How to create a Shipment API integration

thanks Bryan, that helps. In addition, do you have relationships/partnerships with the 3-4 major US carriers where you offer discounted rates to our merchants?? Meaning, rather than us having to integrate with a platform/service like shipstation or shippo to provide shipping services/rates/etc to our merchants, does Square have the relationships whereby we could just manage all of that with one integration (with Square)??