muacrypt helps mail user agents to process incoming and outgoing mails and keep Autocrypt state according to the Autocrypt Level 1 specification. muacrypt manages accounts which maintain Autocrypt related state. Each account processes incoming and outgoing mail, parsing and adding Autocrypt headers as appropriate. Functionality is exposed through a command line tool muacrypt and a Python api import muacrypt. This README is intended to help contributors to get setup with running tests and using the command line. The online docs at https://muacrypt.readthedocs.io contain more documentation about overall goals of the project.