Most websites can get NuCaptcha running from an API install in about 10 minutes, followed by 1-2 hours of customization. We're here to help, so if you have any questions please contact us!

NuCaptcha is currently available in PHP, .NET, and Java. We're putting the finishing touches on the NuCaptcha API for many other languages and platforms -- so let us know what you need and we'll get it to you ASAP.

General API Information

Download the latest version of the API from the download section.

Documentation on how to customize the NuCaptcha player on your website.

Documentation on how to configure NuCaptcha in a proxied environment.

Specific Language APIs

Documentation on how to install NuCaptcha into your Java website.

Documentation on how to install NuCaptcha into your .NET website.

Documentation on how to install NuCaptcha into your PHP website.

Plugins

Documentation on how to embded a NuCaptcha Demo in your sites. For demonstration and press sites only.

How to install NuCaptcha into your WordPress website.