There are three ways to interact with Fluid Construction Grammar: as a Python package, as a Lisp library, or using the stand-alone FCG Editor environment.

Python: PyFCG

Fluid Construction Grammar is distributed for Python as a pip-installable Python package, called PyFCG.

Common Lisp: Babel

Fluid Construction Grammar is distributed for Common Lisp as part of the Babel system.

FCG Editor

The FCG Editor is a stand-alone integrated development environment for Fluid Construction Grammar.