YouTube transcripts as JSON, text, SRT or VTT in 150+ languages, with AI fallback.
TranscriptYT API is a free Video API that requires apiKey authentication, is served over HTTPS and supports CORS, so it can be called from the browser.
TranscriptYT YouTube Transcript API reference: authentication, /v1/transcript, languages, JSON/SRT/VTT formats, errors, rate limits, and MCP.
Details from transcript-yt.com.

Unified API suite · now live
Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
The TranscriptYT API is provided by TranscriptYT (transcript-yt.com). TranscriptYT YouTube Transcript API reference: authentication, /v1/transcript, languages, JSON/SRT/VTT formats, errors, rate limits, and MCP.
Yes. The TranscriptYT API is listed in the Video category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
Yes. The TranscriptYT API uses apiKey authentication, so you need to register for credentials before making requests.
Yes. The TranscriptYT API supports CORS, so front-end JavaScript can call it directly.
Yes. The TranscriptYT API is served over HTTPS, so it's safe to use in production.