Is there an API that I can use to take control of all the stuff in the dashboard via my own app? Like get all the players, analytics, make my own filters, adjust remote config etc. That would allow to put UGS on steroids 
Hello
You can either use the CLI or the rest apis to build your own tooling at this time.
CLI documentation: Unity Gaming Services CLI
Services Apis Documentation: https://services.docs.unity.com/
We are working on extending support for custom tooling in the future.
Thank you so much, exactly what I had hoped for!
The mechanism for getting to your analytics data is through unity’s Snowflake integration. Described here: Data Access