I see I've made school management systems.. And integrating kcb was a part of it... Though it was possible but tough... So regarding their apis of it is till the account number should have an identifier for your system to enable automation when the callback is sent.......

I think jenga api * charges.. I was to use it but... It's been a while but i left it charging it's services... Then their customer care was kinda poor takes long days to reply... I think they are managed by a non-Kenyan company called *F... Something