Thank you for the tips guys!
Maybe another solution is create my own wallet system inside my project right?
Do you recommend any good wallet project repository?
I don't think there is any open source multi coin wallet script/repository available out there, either you have to hire someone to make one for you or buy the running one.
I have no idea how all this multicoin wallet makes money for themselves, may be its fee they take which is more than what is recommended or from listing charges.
