n8n is an open-source workflow automation platform that has evolved into a serious AI agent orchestration tool. Unlike Zapier, it is designed for technical users who need flexibility, self-hosting, and complex logic.
**AI Agent Nodes**
n8n's AI Agent node allows building autonomous agents that use LLMs (GPT-4, Claude, or local models via Ollama) to decide which tools to call based on user input. Building a research agent that searches the web, reads documents, and summarises findings takes minutes with the visual builder.
**LangChain Integration**
Native LangChain integration means any LangChain component — memory, vector stores, tools, chains — can be used directly in n8n workflows without writing Python. This dramatically lowers the barrier to complex AI pipeline construction.
**Self-Hosting**
n8n can be self-hosted via Docker in minutes. For organisations with data residency requirements or high automation volumes, self-hosting eliminates per-task pricing and keeps data on-premises.
**600+ Integrations**
Like Zapier, n8n connects to hundreds of services. The integration library covers CRMs, databases, communication tools, cloud services, and developer APIs.
**Visual Debugger**
The execution log shows every node's input and output, making debugging AI workflows significantly easier than code-based alternatives.
**Pricing**
Self-hosted is free and unlimited. Cloud plans start at $20/month for 2,500 executions. Enterprise pricing available.
**Verdict**
For technical teams building AI-powered automation, n8n is the most capable and cost-effective platform available. The self-hosting option makes it uniquely suited for data-sensitive organisations.