GSA Auctions is a site that auctions out Federal personal property assets such as equipment, furniture, vehicles, heavy machinery, helicopters, airplanes, and other vessels. These online listings allow access from any potential buyer across the country. The API can be used to programmatically retrieve all corresponding data fields for each listing. Developers can create GET HTTP requests to the RESTful API in order to receive responses in XML and JSON formats. The rate limit for the GSA Auction APi is 5,000 calls per day, and 5 calls per 5 seconds. As GSA Auctions API is government operated, all content and software is made open source by default.