The cloud computing is the new feature in some commercial input methods. They can search and get words from cloud server. Cloud computing can greatly improve the accuracy of the input method. Many cloud input methods provide open APIs to the third part applications, Such as baidupinyin and google cloud input. And Fcitx have finished this work, but it was just a extension on fcitx (fcitx-cloudpinyin). But it just work for Chinese inputing. The Google Input Tools (google cloud input) provide many other language input method. We can quickly develop input methods with cloud input APIs in Linux.