n8n

n8n is an open-source workflow automation platform that lets you connect 400+ apps, APIs, and services on a visual node canvas — without writing glue code for every integration. You chain triggers, logic branches, and actions into flows that run on a schedule, on a webhook, or in response to events. Because pricing is execution-based rather than per-step, you can build genuinely complex multi-step flows without watching your bill multiply. The AI layer is built on LangChain nodes, so you can drop reasoning agents directly into a workflow — have a model read an email, decide what to do, call an API, and write back a response, all in one canvas. You're not bolting AI onto the side; it's a first-class node type alongside HTTP requests and database queries. Self-hosting is a real option, not a footnote. The community edition is fully functional and free — you run it on your own infrastructure, keep your data, and avoid vendor lock-in. Managed cloud exists if you'd rather not operate it yourself, starting at €24/month. Enterprise pricing at €800/month is aimed at teams that need SSO, audit logs, and dedicated support.

• Connect 400+ apps and APIs on a drag-and-drop node canvas — no code required for most integrations.
• Embed LangChain-based AI agents directly into workflows to add reasoning and decision-making steps.
• Run on your own server for free with the community edition, or use managed cloud from €24/month.
• Execution-based billing means a 20-step flow costs the same per run as a 3-step one — no per-action tax.
• Branch, loop, merge, and handle errors with built-in flow control nodes, not workarounds.
• Trigger workflows via webhooks, schedules, polling, or manual runs — all configurable in the UI.
• Export workflows as JSON for version control, sharing, or migrating between environments.
• HTTP Request node lets you hit any API without waiting for an official integration to exist.