A simple, but secure PHP login script. Register, login, logout, email verification, password reset, edit user data, gravatars, captchas, remember me / stay logged in cookies, login with email, mail sending via PHPMailer (SMTP or PHP's mail() function/linux sendmail).
A more advanced PHP implementation of the JSONRPC Protocol
Debug your API Calls with a Symfony web profiler for guzzle
WordPress Advanced Access Manager Plugin
A WordPress plugin to create custom post lists
A distribution of Slim with some advanced features