UPS Tracking as a standalone feature?

My client has a UPS location point that allows people's packages to be delivered to their store if they are not home. They'd like to offer UPS Tracking ability on their website for their customers (to be able to see if their package was delivered) I know UPS offers a Tracking API to be able to show this on the website, but I'm not sure on how to install it. Is there a stand alone plugin that is not part of an e-commerce solution to track UPS packages? Or is there any documentation on how to integrate the UPS API with Wordpress?