CSPs increasingly work with enterprise to provide B2B2X propositions in a variety of sectors including transport, financial services and entertainment. These partnerships generally make use of APIs (application programming interfaces) to share usage information and facilitate transaction settlements. Earlier phases of this Catalyst explored the potential to use standardized APIs to increase network monetization, developing a reference solution that could be employed in the metaverse – interoperable virtual environments rendered in three dimensions. The third phase plans to showcase interactions between stakeholders in the API monetization ecosystem across multiple processes. These include onboarding, requests for API access, the consumption of network APIs and the sharing of revenue (by exposing usage management APIs). It will draw on APIs developed by TM Forum and CAMARA, the open source project for developers to access enhanced network capabilities, to create an end-to-end solution for monetizing network capabilities. ABI Research has forecast that the telco API market will expand significantly, to generate more than US$150 billion in annual revenue by 2030. This stage of the Catalyst will help CSPs pursue this major opportunity, and plans to focus on specific journeys, identifying the likely revenue growth once the solution is deployed.