Can I use crude oil live price API in unity game so that It regularly updates the price of oil in game ?
You’ll need to contact whoever owns the API data you’re using, since it’s their server your game will access. Some APIs limit how many times it can be accessed per day, and if you have it inside a game you’re potentially adding more strain on their servers than they’d want depending on how many players you get. They may also have restrictions on where/how you can use the data.