Zagster Inc. was a provider of bike-sharing systems and micromobility solutions for cities, universities, and businesses. Founded in 2007 and based in Cambridge, Massachusetts, Zagster specialized in deploying and managing easily accessible and user-friendly transportation options. It facilitated short-term bike rentals through a mobile app, enabling users to locate, unlock, and ride bikes seamlessly. Zagster's solutions were tailored to promote sustainable and efficient urban transportation. However, as of 2020, Zagster ceased operations as a bike-sharing service provider.