USPS Address Verification API

Whether you are sending a letter, package or postcard, address verification helps you ensure that it gets delivered to the right address. It helps you avoid fraudulent activities and maintain an up-to-date record of your customers. It also ensures that your mailing list is clean.

The United States Postal Service (USPS) offers a suite of tools for free to validate addresses. There are also third-party companies that provide an API for address verification. However, not all address verification services are created equal. Here are some of the key differences.

The USPS offers address validation tools on its website. Users can type addresses one at a time. The tool produces an output of metadata points and DPV confirmation indicator. When users click on the “” icon, the full output is displayed.

A third-party provider may offer address verification APIs or standalone products. They usually allow address list processing in Excel or CSV formats. However, not all address verification providers use CASS/DPV certified address engines.

Address verification tools are designed to standardize and parse addresses. These tools are useful for reducing keystrokes during the checkout process. They also verify against official USPS records. They are also designed to speed up the mail delivery process.

PostGrid offers address validation services that are easy to use. Its data fields are confidential and in line with data compliance rules. PostGrid’s support team is available at all times to assist users. It also complies with SOC-2 and HIPAA.

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