LibCVS Perl simplifies the job of writing tools around CVS by providing Perl libraries that programmers can access directly in their code. Its current focus is libraries that use the cvsclient protocol to talk to a CVS server and are targetted at the development of client applications. Libraries that understand the RCS file format and provide fast server-side access are a future possibility.
Monotone::AutomateStdio is a Perl library module for accessing Monotone's automate stdio interface. Monotone is a distributed, change-set based SCM system. It has a mode where commands can be sent to it via STDIN and output read from it via STDOUT. Monontone::AutomateStdio makes use of this facility to provide the Perl programmer with a programmatic interface to Monotone.