In the last couple of years, stablecoins have probably been the biggest development in the whole world of cryptocurrency. While true cryptocurrencies, such as for instance Bitcoin or Ethereum, will indeed change value, stablecoins are being built so that they will have a set value, usually against a fiat currency like the euro or the dollar. Such stability would intermediate between old finance and cryptocurrencies by facilitating quicker cross-border settlement, lower transaction charges, and greater financial inclusion. But the resulting boom has also created regulatory problems worldwide in consumer protection, systemic risk, and monetary sovereignty. The regions have reacted differently towards regulating stablecoins, which are lessons of paramount significance to the international financial system.