The Gage Statistic (GageStats) Services were developed to provide gage characteristics and streamflow statistics to support the StreamStats application via RESTful principles. The StreamStats application uses GageStats Services to display the gages and related gage pages. These services provide U.S. Geological Survey developed and published gage characteristics such as drainage area or mean basin elevation and gage statistics such as percent duration statistics. GageStats has gages in every State as well as the Commonwealth of Puerto Rico. GageStats Services documentation can be accessed at https://streamstats.usgs.gov/docs/gagestatsservices/.