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USPS Open and Distribute Labels API - Followers

The U.S. Postal Service provides a suite of USPS Web Tools that can be used to validate or find mailing addresses, track and confirm mail delivery, calculate shipping rates, and create domestic or international shipping labels. With this Open/Distribute Priority API, senders can expedite batch shipping by enclosing individual pieces of mail in an approved USPS Priority shipping container to be opened and distributed at a mail processing facility or destination delivery unit.