A similar tool for this would be VCR (originally built in Ruby, but ported to other languages since): https://vcrpy.readthedocs.io/en/latest/. This injects itself into the request pipeline, records the result in a local file which can then also be replayed later in tests. It's a quite nice approach when you want to write tests (or just explore) a highly complicated HTTP API without actually hitting it all the time.