Is anyone else having trouble enabling the Mirror API in their developer console? It doesn't show up in mine after creating a new project for it.
Basically, create a project in API console, create an OAuth 2.0 client id, add [1] to the valid JavaScript origins and then paste your client id ({number}.apps.googleusercontent.com) into the playground [2].
[0]: https://developers.google.com/glass/playground-usage