The Alliance of Genome Resources is a portal for data related to six of the major model organisms and human data. The Alliance has been updated to the 3.1 release and contains new features and new data. Key new features include a refined home page and an allele page that includes transgenic alleles and shows variant consequences for transcripts. The Alliance also provides a Java API for access to the data. For a complete list of 3.1 features please see the release notes.