A sender application running on the sender device uses the Google Cast API appropriate to its operating system to discover and transmit to the receiver application running on the receiver device. You can use the sender APIs to enable your Android, iOS, or Chrome app to send content to a large display.
The receiver device runs a scaled-down Chrome browser with a receiver application that receives data over Internet Protocol and transmits it to the television via HDMI. The receiver API lets you customize the messaging between the sender and receiver applications for authentication and other scenarios.
Google Cast Developer Preview lets you experiment with this unique second-screen functionality in your applications.
You can develop sender applications for Android, iOS, and Chrome which "cast" their content to a receiver device connected to a large display (television), and you can develop a receiver app that extends the default receiver functionality.
Note: You may not publicly distribute or ship your Google Cast application without written permission from Google, per the terms of service described on the Downloads page.
The APIs in this preview release are subject to change. This preview supports the same three platforms that are intended for the released product: Android, iOS, and Chrome. If you are developing a Chrome application, Google will need to whitelist your website for development. This process usually takes only a few days.
Visit Google Cast Developers Site
