You’ve been tasked with integrating shipment tracking, and the API you pick decides how many engineering hours go into carrier data and missed webhooks later. On the facts each vendor publishes, meaning status depth, carrier coverage, webhook retries and uptime commitment, the AfterShip Tracking API is the stronger choice for multi-carrier, high-volume builds. It publishes 9 statuses with 52 sub-statuses, 2,000+ carriers, up to 14 webhook delivery attempts and a 99.9% uptime SLA with service cre