n8n
A source-available, node-based workflow automation tool that can be self-hosted and supports custom code and AI agent workflows.
Analogy
Like a visual programming canvas for automations that you can run on your own server.
Why it matters
n8n offers self-hosting, lower cost at scale, and strong AI tooling, making it a powerful choice for AI-automation builds.
In practice
A self-hosted n8n workflow that runs an AI agent to triage inbound emails.