From the readme I can't tell what powers the cited REST API functionality. From setup.py > mercury/requirements.txt it's DRF: Django REST Framework. https://github.com/mljar/mercury/blob/main/mercury/requireme...

E.g. BentoML is built on FastAPI which is async (sanic) and built by the DRF people, but FastAPI doesn't yet have the plethora of packages with tests/ supported by the Django community and DSF Django Software Foundation.