This plugin adds helpers for the YinXiangMa CAPTCHA API

This gem enable to use Captchme. Anti spam, Monetize captcha and Audience qualification

My version of SimpleCaptcha

This is a gem wrapper for tiny captcha in C with no dependencies.

这是一个验证码生成器。基于rucaptcha。本人只是将他的源码拉下来。为我的网站进行适配。因为我不使用sesion.id