USPS APIs System Release

Scheduled for Sep 17, 01:00 - 05:00 UTC

Scheduled

USPS is performing maintenance that is critical to its infrastructure. Customers using USPS APIs may experience a brief service disruption while performance improvements are applied. The impacted systems are done in a rolling fashion rather than all at once, and USPS states the disruption should only last several minutes. Delivery of packages is not impacted.

Posted Sep 09, 2026 - 15:27 UTC

This scheduled maintenance affects: Carrier APIs (USPS Direct API Status, PitneyBowes API).