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  • Writer's pictureKaectm swonp

Address Standardization API Free For Developers

USPS is a global postal services provider that collects and validates address data. The address information is provided for free on the USPS website. The USPS Web Interface allows users to submit a single address and get an automated response if the address is invalid. Currently, this service is only available for a single address; it is not possible to validate a large number of addresses at once. However, the USPS is working on a new address validation API that will allow businesses to validate and standardize addresses.



This API allows developers to standardize addresses by using the USPS database. USPS addresses are accepted with minor errors and typos, as long as the addresses meet the basic requirements. Otherwise, an address is rejected by USPS and considered invalid. Addresses are then standardized with additional information such as a standard abbreviation for Suite number and the correct ZIP code. This data allows developers to create custom applications to address specific customer needs and improve the quality of their customers' addresses.


Address standardization is a necessity for any business or organization that uses address data. When addresses are not in standard format, they become unreliable and inconvenient to use. Human error is also a big factor when it comes to addresses. People make spelling and formatting mistakes when entering their data, which can damage the integrity of a data set. Fortunately, there are a number of address standardization APIs available for developers.


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