If you don't know where to start, I suggest you to try Lumen, is a PHP framework to easily make API. - Source: Reddit / 4 days ago
Slim - A PHP micro framework
Laravel - A PHP Framework For Web Artisans
Leaf - Plug-n'-plant automatic cannabis home grow system
Trails - Trails is a web application framework for Node.js.
Fat-Free - PHP micro-framework designed to help you build dynamic and robust Web applications - fast
Iron - Extensible web framework for Rust