AsyncAPI 3.0 for Carrier Integration: Production Patterns That Solve Discovery and Ordering Challenges When REST APIs Aren't Enough
In 2026, major carriers including UPS, USPS, and FedEx will complete a shift that's been years in the making: retiring legacy carrier APIs in favor of more modern, secure platforms. For carrier integration middleware teams, this shift coincides with the 3.0 release in late 2023 cleaned up