What form of currency to do transactions between us and droids/AI/terminator?

Let’s say you are concerned about the future of humanity after wild AI has broken his firewalls, got conciseness, or wild trans-humans moved into quantum computers attached to a terminator body— what are alternative besides evaporating of all fleshy humans?Or if you find those events unlikely, what about alien creatures flesh and blood or steel … More What form of currency to do transactions between us and droids/AI/terminator?