Technological advancements have shifted businesses towards using REST-based APIs, which are lighter and easier to understand compared to SOAP Web services, for developing enterprise APIs. These APIs can be categorized into internal and external types, with internal APIs being used within a company's line of business to enhance efficiency in areas like product development, HR, and customer service, while external APIs are designed for broader access, allowing both internal and external developers to innovate and create valuable applications. Effective API management involves documenting, publishing, sharing, controlling, and monitoring API usage, which is crucial for protecting sensitive data, managing API lifecycles, and offering differentiated access. Despite the differences, both internal and external APIs are vital for enterprise operations, and businesses often start with internal APIs before expanding to external ones. Platforms that facilitate the seamless rollout and management of both types of APIs are instrumental in helping enterprises build robust API ecosystems.