Jeeves is a private, single-user personal assistant. It runs on its owner's own server and is used through a private Telegram bot that answers only its owner. It is not offered to the public and has no other users.
With the owner's permission, Jeeves reads the owner's own Gmail messages (read-only access) so it can answer questions such as "did the utility bill arrive" or "what did I order last week". It cannot send, delete or modify email.