n8n Node Guide: Memory

Description

AI & LangChain node in n8n.

What It Does

Give chat agents conversation context across turns.

When To Use It

Chat bots, multi-turn assistants, agents that remember.

Key Parameters

Type (Window Buffer, Buffer, Summary), sessionId

Common Mistakes

Scope memory by sessionId – one shared memory leaks context between users.

Example

Agent + Memory (sessionId = {{ $json.userId }}) -> coherent multi-turn chat.

FAQ

Is this node included in n8n Community Edition?

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

Window Buffer keeps token costs bounded; Summary compresses long chats.?

Where does it fit in a workflow?

Memory 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.