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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.
Getting Started:
- Determine if using USPS Web Tools is the right choice for your business. If not, consider using the USPS Shipping Assistant® desktop application or the Click-N-Ship® web-based label tool.
- If you decide to use USPS Web Tools, determine if you’ll do the programming yourself or select a service provider to integrate the tools for you.
- If you’re doing the programming yourself, download our step-by-step technical guides.
- Complete a simple registration process to begin using USPS Web Tools.
Types of USPS Web Tools Available:
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Address Information APIs
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Make sure your mailing addresses are correct. Additional permission is required to use these Web Tools.
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Delivery Information APIs
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Check estimated delivery times prior to mailing or check the delivery status of your package after mailing.
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Rate Calculators APIs
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Determine postage rates based on weight, class of mail, and origin/destination information.
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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.
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Carrier Pickup™ APIs
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Submit a request online to have your carrier pick up your packages when your carrier arrives with your regular mail delivery.
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Technical Guides
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Download instructional guides to learn more.
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Service Providers
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Need assistance with integrating? Use a service provider.
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Access USPS Web Tools
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Register now to begin using the USPS Web Tools.
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USPS Web Tools Alternative
Get access to all Web Tools features without additional programming by using our desktop computer program USPS Shipping Assistant®.
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