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Address Information APIs


Verify your customer’s address before you ship with USPS Web Tools® Address Information APIs.

Register and get access to Web Tools APIs ›

Once you’re registered to use Web Tools APIs, you’ll need to request permission to access Address Information APIs.

Submit a request now ›

Browse full list of USPS Web Tools® ›

open inline section:Address Standardization/Verification
open inline section:ZIP Code™ Lookup
open inline section:City/State Lookup
open inline section:Hold For Pickup Facility Information