YouTube transcripts | Broader video, social and web APIs |
| Existing captions | Native manual and automatic tracks | Native transcript extraction |
| Missing captions | Local generated transcript job | Generated transcript mode |
| Output | Plain text or timestamped segments | Plain text or timestamped content |
| Allowance model | Transcript requests per month | Credit model with generated minutes charged separately |
| Best fit | Focused YouTube ingestion | Multi-platform content workflows |
Questions developers ask.
Is Capslane a complete replacement for every Supadata endpoint?
No. Capslane is a focused replacement for YouTube transcript extraction and generation. It does not currently replace web scraping, social-media metadata or multi-platform endpoints.
Can an existing transcript integration migrate gradually?
Yes. The Capslane contract accepts a YouTube URL, lang, text, chunkSize and native, auto or generate modes. Compare response fields in the API reference before switching production traffic.
How does generated transcript billing differ?
Capslane plans use a monthly transcript request allowance. The current Supadata documentation uses credits and charges generated transcripts by video minute.
Which service should I choose?
Choose Capslane for a focused YouTube transcript pipeline with simple request limits. Choose a broader provider when one contract must cover many social networks, web extraction or unrelated data endpoints.
Try the API on a real YouTube video.
Start free with no credit card and move to a paid plan when the integration grows.