Does Redash have a REST API for managing
Is the API documented?
Yes it does have a rest API. It is not feature complete, and not documented other than the actual code.
(I am developing against it now, and that development is how I gained the above knowledge)
Same here. We understood the API reading the code. In our case we use it because we developed a small tool so we can have the queries controlled on git and this way is easy deploy new instances having test and prod environments. It would be great if this API was documented.