The Falcon Web Framework Falcon is a minimalist ASGI/WSGI framework for building mission-critical REST APIs and microservices, with a focus on reliability, correctness, and performance at scale. When it comes to building HTTP APIs, other frameworks weigh you down with tons of dependencies and unnecessary abstractions. Falcon cuts to the chase with a clean design that embraces HTTP and the REST architectural style. Falcon apps work with any WSGI or ASGI server, and run like a champ under CPython 3.5+ and PyPy 3.5+ (3.6+ required for ASGI).