n8n

A workflow automation platform for technical teams that want AI agents and business processes in one place. You build in a visual editor, then drop into code whenever a step needs it. Every step is open to inspect, so the workflow itself serves as the documentation.

It suits developers, IT, security and ops teams who need automations other people can read, run and trust.

• 500+ native integrations: connect any API through HTTP, and any agent or coding assistant through MCP.
• Agent visibility: watch agents work live or open any past run inside the same workflow.
• Rules around AI: structured inputs and outputs, human-in-the-loop approvals, guardrails and evaluations.
• Easy recovery: spot an error at a glance and re-run only the step that broke. Replay past runs or mock data to skip waiting on external systems.
• Change tracking: version history shows who changed what, and when.
• Self-hosting: deploy on-prem or with Docker to keep data in your own environment, or use the hosted version. The source code is on GitHub.

For larger organizations, it adds SSO SAML, LDAP, RBAC permissions, encrypted secret stores, audit logs, log streaming to your SIEM, and Git-based version control with isolated environments and workflow diffs.

Examples from its users include onboarding new hires across Slack, Jira and Notion, triaging alerts with an AI agent, investigating security threats across several tools, and qualifying inbound leads. Huel reports saving 1,000 hours, and Vodafone uses it for security operations.