Versions and retirement: how long each API version is supported, and how we announce retirements, is in our API versions and retirement policy. What's new lists each release.
The Texas A&M University deterministic address parsing and normalization engine can be used from desktop and/or web applications via the Deterministic Address Parsing and Normalization Web Service interfaces listed below. The only required information is the API key, which is available in your account profile page. You may want to read the technical details and the known bugs.
https://gsvcs-stage.geoservices.tamu.edu/Services/AddressNormalization/WebService/DeterministicNormalizationService_V03_01.asmx
https://gsvcs-stage.geoservices.tamu.edu/Services/AddressNormalization/WebService/DeterministicNormalizationWebServiceHttp_V03_01.aspx?