n8n

What It Is

n8n (pronounced “n-eight-n”) is a workflow automation tool that lets you build multi-step processes by connecting different services together visually. You create workflows by dragging nodes onto a canvas and connecting them: one node triggers the workflow (like a schedule or a webhook), the next fetches data from an API, another processes it through an AI model, and a final one sends the result somewhere. It is similar to Zapier or Make, but n8n is open source, meaning you can self-host it for free and have full control over your data and workflows.

Why It Matters

For operators building AI-powered systems, n8n is where automation lives. Instead of manually running tasks or writing scripts for every integration, you build visual workflows that run on their own. The AI nodes in n8n let you incorporate language models directly into your automation pipelines. Being open source also means no per-task pricing limits that can make commercial alternatives expensive at scale. You own the infrastructure and the data flowing through it.

In Practice

A daily content pipeline might work like this in n8n: a cron trigger fires at 8 AM, a node fetches trending topics from an API, another node sends those topics to Claude for analysis and drafting, a review node checks the output against quality criteria, and a final node publishes the approved content or sends it via Resend. The entire flow runs without you touching it.