COPCosco shipping lines Open api Platform
ShippingRates.NET wrapper to UPS, FedEx, USPS and DHL shipping rates APIs
php-tracking-urlsConverts package tracking numbers into URLs (UPS, FedEx, USPS, and more)
m2.ShippingTweaksMagento2. Extension hides any other shipping methods if free shipping is available.
usps-apiPython Wrapper for the USPS API 🚚 📦