An Internal Developer Portal serves as an essential tool for managing APIs within a microservices architecture by housing an API catalog that simplifies API discovery, usage, and governance. This portal acts as a centralized, user-friendly interface that integrates various elements of software architecture, offering developers real-time insights into API performance and usage. It enhances developer efficiency by reducing cognitive load, enabling self-service actions, and supporting troubleshooting, maintenance, onboarding, and strategic planning. By incorporating APIs into the software catalog, the portal streamlines processes and fosters collaboration while adhering to organizational standards, ultimately allowing developers to focus on core development tasks and innovation without being bogged down by the complexities of API management.