My reply is to the question "Is there currently any music streaming service with an officially supported API?" not "Is there currently any music streaming service that offers an API exactly like libspotify".
However, the question was asked as a top level reply to a post indicating Spotify has shut down libspotify. So congrats, you answered a question with an an answer that was technically correct to the literal text but misses the point with the context that's there in a way that can't be useful to the asker.