Steam Store API

Question

I'd love to know if there is a steam API or something, that gets all current steam games and their price? I need to make a Steam Key Trading Bot that sells Steam Game Keys so I need prices of games and actual games to update automatically.

So what I'm asking is if anyone knows where I can get my hands on an automatic updating Steam Games and Pricelist.

I know this exists: http://api.steampowered.com/ISteamApps/GetAppList/v0001

But it dosen't include price..

Answer 1

You can get detailed information about apps by making a request to

http://store.steampowered.com/api/appdetails?appids=<appid>

The JSON response contains a field called price_overview which holds the price- and discount-information.
However, you have to make this request for each app you want to check.

EDIT:
According to this post, the support for multiple appids has been removed and the api is limited to 200 requests per 5 minutes.