Certify Zip Code Field For Free

The Address/Standardization ?Verify? API, which corrects errors in street addresses, including abbreviations and missing information, and supplies ZIP Codes and ZIP Codes + 4. The Verify API supports up to five lookups per transaction. By eliminating address errors, you will improve overall package delivery service.

After you have completed your Change-of-Address online, an Email confirmation is automatically sent. You will receive a Confirmation Notification Letter and a Welcome Kit at your new address. This letter allows you to verify the Change-of-Address information on file with your Post Office.

A United States postal code, for example, might be either five digits or five digits followed a hyphen (dash) and another four digits (12345-1234). If you are validating US postal codes, allow for both conditions.

Customers who have registered for a USPS Web Tools® account and agreed to the terms and conditions of use can access USPS APIs for free.

ZIP Code? validation. Sending mail to the wrong person?or sending it to an undeliverable address?can cost a lot of time and money. You have to resend the mail and pay for new postage. ZIP Code? verification helps get rid of costly mistakes by making sure postal addresses are correct before you head to the post office.

USPS API Solutions: How it works An effective address API does the following: Cleanse, correct, and standardize your address records in real-time. Verifies address at the point of collection so that no inaccurate data enters your database. Integrates easily into your technical environment.

USPS Address Validation/Standardization API - Verifies that addresses are real, mailable, and returns them in the USPS standardized format. USPS ZIP Code Lookup API - Tells you the ZIP+4 Code for addresses you submit. USPS City/State Lookup API - Provides the city and state for a particular ZIP Code.