An information processing system includes a client device and a server device. The client device includes a transmitter configured to transmit, to the server device, a request to acquire information for connecting to an external device that provides an external service. The server device includes a storage configured to store attributes of accounts of the external service, and the information for connecting to the external device by using the accounts; a receiver configured to receive the acquisition request from the client device; an identifier configured to identify candidate accounts to be used when the client device receives the external service, the candidate accounts being identified based on information elements and the attributes, the information elements being included in the acquisition request and identifying the accounts; and a transmitter configured to transmit, to the client device, the information for connecting to the external device by using the identified candidate accounts.