Several enterprises are on an API journey , be it for regulatory reasons or as part of their overall transformation journey. A standardized API implementation is extremely critical for enterprises based on the domain they operate in. Infosys have built an Open Banking Platform driving industry standard APIs across verticals. This solution uses top down domain driven service and API discovery approach using APIs hosted on Infosys Banking API platform (iBAP) and powered by ADDI. The solution also ensures zero code change to create APIs by using IBM z/OS Connect for mainframe APIs. iBAP solution also embeds use of IBM CDP to gather all logs and using splunk/QRadar it generates insights on API usage and helps transactions from the UI all the way to the mainframe.-Bivas Banerjee-Infosys; Ravikiran Perumalla-Infosys; Hardik Dave-Infosys