Hi Reed, It sure is possible but every text message gateway vendor probably has its own custom API so you need to create your own authenticator unless someone else did it for the same vendor. It sure is possible and if you get to know the Authentication SPI of Keycloak, its most likely done within two weeks (includes testing and playing around with the code). We are doing the very same thing in about 2 weeks. On 8 Feb 2017 7:50 pm, Reed Lewis <RLewis(a)carbonite.com&gt; wrote: We wish to use two factor Authentication with Keycloak, but not the built in authenticator, but instead a more user friendly of sending a text message to the user which the user will type into a box on the screen to successfully log in. Would that be something that could be done with Keycloak easily? I would guess there would need to be a plug in to do this, but want to make sure it would be possible first. Reed _______________________________________________ keycloak-user mailing list keycloak-user(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/keycloak-user