n8n Node Guide: AI Agent

Description

AI & LangChain node in n8n.

What It Does

An LLM agent that can use tools, memory, and structured output.

When To Use It

Autonomous tasks: research, triage, tool-calling assistants, chat bots.

Key Parameters

Model, Memory, Tools, System Prompt, Output Parser

Common Mistakes

Tool names and descriptions ARE the prompt – the LLM decides from them. Write them well.

Example

Agent with HTTP Request Tool + Code Tool + memory -> customer support bot.

FAQ

Is this node included in n8n Community Edition?

Yes – AI Agent ships with the free Community Edition. No paid license needed.

Use an agent when the path is unknown; use LLM Chain when steps are fixed.?

Where does it fit in a workflow?

AI Agent works with any other node – connect it after a trigger or data node, and feed its output into the next step. Standard n8n data flow: trigger -> transform -> act.

Is support included?

Yes – message the seller through the store and I will help you wire this node.