Using APIs, a bank can create mobile apps. But by using open APIs, the bank can
also expose that same functionality to other integrators at point of sale, via online
e-commerce sites, or even embedded into another app.
One European bank created a peer-to-peer free payment mobile app service available to anyone, whether they are an existing bank customer or not. Transaction processing fees provide some revenue. But the widespread acceptance of the brand elevated the bank to be the first point-of-call for business payment functions as well. They now have over 25,000 businesses using the same payments functions they first made available in their mobile app.