Hi Bruno, yes it exists. You can use our model API to add new users and/or roles. I can see that this is already used inside your UpsSecurityApplication https://github.com/keycloak/keycloak/blob/master/project-integrations/aer..., which is doing some modification to master realm with usage of this model API. Note that you always need to wrap all calls to model API into KeycloakTransaction as seen in this example. For more reference on how to retrieve realm, and add users or roles, see for example unit test here https://github.com/keycloak/keycloak/blob/master/model/tests/src/test/jav... (for adding user) and here https://github.com/keycloak/keycloak/blob/master/model/tests/src/test/jav... for adding role. Marek On 17.6.2014 05:34, Bruno Oliveira wrote: