Google’s Chromecast dongle for pushing digital content from ones phone, tablet, or laptop to a TV screen isn’t exactly a high-end device – the full retail price is $35, and it’s on sale constantly – but its unexpected to many been a huge success for the company. Over 17 million of the dongles have been sold, the Cast button has been pushed over 1.5 billion times, and Google says Chromecast users consume 66% more content per day than when the device launch in 2013. To push the network of Cast buttons and supported content even further, Google has released some new APIs for developers to build richer experiences.

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