Aspects of API governance, principles and patterns define the effective management of APIs within an organisation. So as to encourage usage and reuse of APIs, the fundamentals/ foundations of discovery, design, development, testing, deployment, optimisation and innovation paves the path following the crossroads of API maturity and supports streamlining of the future of the API estate. With more organisations embarking on the journey of digital transformation, the time is now or never, for APIs to evolve into powerful tools that has the potential to propel value and business growth within the market.