InTrade is a prediction market that allows users to buy or sell shares in future events. The service creates a market for events ranging from closing prices on exchanges, to the outcomes of elections. The InTrade API has a data retrieval side and a Trading side. With the former the user can check present and historic market data on events. With the latter, the user can check individual data, enter orders, check account balances, and other trading related functions. The API uses REST calls and returns XML data with no wrappers.