n8n is an open-source workflow automation platform with first-class AI agent nodes. It can host the marketing agent's decision loop: read the warehouse, call an LLM to pick the next action, publish creative, and turn ads on or off on a schedule. Self-hostable (fair-code) or via n8n Cloud, with a permission model for human-in-the-loop approval.
What n8n is
n8n is an AI workflow automation platform for technical teams. It combines a visual builder with code nodes so you can build complex agentic workflows without getting boxed in.
Key features
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Visual + code - build visually, drop into JavaScript or Python anywhere.
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Multi-agent setups - orchestrate several agents and RAG systems.
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Multiple models - connect cloud or offline AI models.
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Traceable reasoning - inspect every decision on the canvas.
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Human in the loop - pause for approval when needed.
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Self-hostable - run fully on-prem with Docker.
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Enterprise governance - SSO, RBAC, audit logs.
Install
Deploy with Docker, self-host from GitHub, or use the hosted version.
Use case
n8n is best for technical teams that want flexible, visual automation with AI. It is stronger than no-code tools for complex logic and cheaper than bespoke engineering for many integrations.
License
Faircode license; self-hosted and hosted options available.
Honest caveat
n8n’s power comes from its flexibility, which also means a learning curve. Non-technical users may need help setting up nodes, credentials, and error handling.