Open Bank Project

Open Bank Project is a leading open-source API middleware platform that connects legacy banking cores to a global ecosystem of fintech applications.

Managed by Berlin-based software house TESOBE, this platform provides a catalog of 500+ standardized APIs (including PSD2 and UK Open Banking compliance sets) to accelerate digital transformation. It bridges the gap between rigid core systems (like Temenos or Finastra) and modern third-party tools, enabling secure data sharing for over 40 financial institutions worldwide. Developers utilize its robust sandbox environment to build personal finance managers (PFMs) and automated lending platforms while maintaining strict bank-grade security protocols.

https://www.openbankproject.com/