When I wanted to get the median price of an item on the steam market I came across this answer. It gets the lowest and median price of an item. The one thing I had trouble understanding which currency number corresponds with what currency and if so, which industry standard is used here.
This is an example URL:
https://steamcommunity.com/market/priceoverview/?appid=730¤cy=3&market_hash_name=Tec-9%20%7C%20VariCamo%20(Minimal%20Wear)
In the documentation it says it is ISO 4217
:
An optional ISO 4217 currency code. If specified, only prices for this currency need to be
But that's clearly not the case.