The Tcl extension module gives access to the Tcl library with
functionality and interface similar to the C functions of Tcl.

In other words, you can
 create Tcl interpreters
 execute Tcl code in an interpreter
 bind in new Tcl procedures
 Manipulate the result field of a Tcl interpreter
 Set and get values of variables in a Tcl interpreter
 Tie perl variables to variables in a Tcl interpreter

Homepage:
https://metacpan.org/dist/Tcl
