I was using API located at http://smartbit.com.au to communicate with bitcoin testnet. Now API is not available anymore. Generally, whole service is gone. Some time ago (idk, like few weeks ago) chain.so API also vanished. Now this one. Also I'm having major issues while using blockcypher. Does anyone know what happened to them? Are they about to come back, or are they just gone? Maybe you can recommend other APIs with similar functionalities?

Cheers