I found Twidget to be quite intuitive, though it is still in its early stage of development. It is rich with useful and even powerful features that allow you to build complex logic custom APIs.

Twidget enables users to build complex, custom logic directly within its API endpoint builder—going far beyond standard functionality. For example, it can handle tasks like uploading a file, storing it in an internal file system, creating a corresponding record in an internal database with all relevant file data, generating a JSON object with any desired structure containing the file's metadata and a link to the file, and sending it back as a response—all within a single API endpoint call.

What sets Twidget apart is the convenience of its no-code graphical interface, making these advanced operations accessible even to non-developers. Additionally, the platform includes a wide range of data type handlers, converters, loops, and logical expressions such as if, if-else, and else statements. Even more impressively, these can be combined into user-defined custom functions, which can then be reused across different API endpoints for greater flexibility and efficiency. Another standout feature they offer is scheduled events, allowing you to automate API calls whenever a predefined trigger condition is met. While it doesn’t include SQL commands as a feature, it more than makes up for it with capabilities that competitors simply don’t offer.