Vélib is Paris’ self-service bicycles network. Bicycles are available at Vélib stations and must be brought back to a station. Reduced subscriptions exist under some conditions. Find out more on Vélib’s website.
Some companies such as Mobike or Ofo also offer self-service bicycles. After downloading their app, you will be able to track the closest bike. Once you find the bike, you can just unlock it with your phone. You will then have to pay a fee depending on how long you used the bike.