Key features [ edit ] No personal information is sent to Yandex . The MT system will be accessed via a publicly available API using a key. Article content (freely licensed) is sent to Yandex servers from Wikimedia Foundation servers. No direct communication is happening between the user and external services and no personal information (IP, username) is sent to Yandex servers. The client contacting Yandex servers is open source and you can check it here .