RapidAPI is described as 'Lets you easily find and connect to practically any API in the world while also providing the easiest way to track and manage the ones you use, in just one place. No need to search through massive API docs either, RapidAPI's intuitive interface gives developers a' and is a backend as a service in the development category. There are more than 50 alternatives to RapidAPI, not only websites but also apps for a variety of platforms, including Self-Hosted, Android, iPhone and Windows apps. The best RapidAPI alternative is Supabase, which is both free and Open Source. Other great sites and apps similar to RapidAPI are Firebase, PocketBase, Strapi and Tina CMS.