In addition to the individual representations of the high-quality coexpression data in COXPRESdb, bulk download functions (http://coxpresdb.jp/download.shtml), RDF by SPARQL (http://coxpresdb.jp/sparql) and API returning the JSON format (see http://coxpresdb.jp/help/API.shtml), are available to easily combine with other large-scale data.