Are You a Human (Drupal)

"Are you a human" is a hosted CAPTCHA tool.

The module allows their CAPTCHAs to be used inside Drupal-powered sites.

Installation:

Unpack in the module folder (usually /sites/all/modules/) and enable under Admin Panel > Modules. Or use the module uploading utility.

Plugins and libraries for other platforms include:
Python
PHP (official)
PHP
Ruby
Perl
Java
.NET
Node.js (JavaScript)
WordPress
vBulletin
IP.Board
phpBB

Features:

• Add CAPTCHA field to comment form
• Add CAPTCHA field to the site contact form
• Add CAPTCHA field to login form
• Add CAPTCHA field to registration form
• Add CAPTCHA field to user password recovery form

Requirements:

• Are You a Human API key credentials
• Drupal 6.x/7.x