Shiv Prakash Tiwari

This free WordPress plugin allows to accept payments from credit/debit cards using Authorize.net Gateway. You can add more custom fields with any coding from wp-admin.
This allows you to add your own services lists and receive payments.
After a making payment, your customers will be receive invoice from Authorize.net. 
If you will enable send invoice option from your Authorize.net merchant account.
You can enable/disable send customer receipt setting from plugin setting option.
reCAPTCHA protects internet users from spam.
List all payments in wp-admin and print each payment receipt.

WP Service Payment Form With Authorize.net

WP Service Payment Form With Authorize.net allows to accept payments from credit/debit cards using Authorize.net Gateway with captcha.

Devendra Sharma

This is a Payment plugin that provides a points by Authorize.net which allows user buy points for purchase. To use this plugin just use the shortcode [cp_authtopupcp].
Features are as follows:
<ul>
<li>Shortcodes for displaying the form [cp_authtopupcp]</li>
<li>Settings screen for adjusting various settings</li>
</ul>
There are css styles that you can override in your own template.
I’m also available for paid support only should you need any.

CubePoints Authorize.net Module

This is a Payment plugin that provides a points by Authorize.net which allows user buy points for purchase.

WP Service Payment Form With Authorize.net vs CubePoints Authorize.net Module