There is also https://apiblueprint.org/ https://apiblueprint.org/ that I really enjoyed working with even by hand writing the underlying specs and using their p

There is also https://apiblueprint.org/ https://apiblueprint.org/ that I really enjoyed working with even by hand writing the underlying specs and using their proposed docs generators. But it was almost 2 years ago so not sure what is the state of it now.