Unified Software's AddressVal API allows users to provide a partial address, and returns one or more addresses from the Royal Mail Postcode Address File. If AddressVal can find an exact match, a single full address will be returned. Otherwise, a number of possible matches will be provided.
This API can be used via either SOAP or REST. Access to the API is dependent on a username and PIN that can only be acquired by contracting a sales representative of Unified Software, so it is possible that the service is restricted to paying customers.
The following is a list of libraries from ProgrammableWeb's Library Directory that matched your search term. Although there many different interpretations of the word "library" among software developers, ProgrammableWeb adheres to a specific definition so as to clearly distinguish libraries from SDKs and frameworks in a way that will facilitate clean search results. In ProgrammableWeb's parlance, the term "library" is strictly used to describe a platform-specific software tool that, when installed, results in the provisioning a specific API. Conversely, SDKs are exclusively for consuming APIs and Frameworks are agnostic to specific APIs. If you think a library, SDK, API, or other asset is missing from our directory, be sure to check our guidelines for making contributions to ProgrammableWeb.