USPS Address Verification Service API

 Using a USPS address verification service API is a great way to standardize an address and provide more accurate address information. The United States Postal Service is the only service provider that actually does this free of charge.

The USPS address database contains over 160 million US postal addresses. The database can yield additional data such as the ZIP code, area code, and latitude and longitude. The data is also used to sort mail by carrier case sequence.

The USPS also provides a web interface to validate addresses one at a time. There are limitations. The XML format used to deliver address data is outdated. This limits the ability to implement innovative solutions.

The USPS is also known for having inconsistent uptime. If your USPS account is terminated for any reason, you will not have access to the address verification service API. The API also has very restrictive terms of service.

The USPS also has a comprehensive collection of public address validation APIs. These are a collection of XML-based address lookups and data validation. These can be used in conjunction with USPS shipping services. There are also third-party address verification service providers that can access the USPS address database.

The USPS also maintains a Coding Accuracy Support System, or CASS, which is a certification program designed to ensure that third-party services provide the most accurate address validation. The program is available for the US and PR regions, but it is not enabled by default. It is not as simple as it sounds. Third-party service providers must adhere to strict legal agreements.

Using a USPS address verification service API can improve your customer experience. It can help standardize addresses and correct typographical errors. In addition, the API can also provide additional information such as legislative data and daylight savings information. It can also be used to presort carrier route codes, resulting in postage discounts.

While there are many USPS address verification service APIs, the Melissa API is the easiest to use and offers the most supplemental information. It also offers tech support.



USPS addresses are considered valid if they include a valid city, state, and five-digit zip code. However, many third-party companies combine the USPS data with supplemental information, making it even easier to use the USPS address database. This explains why many address validation services use a combination of the USPS and other third-party data to make the most of the USPS address database.

The USPS address verification service API can be used to standardize an address and correct typographical errors. However, if you are looking for a comprehensive address validation service, you should go with a third-party provider. Using an address validation service can reduce the likelihood of customer frustration and improve delivery success. The USPS address verification service API is the best tool for simple address validation requirements. The USPS address database is one of the largest and most comprehensive databases in the world. Using the USPS address verification service API is an easy way to improve your customer experience.

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