The UPS Shipping API provides UPS shipping functionalities to be integrated into websites and enterprise applications. This API enables the networking of shipping activities at different locations, dealers, and offices. Business customers will be able to utilize the breadth of UPS services and capabilities.
This API is available in XML format which allows the flexibility to integrate into website and application design and layout.
ShipStation is a web-based shipping solution that streamlines the order fulfillment process for online retailers. With real-time integrations into popular marketplaces including Amazon, eBay, Sears,...
The ProgrammableWeb directory has over 70 package tracking APIs to help educate developers on available shipment tracking options. The APIs contain various features such as package arrival verification, scanning services, price comparison, and more. Click here to learn about 7 of those APIs.