uShip Published Rates API
Bookable, algorithmically priced rates published by service providers in response to shipping-customer rate requests, as an alternative to the auction/bidding flow. Covers the shipping-customer side (create a rate request, create an LTL rate request, retrieve rates, accept a rate) and the service-provider side (setup, rate request notification, create rate, booking acceptance notification), including the HTTP callback notifications uShip POSTs to a provider's recipient URL.