Internal developer portals are crucial components of platform engineering, composed of a software catalog, scorecard layer, developer self-service actions, and workflow automation, all of which are designed to streamline and enhance software development processes. The software catalog provides developers and operations teams with essential metadata and contextual information about software and its resources. Scorecards maintain quality and standards by enabling the tracking of metrics related to production readiness and productivity. Developer self-service allows users to perform actions through a simple, no-code interface, reducing the workload on DevOps teams. Workflow automation integrates these elements, ensuring seamless interaction between humans and machines, and fostering efficient CI/CD processes. Ultimately, the interplay of these components supports the evolution of internal developer portals into platform APIs, enhancing collaboration and efficiency within engineering teams.