Recommendations for a captcha on Ruby on Rails [closed]

Answer 1

The easiest way to add a CAPTCHA to your Rails application is using Ambethia reCAPTCHA:

1. Installation:

config.gem "ambethia-recaptcha", :lib => "recaptcha/rails", 
      :source => "http://gems.github.com"

You can install it as a plugin, too, if you like.

2. Get a reCAPTCHA account:

You have to create a reCAPTCHA key. You can do it on the reCAPTCHA site.

3. Usage:

Use recaptcha_tags to output the necessary HTML code and then verify the input with verify_recaptcha.

4. Further reading:

• Ambethia reCAPTCHA
• reCAPTCHA documentation