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USPS Web Tools

USPS Web Tools
Do you need an easy way to integrate package shipments into your eCommerce web site?
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.