Any specification for the protocol that YGOPro is using?

Dear Author of mycard/srvpro,

I'm trying to find a protocol specification about the communication of YGOPro and srvpro(or other compatiable platform), but there are no specification found on internet.
May I know if there is any specification of this protocol?
Also, I'd be very thankful if the following up could be in Chinese.

Yours Faithfully,
yl12053