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.

Knox Payments


This plugin enables WordPress posters to use a simple shortcode to grant access to a Knox Payments endpoint.


You have two options to get the plugin installed on your blog:

1) Upload the knoxpayments-wp.php file itself to

2) Use the .zip file contained in the source and navigate to the plugin management page, and click the add new button next to the Plugins header.

After you do that, activate the plugin in the plugin maintenance page, and navigate to Settings -> Knox Payments.

Upon arrival at that page, fill out the API Key, API Password, the custom text you want to appear on the button, the recurring field, show all, description of the payment, and finally the callback url.

Save the changes, use the shortcode knox anywhere in your blog, and then your blog is integrated with Knox Payments!

The user is able to decide the amount to pay by default, if you want to set a specific amount use the shortcode simply provide the amount to the shortcode likes this: [knox data_amount=’10’].


  • What is Knox?
    Knox is a payment processing system that connects customers’ banks with a merchant to enable electronic payments.

  • How does it work?
    A customer simply selects his or her bank and enters a username and password to make a payment directly to the merchant.

  • What does it cost?
    The first 10 payments each month with Knox are totally free as are all payments under $2.00. Payments after that are only 18¢ each.

  • Is Knox safe?
    Knox uses a layer of additional security atop your online banking to safely process your payment. We never store banking information and we never send it to the merchant.

    • How do I get my Key/Password?
      Simply sign up at:

Contributors & Developers

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

Translate “Knox Payments” into your language.

Interested in development?

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



Initial Release