n8n is a source-available workflow automation tool that lets developers and technical teams build complex automations visually or via code. It supports AI agent nodes that call LLMs (OpenAI, Claude, Gemini) and can execute multi-step reasoning chains. The self-hosted Community edition is free; n8n Cloud starts at €24/month. It is widely used for connecting APIs, automating data pipelines, and building autonomous AI workflows with over 400 native integrations. Key features: - Native AI agent nodes with support for OpenAI, Anthropic Claude, and Google Gemini - 400+ built-in integrations for SaaS tools, databases, and APIs - Self-hosted (free, open-source Community edition) or managed cloud deployment - Visual workflow builder with code fallback (JavaScript/Python nodes) - AI Workflow Builder: generates workflows from natural language prompts - SSO, RBAC, version control, and multi-environment support on Business/Enterprise tiers
Self-hosted Community: free. Cloud: Starter €24/month (2,500 executions), Pro €60/month (10,000 executions), Business €800/month (40,000 executions). Enterprise: custom.