Can I query my / my friends games on Xbox Live?

Question

Is there any way for me to query via C# on a web or desktop application all my games on Xbox Live ?

Answer 1

There is an unofficial Xbox Live API here

You can view details such as:

• Online status
• Avatars
• Gamerscore
• Bio
• Recent games played

Unfortunately, it seems you can't view all games currently, but keep an eye out on the site as it seems to be under active development (as of Dec 2011)