SWI-Prolog offers a comprehensive free Prolog environment.

Installation and Setup​

Once SWI-Prolog has been installed, install lanchain-prolog using pip:

pip install langchain-prolog

Tools​

ThePrologTool class allows the generation of langchain tools that use Prolog rules to generate answers.

from langchain_prologimport PrologConfig, PrologTool

See ausage example.

See the same guide for usage examples ofPrologRunnable, which allows the generationof LangChain runnables that use Prolog rules to generate answers.