AJAX Cross Origin is a Chrome add-on designed to facilitate Cross-Origin AJAX requests without the hassle of setting up a local proxy. This jQuery plugin simplifies the process by allowing developers to make cross-domain calls effortlessly. Users can integrate this tool by including a simple script tag in their page header, enabling them to use the familiar jQuery.ajax() method with added support for cross-origin requests.

The implementation is straightforward; developers need to set the 'crossOrigin' option to true within their AJAX requests. This streamlined approach not only enhances productivity but also allows for seamless interaction with external APIs and resources. The demo page showcases its capabilities, making it easy to understand and utilize in various web projects.