The job of a good application program interface (API*) is to provide all the building blocks for developing a system/program so that a programmer can then put these blocks together in the best possible way. As FinTech companies are sprouting quickly the world over, we take a look at the necessary qualities that a good FinTech API needs to incorporate to help the world of code in building FinTech products and services. 1. Make it easily adaptable and moldable. APIs must adapt to its specific use scenario so that a developer can get what he or she wants out of it with minimum coding efforts; most API sellers fail in offering this.

http://letstalkpayments.com/what-makes-for-a-great-fintech-api/