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Cheaper labels.
Faster shipping.

Print, track and manage USPS shipping labels in bulk — with the lowest rates and a developer-friendly API.

Bulk in seconds Upload a sheet, get every label printed. No more one-by-one clicking.

Developer API Pre-shipment, tracking and barcode endpoints with simple auth.

Trusted at scale Powering thousands of merchants with millions of daily lookups.

100k+ Active users

1M+ Daily queries

99.9% Uptime