Developer API

The YouTube developer APIs pillar. See index and YouTube Brain Home.

• API Overview and Auth: Data API v3, API key vs OAuth, scopes, the token flow.
• API Resources and Methods: search, videos, channels, playlists, comments, captions.
• API Quota System: the 10,000 units/day model and per-call costs.
• Analytics and Reporting API: targeted queries vs bulk daily reports.
• Subscriptions and Members API: the subscriptions resource and the creator-only members surface.
• Push Notifications and WebSub: real-time upload pushes instead of polling.
• API Policies and Limits: Terms of Service, data-handling rules, the compliance audit, Live Streaming API.

These describe the developer surface, distinct from the creator-growth and advertising pillars. The brain’s own adapters (youtube_brain/adapters.py) operate on exported data and do not call the live API.