PAX Middleware is a Chrome extension developed by Sante Technologies, Inc. It serves as a middleware between their point-of-sale web application and PAX payment processor terminal devices located on the local network. This extension is specifically designed to address the challenge of establishing an HTTP connection between the Sante point-of-sale web application, which runs on HTTPS, and the PAX payment processor devices that require an HTTP connection.

With PAX Middleware, Sante Technologies' web application can now seamlessly send HTTP requests to local PAX devices directly from an HTTPS Chrome web page. This enables smooth communication and integration between the web application and the PAX payment processor terminals, ensuring a seamless payment processing experience for users.

The extension is available for free on the Chrome platform and falls under the category of Browsers, specifically under the Add-ons & Tools subcategory. It provides a crucial solution for businesses using Sante Technologies' point-of-sale web application and PAX payment processor terminals, allowing them to streamline their payment processes efficiently.