The service maintains and automatically updates a database of hyperlinks across major biology and life sciences databases. It defines stable identifiers linking to data IDs in major databases for gene and protein information. Its update function returns up-to-date URLs for accessing corresponding data across multiple databases.
API methods support submission of an identifier in a particular input format and the desired output format. Methods return the correct identifier in the requested output system. Methods also allow retrieval of a listing of identifiers logged in the system.