MagnaX Softwarecoyote is a restricted (reduced functionality) ACME client. It implements portion of the ACME client spec to allow for account registration and certificate issuance. Other aspects of the spec, such as certificate revocation, have not been implemented to simplify the application.
The tool is inspired by the acme-tiny script, which aims to be a tiny, auditable program to issue certificates. Like acme-tiny, this tool does not need to bind to port 80, restart your webserver, or change your webserver config. It simply needs to be able to read the certificate request (CSR) and write to a specific folder in the webroot and to the file that will hold the generated certificate.
Once compiled, this program has no external dependency. This makes it easy to install on a variety of platforms. It is also very small, which makes it easy to read and audit prior to usage (recommended).