Clash of Clans is now open for Developers!

Clash of Clans Developers WebsiteThe Clash of Clans developer website is now live at Access Clan Search, Global and Local Leaderboards, Clan and Player Profiles and Leagues. More to come soon!

The Clash Game API provides near real-time access to game related data. In order to access the API, you need a developer account and a key for your application. Getting Started page can be found here, and Supercell’s Terms of Service here.

Source: Supercell Forum