Complete Shipping™ APIs

Easily integrate USPS services into your platform with Complete™ Shipping APIs from Pitney Bowes.

Consumers don’t care that shipping is complex, but they do care about receiving their shipments on time and as promised. The Pitney Bowes Complete Shipping™ APIs help you solve complex shipping issues simply and efficiently. Now you can offer USPS shipping through your current operational flows. Lightweight, easy-to-use and featuring a seamless integration process, our Shipping APIs don’t require extensive time or investment.
Simply sign up, get your keys and drive.

Subscriber login

If you are a developer and already a subscriber?  Sign in here.

Register for free

If you are a developer, you can gain access to our sandbox to configure our APIs to your application.

Shipping Merchant Portal

If you are a current merchant and looking to access the portal, sign in here.

Product Documentation

Access FAQ's, trouble shooting, release notes and more.





Full-featured shipping

Prepare and print labels for USPS domestic and international shipments. Create daily shipping manifests to speed carrier processing. Manage refunds and cancellations.

Verify USPS addresses

Ensure that packages reach their intended destinations with automatic address verification. The API can search the USPS’s database of known mailing addresses. If it can’t recognize the address entered, the API suggests an alternative if it finds a close match.


Shop for the best rates

See which shipping services are available for a specific package. You’ll find out exactly how much they’ll cost and how long delivery will take, all in real time.

Improve your cash flow

Select from flexible payment options to free up funds so you can invest in your core business operations.

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