ASPRunner.NET - RAD Web App and REST API Builder ASPRunner.NET is web rapid application development tool that creates ASP.NET MVC apps connected to just about any database. In the 10.4 release, it added support for REST APIs as a datasource. And, it is even a RAD REST API generator. I have built dozens of real world applications and APIs with this development tool. It generates the frame, but then gives you nearly unlimited flexibility to customize both the UI as well as the business logic.