A highly beta version of the User API is released, for now - only to get data (full JSON-RPC API comes later).

Visit https://www.bitlc.net/user/api for more info.

More to come later today

EDIT:

Released a full worker-stats api as well.
Now it's possible to get all previous round data for your users/workers..

I'm not sure if that's usable for anyone, but maybe!