The USPS ZIP Code API is an online tool provided by the United States Postal Service that allows developers to integrate ZIP Code lookup functionality into their applications. This API helps users retrieve ZIP Codes for specific addresses, verify ZIP Code accuracy, and gather other useful postal data like ZIP+4 codes. By integrating the USPS ZIP Code API into their systems, businesses can enhance the accuracy of their mailing lists, ensure that addresses are correctly formatted, and avoid delivery errors or delays. It’s especially useful for e-commerce, logistics, and mailing services that handle a high volume of addresses daily.
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