“We have created an operating system that at its core will let you build up internal courses, allowing cash-based and other payments from multiple service providers that can take one transaction and let that money go out to different places, to pay others."

https://techcrunch.com/2022/03/17/payrails-emerges-from-stealth-with-6-4m-led-by-a16z-to-build-the-os-for-payments/