The Python scripts inside /cr combines columns inside several csv files to generate a collection of JSON files to be used for Clash Royale application development.
We try to update these files every time a client / balance update is released. The JSON files should be current.
However, you should note that /json/cards_stats.json is not complete as it would require some additional logic to flush it out. You are welcome to look into the source /cr folder and see if you can complete the logic and send us a pull request.
You will need to clone the repo with the submodules downloaded.
git clone --recursive https://github.com/cr-api/cr-api-data
virtualenv --python=$(which python3) cr-api-data
pip install -r requirements.txt
Run ./run.py