NationStates is a free nation simulation game inspired by the novel Jennifer Government by Max Barry. Players create and manage their own countries. The NationStates API provides a developer interface for automate game world data collection. Available data includes information on nations, regions, and the game world. Developers may make a standard call in which the most commonly sought information is returned, or request specific data types. The API may also be used to send in-game telegrams to other players.