#micropayment — Public Fediverse posts

Here’s a half-baked idea that many have probably thought before but I’ll share anyways:
A federated tool that allows you to “like” websites and then have that “like” linked to an account that pays that site a #micropayment out of a fixed “like budget.”
You’d also get a discovery tool as well, viewable through the #Fediverse, in addition to a bookmark tool.
Essentially #socialbookmarking with #micropayments.
Does this exist?