How to Use the USPS Address Verification API

To use the address verification API, you'll need to set up a few parameters. First, you need a License Key. Next, you need to provide address information, including Line 1, Locality, Administrative Area, Postal Code, and Country. Then, choose Options, which should be in OptionName: setting format. This is where you can supply additional information. If you'd like to verify the address of a veteran, you'll need to provide additional information.

Address validation API services are essential for e-commerce companies, as they need to deliver products to numerous addresses daily. Consequently, sending mailers to the wrong address costs money and can reduce return rates. Address verification API services are highly recommended for e-commerce companies to avoid such a situation. The Experian address standardization API provides an easy, customizable way to implement address verification without disrupting your existing workflow. By using address validation API services, you'll never have to worry about inadvertently sending the wrong mailers to customers.

There are numerous address validation APIs available. The USPS has a few different options, including Loqate and Melissa Data. If you're comfortable with API documentation, you can opt for these two options. These services offer a wide range of capabilities, but you should be aware that they differ in terms of reliability, uptime, and support. The USPS may terminate licenses if you violate these conditions. However, you can check out these options to decide which one suits your needs best.