US Patent 11532303 Agent apparatus, agent system, and server device

An agent device includes an acquirer configured to acquire an utterance of a user of a first vehicle, and a first agent controller configured to perform processing for providing a service including causing an output device to output a response of voice in response to an utterance of the user of the first vehicle acquired by the acquirer. When there is a difference between a service which is utilized in the first vehicle and is available from one or more agent controllers including at least the first agent controller and a service which is utilized in a second vehicle and is available from one or more agent controllers, the first agent controller provides information on the difference.