Workflow Automation Tools
AWS Step Functions
Visual workflow service to build distributed applications and automate processes
Camunda
Workflow engine that delivers scalable, on-demand process automation
Potpie
Open source AI agents for your codebase in minutes. Use pre-built agents for Q&A, testing, debugging, and system design, or create your own purpose-built agents. 
n8n
Free and source-available fair-code licensed workflow automation tool. 
Abstra
Python-based workflow engine for custom business processes. 
Trigger.dev
Open-source platform to create workflows from APIs, on a schedule or on demand.  
lil'bots
write and run scripts online utilizing free built-in APIs like OpenAI, Anthropic, Firecrawl and others. Great for building AI agents / internal tooling and sharing with team. Free-tier includes full access to APIs, AI coding assistant and 10,000 execution credits / month