Two excellent ideas...
1. The signed id_token is included in the `get_tokens_by_code` API call, and this could be passed along with the public key of the OpenID Provider. In version 2.4 of the Gluu Server the id_token includes the user claims. In version 3.0 of the Gluu Server, the user claims will be included in the id_token only if you use set the "legacy_mode" JSON property. There is no way to get the signed JWT response for the `get_user_info` API call. I created an enhancement for this:
[https://github.com/GluuFederation/oxd/issues/65](https://github.com/GluuFederation/oxd/issues/65)
2. Good idea... I added [https://github.com/GluuFederation/oxd/issues/64](https://github.com/GluuFederation/oxd/issues/64)