Feersum Engine is a highly configurable workflow engine tailored for chatbots and conversational interfaces. It consists of the relevant editor and a reporting engine written in Python on top of Django, and using Memcached, Redis and PostgreSQL for Cacheing, transient and permanent data storage respectively.
Feersum Engine provides a Python-lite sandbox where additional logic can be implemented. The sandbox can be extended by registering regular Python modules. It provides JSON-REST APIs for communication and can call out to other JSON-REST APIs.
If you're interested in learning more, check out the documentation below.