n8n
The automation tool to pick when you want agents and integrations on one canvas and the option to run it on your own hardware; self-hosting from GitHub is the escape hatch Zapier and Make do not offer. Cloud pricing is per execution rather than per task, which rewards long workflows, but the monthly figures hide behind a toggle and the Business tier is a self-hosted licence at a very different price point.
Pros
- Self-hosted Community Edition on GitHub under a fair-code licence, with 207k stars
- Agent, model, MCP and RAG nodes alongside 500+ app integrations
- JavaScript or Python at any step, with a canvas that traces agent reasoning
- Execution-based cloud billing with unlimited steps per execution
- Public REST API on all self-hosted editions and on cloud Starter and above
Cons
- Cloud prices were shown only in euros and only as annual-billing figures
- Business tier (€667 a month) is self-hosted only, with cloud availability on a waitlist
- Fair-code licence is not OSI open source, which matters for some corporate policies
- Forum-only support below Enterprise