n8n + MemorySync

Overview

Install n8n-nodes-memorysync from the community-nodes panel and get two nodes. The MemorySync node covers six workflow operations — Add Memory, Add Conversation Turn, Search, Recall Context, Get Many, Delete — and is marked usable as a tool, so an AI Agent can call it autonomously. The MemorySync Chat Memory node plugs into the AI Agent’s memory port: conversation history persists in MemorySync across executions, restarts and redeploys, scoped by session and end user. Writes carry deterministic idempotency seeds so retried executions never duplicate a conversation, a MemorySync outage degrades to “no history this run” instead of failing the workflow, and the memory node’s clear() is a deliberate no-op — an agent can never bulk-delete a customer’s history. The built-in credential test makes a real query, so a bad key fails at setup time, and the package has zero runtime dependencies. n8n’s own Zep memory node is deprecated and hard-removed in n8n v3; this is the maintained replacement pattern.

Setup status and requirements

Supported version

n8n-nodes-memorysync 1.0.0 (npm)

Last setup review

2026-08-24

Permissions

A MemorySync API key with read and write scopes.

Limits

Community nodes require self-hosted n8n (Cloud lists only verified nodes; verification submission in progress). The Chat Memory sub-node requires an n8n version that ships @n8n/ai-node-sdk.

Capabilities

• AI Agent memory sub-node — history persists across executions and restarts
• Six workflow operations including prompt-ready Recall Context
• usableAsTool: the AI Agent can call memory operations autonomously
• Deterministic idempotency seeds — retried executions never duplicate
• clear() is a deliberate no-op: agents cannot bulk-delete history
• Fail-open: a memory outage never breaks the workflow or the agent
• Credential test performs a real query — bad keys fail at setup
• Zero runtime dependencies (verified-program ready)

Quick Start

Settings → Community Nodes → Install → n8n-nodes-memorysync

Chat Trigger ─▶ AI Agent ◀─memory─ MemorySync Chat Memory
                    ◀─tool─── MemorySync (Search / Add)

Memory node parameters:
  Session ID:  {{ $json.sessionId }}
  End User ID: {{ $json.userId }}
  Context Window Length: 10   # turn pairs per run

Use Cases

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