There are VPS services that don't require identity and accept bitcoin. Their are agent APIs that don't require identity and accept bitcoin. How long would it take for an agent to figure out how to make enough bitcoin to sustain itself? Probably longer than its seed funds would sustain it. But the tech and infra is there.
Maybe lawyers would say AWS is the owning party, but AWS isn't going to buy it stuff or subsidize its bill, and AWS isn't going to accept bitcoin anyway. An autonomous agent wouldn't survive on a platform that doesn't accept bitcoin as payment.
But what about agents that don't have "owners" or anyone that would do that for it? What about child agents? What about autonomous agents kicked off by a dead person?