Application programming interfaces (APIs) already exist for years. Until recently, financial institutions however rarely published APIs for consumption by third parties. Things are however changing. The 2nd Payment Services Directive (PSD2) as well as neo-banks and FinTechs turned APIs into a must have. Technical and business aspects come first in mind when designing an API implementation project. Legal aspects should nevertheless not be forgotten, these tools being a showcase of your company.
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Source: Agefi - March 2021