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A smart captcha library
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Russian Post tracking toolset, consisting tracking form bot (since Russian Post is too retarded for normal API) and captcha solver/recognizer.
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dongsx
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Integrate the AreYouAHuman.com CAPTCHA alternative human verification into your Ruby/Rails application
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This is a gem wrapper for tiny captcha in C with no dependencies.
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Define questions and answers in a YAML file and validate your models with a single line of code. No more captchas or other stupid tricks.
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Implementation of captcha (Completely Automated Public Turing-Test to Tell Computers and Humans Apart) that is both easy to use and easy to customize/extend.
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API to interact with BrandCAPTCHA http://www.pontamedia.com/en/brandcaptcha/
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This gem enable to use Captchme. Anti spam, Monetize captcha and Audience qualification
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IQ, Math Captcha
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A simple and fast image captcha generator that uses opencv and memcached.
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create captcha for api based project
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Forked from https://github.com/kares/simple_captcha
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