Developers
A Castdeck template is a self-contained web page, shown as an OBS Browser Source, that reacts to your stream comments and gifts in real time. Build it with plain HTML/CSS/JavaScript and the CastdeckSDK.
Quickstart
A minimal template that runs in 5 minutes.
SDK Reference
The CastdeckSDK API and every field of the events you receive (ProjectedEvent).
Build with AI
A ready-made context pack you paste into ChatGPT / Claude / Cursor.
What you can build
Comment tickers, gift effects, level-up and alert overlays. No build step, one page.