This just send ecash to npub
I think theres a few options
Npub.cash and cashu.me wallet also have this option
Discussion
Yes, but apart from a relay (which is also needed for zapping if i remember correctly) no wallet provider has to be involved right? I've never gone deep into it, maybe the protocol does not allow it on zapping? If i ask stupid questions just shut me up and i'll go read nips first.