USPS Web Tools

EasyPost is a flexible, modern API that aggregates shipping APIs into one. Sign up and start shipping and tracking with UPS, USPS, FedEx, and more. Thousands of developers already have.

USPS offers public APIs known as the USPS Web Tools, or USPS Web Tools API, for some key services. These APIs just offer access to Tracking, Address Verification, and Rates.

One crucial area that's lacking from the USPS Web Tools is the ability to purchase postage or shipping. All this has been delegated to USPS partners such as EasyPost. EasyPost is a Certified Web Tools Integrator and offers all USPS Web Tools functionality and more.

With the EasyPost API, you get the best of USPS Web Tools and the best of purchasing capabilities (postage, refunds, scan forms, batches, etc.) all in one RESTful JSON API with client libraries in PHP, Java, Ruby, Node, .Net, Perl, Python, and more.

EasyPost offers the following USPS API services:

Address Information (Address Verification)
Tracking & Delivery Information
Price Calculator
Print Shipping Labels
Package Pickup
Postage / Label Purchasing

The EasyPost API offers the following USPS service levels:

First
Priority
Express
GroundAdvantage
LibraryMail
MediaMail
FirstClassMailInternational
FirstClassPackageInternational
PriorityMailInternational
ExpressMailInternational

For access to all of the USPS API functionality through EasyPost, just sign up or click the button below and we'll be in touch shortly.

Spend less on shipping today

EasyPost's multi-carrier Shipping API includes:

USPS Merchant Discount Pricing on ALL accounts
Instant access to USPS, UPS, FedEx, DHL, and 100+ carriers
Tracking, rating, address verification, and insurance features
FREE EasyPost testing with no upfront costs
Client libraries for .NET, Java, Ruby, Python, Node, PHP, and Go