> SWIFT/IBAN
You might be thinking about SEPA. SWIFT is slow, expensive and also available in the US.
One reason is that credit card fees are much higher than in Europe (up to 3% or so) due to lack of regulation (of course a significant proportion of those fees are returned to the card users as cashback, so it’s not like American companies are much more greedy, it’s still not a very efficient system of course..)