Aaron D. Campbell

This plugins gives you a great framework to use for integrating with PayPal. 
It stores both live and sandbox API credentials and allows you to switch back 
and forth easily. All NVP API calls are passed through the framework and 
default values such as API version, API credentials, and even currency code are 
added to the request based on settings from the admin panel.
It also has a built in IPN listener that validates messages as coming from 
PayPal then throws WordPress actions based on messages received. For example it 
throws “paypal-recurring_payment_profile_cancel” when someone cancels a 
recurring payment that they had set up with you. It passes along all the info 
that PayPal sent to the action, so it’s simple to create other plugins that use 
this one.
Requires PHP5.
You may also be interested in WordPress tips and tricks at <a href="http://wpinformer.com" rel="nofollow ugc">WordPress Informer</a> or gerneral <a href="http://webdevnews.net" rel="nofollow ugc">Web Developer News</a>

PayPal Framework

PayPal integration framework and admin interface as well as IPN listener.

Jose Mortellaro

Scott Paterson

WPPlugin LLC

Restore PayPal Standard For WooCommerce allows you to use the PayPal Standard gateway as a payment method for <a href="https://wordpress.org/plugins/woocommerce/" rel="ugc">WooCommerce</a>.
As of version 3.0, this plugin includes PayPal Standard code, ensuring it continues to work even if WooCommerce removes it entirely in future releases.
Previously, this plugin only re-enabled the menu item while PayPal Standard code was still bundled with WooCommerce. Since WooCommerce has been gradually deprecating PayPal Standard, this plugin offers a reliable way to keep using PayPal Standard in WooCommerce it without disruption.
PayPal has confirmed that they have no current plans to discontinue support for PayPal Standard.
This plugin is created by an official PayPal Partner. This plugin is not an official WooCommerce add-on or extension and is not affiliate in any way with WooCommerce, WordPress, or Automattic Inc

Restore PayPal Standard for WooCommerce

I'm the author but also a user of this plugin. This is a very simple and light plugin to restore PayPal Standard as a payment method. I love it :)

From the author


The new version of this plugin works correctly on WooCommerce.


Works correctly on WooCommerce

Re-enables the PayPal Standard payment gateway for WooCommerce.

PayPal Framework vs Restore PayPal Standard for WooCommerce