The Demographic and Health Surveys (DHS) Program, run by the government agency US AID, hosts a compilation of aggregate indicators on global healthcare. Their data sets contain statistics in fields such as nutrition, HIV, malaria, population, fertility, and mortality rates sourced from women of childbearing age in over 90 countries. The data can be accessed according to national, subnational, and cumulative parameters. The API uses both a query-based interface as well as a RESTful interface, and supports JSON, XML, and CSV output formats. A query builder exists to help developers determine specific URL calls more efficiently. Registered users may obtain an API key in order to receive larger amounts of data.