USPS
Address Matching System Application Programming Interface (AMS API) – USPS Definition
Software used to develop address matching software. AMS API gives access to USPS matching logic that can be used to verify the accuracy of ZIP+4 returns. AMS API may be integrated within a manufacturers' product and redistributed by the manufacturer.
Address Matching System Application Programming Interface (AMS API)
Software used to develop address matching software. AMS API gives access to USPS matching logic that can be used to verify the accuracy of ZIP+4 returns. AMS API may be integrated within a manufacturers’ product and redistributed by the manufacturer.