The Stamps.com Developer Program provides the technical resources and support you need to add USPS mailing and shipping capabilities to your software in any platform or environment.
Get real-time rates for all USPS products and services.
Verify domestic, APO/FPO/DPO, PO Box addresses. Advanced features such as Residential Delivery Indicator. Address correction and suggestion functionality also available.
Full range of USPS PC Postage services, package types, and add-ons available.
Receive up to 40% off compared to USPS insurance rates. Plus get claims turned around in less than a week.
Request a USPS pickup for your packages.
Receive 360-degree tracking data for your shipments.
Seamlessly integrate a suite of account management tools built by Stamps.com.
Generate detailed activity reports through the Stamps.com software or API.
Industry standard web service technology similar to eBay, Amazon and most other API providers.
.Net, PHP, Perl and most other popular web platforms support SOAP.
Scaffold, develop and test in a separate environment that is nearly identical to production — for free.
Detailed technical documentation and guides walk you through how to build an application integrated with PC Postage.
Utilize industry standard web service technology similar to eBay, Amazon and most other API providers.
Contact a friendly, knowledgeable Stamps.com IT Specialist by email or phone for support.
Utilize a scalable platform that automatically updates with new USPS and Stamps.com products and services.
If you stay with Stamps.com past the trial period, you will be charged $17.99 a month plus applicable taxes, if any, for the Stamps.com service, including the first month. You can cancel your services at any time.
As a new Stamps.com customer you will receive a FREE 5 lb. Digital Scale. The scale is a $50 value and is yours to keep with no additional obligation. Just pay for shipping and handling (typically $9.99 or less).
As a new Stamps.com customer you will receive $5 in free postage that you can use during your trial period. After you complete your trial period, you are eligible for an additional $20 in postage. We will give you two $10 postage coupons. You can redeem one coupon per month once you complete your trial.
To help you get started we will ship you a free Supplies Kit that includes free postage labels to use with the service (a $5 value). However, you don't need to wait for the Supplies Kit to arrive in order to print postage. You can immediately take advantage of features such as printing shipping labels on plain paper or printing postage directly on envelopes!