Nowadays an ecosystem of payment systems is rising; branchless banking is becoming a reality; and a number of peripheral applications are being deployed in MFIs. That’s why ADBanking Channel Manager, an Application Programming Interface (API) for ADBanking Core Banking System was developed. The Channel Manager allows third-party applications to interact with the core banking system where those applications can retrieve data from the core database and can post transactions. The Mobile Banking module and Internet Banking module use the Channel Manager to interact with the core banking system. Due to the Channel Manager, a third party human resources management system is also linked to ADBanking.