That's a really good idea! That would handle micropayments that nobody would even bother with (to pay, to process, to receive, ...).

Could even have users select the payment %age or have it set by the contract tier between the app creator and the user (10% for simple user, 20% for pro access with other features, 40% enterprise,...).

Yes I agree strongly, if I could just make a small percentage for my mildly interesting LLM wrapper it would be perfect! @anthropic please implement this

That's what I've been preaching, too. The provider that does it, will win the game.