cl-sasl is an SASL client library for Common Lisp, currently supporting the PLAIN, DIGEST-MD5 and ANONYMOUS mechanisms. It is available under a BSD-style licence.
Download
Use asdf-install:
(asdf-install:install :cl-sasl)
Or get the tarball: cl-sasl 0.3.1.tar.gz
Or get it from GitHub:
git clone git://github.com/legoscia/cl-sasl.git
Documentation
See the README file.