Enterprise APIs often incur significant hidden costs that are not easily tracked, unlike visible expenses such as hosting and infrastructure. These hidden costs arise from issues like unproductive meetings, duplicate services due to lack of API visibility, and stale documentation leading to production incidents. A comprehensive API catalog can mitigate these costs by promoting reuse instead of rebuilds, saving substantial amounts on development and maintenance. The catalog facilitates better organization, governance, and self-service, allowing teams to find and trust existing APIs quickly, thereby enhancing organizational efficiency and competitive advantage. The financial benefits of an API catalog can be substantial, with potential annual savings and a high ROI, as teams can avoid unnecessary rebuilds and reduce the time spent in coordination meetings, ultimately accelerating time-to-market and fostering innovation.