This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.



minotaur allows you to add CAPTCHA boxes for spam prevention, user friendly natural image recognition

Sign up now in order to get your private key.


  • NO Text Images, natural human image recognition
  • Fully configured from the admin panel
  • Setting to hide the CAPTCHA from logged in users and/or admins
  • Setting to show the CAPTCHA on the registration form and/or comment form


  • Works with WordPress 3.6+
  • PHP 4.3+
  • Your theme must have a <?php do_action('comment_form', $post->ID); ?> tag inside your comments.php form. Most themes do. If not, in your comments.php file, put before .


  1. Download the plugin and extract the folder contained within.

  2. Upload or copy the folder to your /wp-content/plugins directory.

  3. Visit and sign up for a FREE minotaur key

  4. Activate the plugin through the ‘Plugins’ menu in WordPress

  5. Go to the ‘Settings’ menu in WordPress and set your minotaur host private key


What is the key I need to provide?

After you sign up to minotaur and register your website. Once directed to allHosts, you will see your new domain and its private key.

Make sure to copy & paste the exact key value to your plugin’s settings.

The CAPTCHA is not being shown

By default, registered users will not see the CAPTCHA. Log out and try again.

If you don’t want to hide the CAPTCHA from registered users (or other permission groups), simply uncheck the ‘Hide CAPTCHA…’ option or change the desired permission group on the minotaur plugin’s settings.

Sometimes the CAPTCHA is displayed AFTER the submit button on the comment form

Best practice is to edit your current theme comments.php file and locate this line: ID); ?> Move this line to BEFORE the comment textarea and the problem should be fixed.

Alernately, you can check the ‘Rearrange CAPTCHA’s position on the comment form automatically’ option on the minotaur plugin’s settings, and javascript will attempt to rearrange it for you. This option is less recomended.

Contributors & Developers

“minotaur” is open source software. The following people have contributed to this plugin.

Translate “minotaur” into your language.

Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.



  • Release date: 22 Feb 2014
  • Release!