To provide an information processing apparatus that verifies whether a request from a web service is based on an agreement of a valid user so as to acquire personal information from a personal information management server only in response to a request from a web service based on an agreement of a valid user.

An information processing apparatus 100 includes: a digital signature verification function part 120 for verifying validity of information transmitted from a web service apparatus; and an identification information use function part 130 for extracting user identification information and web service identification information from the information of which validity is verified, and acquiring addresses of a personal information management server and a web service apparatus corresponding to the extracted identification information from an address storage part 140. The information processing apparatus 100 is used so that only web service apparatuses of which validity is verified are capable of accessing # the personal information management server.