Steam API for C#?

[Speederdriver]

Hello,
I've been looking for a long time on the web for a Steam API or any other thing that would allow my C# application to keep connect a steam account. And if possible, an API that allows user to buy stuff on steam with steam wallet (I doubt it exists but it worths nothing to ask, huh?).

Thanks!

[atom0s]

Some API wrapper links:
https://developer.valvesoftware.com/wiki/Steam_Web_API
https://******.com/Overv/SteamWebAPI
NuGet Gallery | Fluent Steam Web API for C# 1.0.9

As for accessing the Steam Wallet don't think you can from the web API. You can try using the open-steamworks, but I'm not sure it still works anymore:
VoiDeD / Open Steamworks — Bitbucket