$(eval const api = $(urlfetch json https://recommendation.api.useinsider.com/10005127/tr_TR/user/0?details=true&size=20¤cy=TRY&filter=(%5Boriginal_price.TRY%5D%5B%3C%5D%5B20000%5D)*(%5Bcategory%5D%5B~%5D%5Bknight-online%5D)*(%5Bname%5D%5B~%5D%5BKnight%20Online%20Zero%20Gold%20Bar%20GB%5D)&shuffle=true); api.data[0].price.TRY)
The important part here is api.data[0].price.TRY. You store the data into the api variable, so in order to extract some of it, you need to refer to it, hence why I start with api, then you enter the data array, and because it’s an array of length of 1, and because we’re interested in the data inside of the first cell, we get it with data[0], and then we can finally access the price.TRY value.