n8n

n8n is an open-source workflow automation platform that combines a visual node-based editor with inline JavaScript and Python code capabilities. It connects 500+ apps through a drag-and-drop builder, with execution-based pricing that counts each workflow run as one execution regardless of step count. The AI subsystem includes 70+ LangChain-based nodes supporting agents, vector stores, memory, and LLM calls from OpenAI, Anthropic, Google, and local models. The AI Agent node can call any other n8n node as a tool, enabling autonomous workflows that query APIs, update CRMs, send emails, and generate reports. n8n can be self-hosted for free with unlimited executions or used via cloud hosting starting at EUR 24 per month. Fair-code licensed with a community of 90,000+ members. Founded in 2019, based in Berlin.