Website to search for android libs to use inside build.gradle

I remember there was a website where you could search for android libraries and it would give you an url which you could use in your build.gradle file, like this: ``` apply plugin: 'android' repositories { mavenCentral() } dependencies { compile 'com.android.support:support-v13:+' compile '<an-url-you-would-put-here>' } ``` Unfortunately I can't find it anymore, does anyone know about it? I think it was hosted on appspot.com