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List of APIs

Make Shipping Easier

  

Select which APIs you’d like to integrate into your web site or software applications.

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Image of a mail box. Address Information

Never get another address or Zip Code™ wrong again with our address standardization city and state lookup APIs.

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Image of a magnifying glass. Tracking & Delivery Information

Get estimated delivery information and track packages until they arrive with Tracking & Delivery Information APIs.

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Image of a calculator. Price Calculator 

Calculate postage rates quickly and easily online for domestic and international shipping.

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Image of a printer with a label. Print Shipping Labels

Print a complete shipping label with a tracking barcode to track packages seamlessly with one of our PC Postage® partners.

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Image of shipping boxes. Package Pickup

Stop going to the Post Office™ to drop off your packages. With the Package Pickup API, you can submit a pickup request and we will pick up your packages for free.

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Image of stack of books. Service Standards & Commitments

Get estimates on delivery and receive guaranteed Commitments with certain services.

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Want to hire a professional integrator?
Browse a list of Ecommerce API service integrators who may be able to help you integrate USPS Web Tools into your software applications or web site.
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