Is there a dynamicly allocated Rest API?

I am looking for a dynamicly allocated rest framework, by which I mean I can allocate Rest API calls, models, relations, etc while the system is running, without having to write additional backend code.
Best case would be where I can just create models, set permissions for users to read and write entries and edit the models directly int the website, similarly to the django admin interface, just with the additional feature of creating new models and api calls.
Or just a system that lets me change a config files to create new models that is reloaded on the fly, so I can create a tool for that. Is there such a system, in the best case available for django?