n8n
Open-source workflow automation platform for building AI agents and multi-step workflows across 500+ apps and APIs
n8n is a workflow automation platform for building AI agents and automated processes. Workflows react to triggers, look up data, call AI models, take actions across apps and route decisions, such as processing a refund after a Slack approval or triaging an incoming alert.
Key features:
- A visual builder with the option to drop into code.
- 500+ native integrations, any API over HTTP and any agent via MCP.
- AI agent nodes that work with any model, with structured inputs and outputs.
- Human-in-the-loop approvals and rule-based controls for AI actions.
- Live and historical run views, with single-step re-runs after failures.
- Workflow history and Git-based version control.
n8n's source code is on GitHub, and the Community Edition can be self-hosted on-premises or with Docker. Hosted plans include unlimited users and workflows and are priced by executions: Starter is $20/month and Pro $50/month billed annually, both with a free trial. Business ($800/month, self-hosted) adds SSO, LDAP and Git version control, and Enterprise adds log streaming and SLAs.