API Blueprint is simple and accessible to everybody involved in the API lifecycle. Its syntax is concise yet expressive. With API Blueprint you can quickly design and prototype APIs to be created or document and test already deployed mission-critical APIs. API Blueprint is built to encourage dialogue and collaboration between project stakeholders, developers and customers at any point in the API lifecycle. The API Blueprint language is recognized by GitHub. API Blueprint is completely open sourced under the MIT license. API Blueprint is built to encourage better API designs through abstraction. API Blueprint is all about the design-first philosophy. Thanks to its broad adoption there is a plethora of tools built for API Blueprint. To get started with API Blueprint you will need a plain-text editor. Check the Documentation section for additional resources on the API Blueprint syntax.