GPTs Code Interpreter cannot make HTTP requests to external sites. Therefore, I have developed a proxy server that can be registered in GPTs Actions.
Request the URL in the url
parameter using GET.
https://url-proxy-dusky.vercel.app/?url=https://xxxxxxxx/xx.json
You can use an encoding
parameter
https://url-proxy-dusky.vercel.app/?url=https://xxxxxxxx/xx.json?encoding=shift-jis