I have grok AI api key and Python code, Pn Python Code I want to make my own API using node js. Here is my Python code "" Created all the python file, node file, package json and vercel json. In this python code have content, so here gonna endpoint parameter in api user will enter Prompt content in my api as endpoint after in Python code get response get in my api as json format. 

Remember my words when we request on this api then we get response json so you must also show that json in my api also, and use chat insted prompt for better. Anyone user directly access my api and use it and get easily json response. Don't need any type curl amd etc. in last show me my api example url

Please create two file python and node js both, first send request in Python as get reply response show in my node js api as response that python.

Give me complete updated chat.js and grok_clinet.py need both with full updated. And complete final code give me. Don't need any .env give me all the npm install, and bash command for all the node and python installation give me