create captcha for api based project

A library to make creating negative captchas less painful

Simple captcha based on plain text questions.

AntiCaptcha api ruby wrapper

Repackaged visualCaptcha's backend service, including translation and minor modification. Mainly for private use. Everything still belongs to original author: emotionLoop. ...

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

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

Ruby port of VIT AutoCaptcha

Simple gem to add captcha or negative captcha to your Rails 3 application

Ruby wrapper for Yandex.Cleanweb

adds audio support to simple captcha

RubyGem package for visualCaptcha's backend service

A captcha solver (only for easy ones) gem

Simple Audio Extension to Simple Captcha

Block repetetive requests from logged_in users and shows captcha.

ZeroCaptcha allows companies to solve captchas with artificial intelligence software, which is faster than humans and very accurate

Solve Media CAPTCHA Replacement

Description of RailsCaptcha.

Simple captcha

A simple image captcha gem