Question 1

Is there an official YouTube Transcript API?

Accepted Answer

YouTube's Data API v3 provides caption download through the captions.download endpoint, but requires OAuth and channel owner permissions for most videos.

Question 2

Can I use NoteLM's transcript extraction programmatically?

Accepted Answer

NoteLM is primarily a browser tool. For programmatic access, consider youtube-transcript-api (Python) or similar open-source libraries.

Question 3

What open-source libraries exist for transcript extraction?

Accepted Answer

Popular options: youtube-transcript-api (Python), youtube-transcript (Node.js), and youtubei.js. These extract public caption data.

Question 4

Are there rate limits for caption APIs?

Accepted Answer

YouTube's official API has quota limits. Third-party libraries may face IP-based rate limiting if overused. Implement delays between requests.

Question 5

Can I build an app using YouTube transcripts?

Accepted Answer

Yes, but respect YouTube's Terms of Service. Caption data from public videos can be used in applications, but avoid excessive automated scraping.

Question 6

How do I get transcripts for my own videos via API?

Accepted Answer

Use YouTube Data API v3 with OAuth. As channel owner, you have full access to download and manage your video captions.

Question 7

Is commercial use of transcript data allowed?

Accepted Answer

Review YouTube's Terms of Service. Generally, using public caption data for value-added services is acceptable, but redistributing YouTube content isn't.

YouTube Transcript API for Developers FAQ

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