The Open New York Daily Traffic on Metropolitan Transportation Authority (MTA) Bridges and Tunnels API is an open service of the State of New York's data.ny.gov open data initiative. The API provides access to a catalogue of data on the vehicles that pass through all 9 bridges operated by the MTA each day. Cars, buses, trucks and motorcycles are accounted for, and the dataset includes field types that such as date, bridge name, number of vehicles that paid in cash per bridge, and total vehicles per bridge. The dataset is updated on a weekly basis, and can be accessed through HTTP communication with available response types in JSON, XML, and CSV. The documentation features a live testing interface to run example requests. All requests must posses an app token in order to be authenticated.