There are bus & train lines available in Washington, D.C. which are provided by WMATA (Washington Metropolitan Area Transit Authority) & D.C. Circulator.
Single ticket costs $2.54 while 30-day pass costs $145.00.
City public transportation providers including their names, logotypes, modes of transport (bus, tram, metro, train, funicular, ferry etc.), ticket prices and types as well as website and mobile app links (if any).
Public transportation category is available in production API version 3.