US Address Verification API
Address Validation API is CASS certified by USPS and aggregates data from multiple sources. It corrects address elements, standardizes addresses, and fills in missing information. It also identifies errors in the original input and provides the best possible representation of an address. This includes the use of the appropriate native script when an address is recorded in a different one, and the transliteration of special characters and locality names across different writing systems.
The first step in the process is a comparison of the inputted address against the existing records in the database to identify an exact match. Once an exact match is found, the address is standardized to the accepted format. This includes correcting minor errors in casing, abbreviation, spelling and other general typos. It also adds missing elements, such as the city and state/province for U.S. addresses or the postal code for Canadian addresses.
Other important steps include identifying the type of address (residential or business), determining the distance from a zipcode, and recognizing if the address is a valid street or not. It can also distinguish between commercial and residential delivery points in some geographies.
While the official USPS address verification API has its strengths, it also has a few drawbacks that make other third-party solutions more attractive. Its reliability, ease of use and tech support are all questionable compared to its competitors. Melissa Data, for example, has a more straightforward interface and offers much more supplemental address data than the official USPS solution. Loqate is another popular provider, offering widely used international address validation data and fast responses.
SITES WE SUPPORT
Best Certified Mail – Blogger











