Further, is there any common gateway/api that links all daemons?
More info needed.
Hope some good guys help us.
I agree that this would be really cool and with all the alt coins developing I think there is a real need for a multi-coin wallet. I'm not sure if it's even feasible though because I know the client for each coin does so much. Would it just suck up too many comp. resources to be running multiple coins at once?
There is already a mult-coin wallet: https://mywl.lt/. It is easy to handle multiple daemons, if they run off of different ports, and there arent really apis for it, you will have to link manually which is actually pretty easy. If I was you, I wouldnt do this because if there is a security breach, you can pretty much go to jail...