Resistbot is a service that people in the United States can use to compose and send letters to elected officials from the messaging apps on their mobile phones, with the goal being that the task can be completed in "under two minutes". It identifies a user's federal, state, and city elected officials, then provides an electronic service to deliver to those officials, as well as to local newspapers, and to publish online. As the platform has developed, Resistbot has added functionality such as confirming voter registrations, locating town halls, finding volunteer opportunities, and locating polling places. Resistbot has been funded by over 24,000 small-dollar donations as of September 12, 2017, and is built and maintained by volunteers.