<ftp://kermit.columbia.edu/kermit/archives/gku100.tar.gz>.
This is a small GPL-licenced version of kermit.
From the "ANNOUNCE" file:
G-Kermit is command-line only (no interactive commands or scripting) and
remote-mode only (no making connections). It has an extremely simple user
interface, and implements a large subset of the Kermit protocol in a small
amount of highly portable code.
apb