All these organizations say their APIs continue to evolve, adding new functionality, responding to feedback from developers and customers and figuring out what data to make available. "You've got to release the right kind of data with the right documentation. Really, it comes down to what customer problems are you going to solve by doing what you do," Bendt says. "It's not a launch-it-and-leave-it type of capability. It's constant learning and constant improvement."
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