Integrate a variety of USPS Web Tools™ into your website, shipping operation, or customer service center – for no additional fee! Our Application Program Interfaces (APIs) provide U.S. Postal Service® rates, shipping labels and much more while keeping your customers on your Web site.
Types of USPS Web Tools Available:
- Address Information APIs
Make sure your mailing addresses are correct. Additional permission is required to use these Web Tools.
- Delivery Information APIs
Check estimated delivery times prior to mailing or check the delivery status of your package after mailing.
- Rate Calculators APIs
Determine postage rates based on weight, class of mail, and origin/destination information.
- Shipping Labels APIs
Need to print shipping labels? Print everything from single-ply Express Mail® to First-Class Mail® labels (parcels only) with no fee or reduced fee Confirmation Services.
- Carrier Pickup™ APIs
Submit a request online to have your carrier pick up your packages when your carrier arrives with your regular mail delivery.