I used SWIFT messages as part of my first real job (finance rather than tech). The format itself is comically loose, ill defined and fugly by any reasonable mea

I used SWIFT messages as part of my first real job (finance rather than tech). The format itself is comically loose, ill defined and fugly by any reasonable measure. When something really screwed up you resorted to sending MT599 messages around, free format text messages. I believe it's all SWIFT over IP this century so probably not dissimilar to any other API you might use.