These instructions are for installing an OpenFisca country package in a local environment. The OpenFisca-Country-Template package is used as an example here and should be substituted for the specific country package relevant to the use case.
OpenFisca runs with Python. If that language is not available in your environment, check the Installation requirements section.
To run a local OpenFisca-Country-Template web API:
Install the OpenFisca-Country-Template package in your local environment.
Serve the web API in your environment.