Prefect

Beehive

6193 stars

Beehive is an open source event and agent system, which allows you to create your own agents that perform automated tasks triggered by events and filters. It is modular, flexible and really easy to extend for anyone. It has modules to interface with, talk to, or retrieve information from Twitter, Tumblr, Email, IRC, Jabber, RSS, Jenkins, Hue etc.

Flogo

2366 stars

Project Flogo is an open source, resource efficient, Go-based ecosystem for building event-driven apps. It is designed to abstract the event processing paradigm from event consumption enabling devs to build once, consume from anywhere and process using any of the supported actions.

Node-RED

18473 stars

Node-RED is an open-source flow-based development tool for visual programming developed originally by IBM for wiring together hardware devices, APIs and online services as part of the Internet of Things. Node-RED provides a web browser-based flow editor, which can be used to create JavaScript functions.