1. A method for verifying an attribute asserted online comprising: receiving, at attribute exchange network (AXN) device, a verification request from a relying party (RP) computing device operated by a relying party (RP); identifying, by AXN device, at least one attribute provider (AP) associated with the RP for attribute verification; sending, from the AXN device, a verification request to a computing device operated by the at least one AP; and sending, from the AXN device, a claim received by the at least one AP from a computing device operated by an end user to the computing device operated by the RP via the AXN.