ReadMe.io has enhanced its API Explorer feature to facilitate better understanding and interaction with APIs, emphasizing hands-on use over extensive text descriptions. The API Explorer aims to simplify the process for both API providers and consumers by allowing users to manually describe their API or automatically generate documentation using ReadMe Sync. The company is also working on new features, including SSL, OAuth, and a new template, and invites user feedback on these developments. Additional resources, such as documentation and an interview with the creators, are available for those interested in learning more about the API Explorer.