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Get step-by-step information on how to integrate USPS Web Tools™ into your web site or shipping application by reviewing our user's guides.
Development Guide (Read First)
Step-by-step instructions for all Web Tools
Development Guide (PDF)
Development Guide (HTML)
Distributors Guide
Policies and Procedures for Software Distributors who Distribute Web Tools.
Distributor Guide (PDF)
Distributor Guide (HTML)
Web Tools
The following Web Tools are available for use.
Address Information
Zip Code Lookup (PDF)
Zip Code Lookup (HTML)
Address Verification (PDF)
Address Verification (HTML)
City/State Lookup (PDF)
City/State Lookup (HTML)
Note: Additional permission is required to use Address Information Web Tools.
Delivery Information
Track & Confirm (PDF)
Track & Confirm (HTML)
Domestic Mail Service Standards (PDF)
Domestic Mail Service Standards (HTML)
Shipping Labels
Delivery Confirmation (PDF)
Delivery Confirmation (HTML)
Signature Confirmation (PDF)
Signature Confirmation (HTML)
Priority Mail® Open and Distribute (PDF)
Priority Mail® Open and Distribute (HTML)
Electronic Merchandise Return (PDF)
Electronic Merchandise Return (HTML)
Express Mail (PDF)
Express Mail (HTML)
Customs Forms (PDF)
Customs Forms (HTML)
International (PDF)
International (HTML)
Rate Calculators
Domestic & International Rates (PDF)
Domestic & International Rates (HTML)
Carrier Pickup™
Carrier Pickup (PDF)
Carrier Pickup (HTML)
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Service Providers
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Need assistance with integrating? Use a service provider.
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Technical Support
For technical questions, contact the Internet Customer Care Center at icustomercare@usps.com
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