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Technical Documentation

 

Use our technical documents to get step-by-step information on how to integrate USPS Web Tools® into a web site or shipping application. For technical questions, contact us at uspstechnicalsupport@mailps.custhelp.com.

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Web Tools Release NotesDocs
Current Release Notes
  • Transition Guide: RateV3 to RateV4
  • PMEI Guarantee to Canada Release Notes
  • March 2014
  • February 2014

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Past Release Notes
  • January 2014
  • July 2013
  • May 2013

PDF | RTF
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Developer Guides & InstructionsDocs
Step-by-Step Instructions for All USPS Web Tools PDF | HTM
Policies and Procedures for Software Distributors PDF | HTM

API User’s GuidesDocs
Address APIs
• Address Validation/Standardization
• City & State Lookup
• Zip Code™ Lookup
• Hold For Pickup Facility Information
PDF | HTM
Tracking & Delivery Information APIs
• Track & Confirm V2
• Track & Confirm Email
• Proof of Delivery
• Track & Confirm Restore Archived
• Return Recipt Electronic
PDF | HTM
Price Calculator APIs
• Domestic Rates V4
• International Rates V2
PDF | HTM 


Shipping Labels APIs - Domestic
• Priority Mail Express™ Labels 
• Hold For Pickup Labels 
• Merchandise Return Service Labels 
• Open and Distribute™ Labels
• Signature Confirmation™- Domestic Shipping Labels
• USPS Tracking™- Domestic Shipping Labels 

PDF | HTM
PDF | HTM
PDF | HTM
PDF | HTM
PDF | HTM

PDF | HTM
Shipping Labels APIs - International
• Priority Mail Express International™
• Priority Mail International®
• First-Class Mail International®
PDF | HTM
Shipping Labels APIs - Custom Forms
• Custom Form CN22 V2
• Custom Form CP72 V3
PDF | HTM
Package Pickup APIs PDF | HTM 
Service Standards & Commitments APIs 
• Domestic Mail Service Standards
• Service Delivery Calculator

PDF | HTM
PDF | HTM

 

Coming Soon: Web Tools 2.0 will introduce Authentication, Manifest Upload, and PTS Extract Download services. Please contact WebTools@usps.gov for more information.

  • Authentication API RTF
  • Manifest Upload API RTF

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