Aspects of the subject matter described herein relate to identity technology. In aspects, a user device requests access to a service provided by a relying party. In response, the relying party indicates required claims and may also indicate claims providers from which the required claims may be obtained. The user device may obtain the required claims from different claims providers, and send the claims obtained from the different claims providers in one or more messages to the relying party. The relying party may verify the claims or employ a validating service to verify that the claims are valid prior to providing access to the requested service.