Hmm :thinking_face: you may already be implying this knowledge, but just so we’re on the same page [because it’s not clear from the question], re-frame is a frontend library and frontend authorization alone is not enough if your concern is secure access control 🙅 You’ll also need to implement authorization on the backend 🛂 If your intent is just to facilitate some of the frontend bits around authorization, then I’m not sure of a re-frame-specific library but you could look into something like https://casbin.org/ which has https://github.com/casbin/casbin.js.