Grab data from site [closed]

I'm making something where it will use an api and it just can't find anything online im quick new to this so any help would be good!

@echo off
title Altering API Gen
:START
cls
echo.
echo ...............................................
echo             What is your API Key?
echo ...............................................
echo.
SET /P APIKey=Type your api key then press ENTER:
cls
echo.
echo ...............................................
echo            How much should we gen?
echo ...............................................
echo.
SET /P NUM=Type a number then press ENTER:

(It will go to a spesific site https://api.thealtening.com/v2/generate?key=api-%APIKey%&info=true  and it will print the raw text showned on the site and use the %NUM% to see how much times to do use with a cooldown of 500ms)