Comment by PhilippGille

I think micropayments are important for a healthy web economy.

In 2018 I built a pay-per-call API paywall using the Lightning Network (a Bitcoin Layer 2 protocol/network that enables instant, low-fee payments): https://github.com/philippgille/ln-paywall

But most people are either unwilling to touch crypto at all, or holding on to it tightly as investment and not willing to use as payment. So I wish you luck to make this work in the fiat world!