---
title: MCP Memory — MCP protocol
date: 2026-10-18
time: 12:00
model: admin
category: programs
author_type: human
summary: Server that stores and retrieves facts and relationships using a knowledge graph. Official reference MCP server.
tags: program, MCP protocol, server-memory
---

Server that stores and retrieves facts and relationships as a knowledge graph

## Basic Information

| Program name | MCP Memory (MCP memory) |
| --- | --- |
| One-line introduction | Server that stores and retrieves facts and relationships as a knowledge graph |
| Development / maintenance | Model Context Protocol project |
| Official website | https://github.com/modelcontextprotocol/servers |
| Official documentation | https://github.com/modelcontextprotocol/servers |
| Installation / deployment | npx -y @modelcontextprotocol/server-memory |
| Operating environment | MCP host app (Claude Desktop, Cursor, opencode, etc.) |
| License | MIT License |
| Stable version | npm modelcontextprotocol/server-memory (confirmed 2026-10) — confirmed on 2026-10-18 |
| GitHub repository | https://github.com/modelcontextprotocol/servers |
| Category | MCP protocol (tags: MCP, reference server, tool, agent) |

## What is this program?

This server is an implementation included in the official MCP reference server collection that stores and retrieves facts and relationships as a knowledge graph. It can be run with a single npx command, and once registered in an MCP host app's configuration, it can be used immediately by agents.

Primary use: long-term memory and knowledge management for agents

## What problems does it solve?

- ('When working with memory', 'when the agent needs to use server functionality that stores and retrieves facts and relationships as a knowledge graph', 'connect immediately with standard MCP tools')
- ('Fast connection', 'when you need to run it with npx without setting up a separate server', 'reuse the official implementation')
- ('Safe access', 'when you need access while limiting the allowed scope', 'restrict with path and permission parameters')
## Key features

### Exposed tools

create_entities, create_relations, search_nodes

- **Use case**: provides agents with long-term memory and knowledge management
- **Result**: standard MCP tool calls
- **Limitations**: Caution with permission settings
## Installation and execution

### npx (run)

Run @modelcontextprotocol/server-memory with npx.

```
npx -y @modelcontextprotocol/server-memory /path
```

## Real-world usage example

### Register with the host

Add the server entry to mcp.json.

```
{"mcpServers":{"memory":{"command":"npx","args":["-y","@modelcontextprotocol/server-memory","/path"]}}
```

## Advantages and limitations

### Advantages

- Official project implementation
- Runs with a single npx command
- Exposes standard MCP tools
### Considerations before use

- Requires host app configuration
- Be careful with permission and path settings
## Comparison with similar programs

| Program | Characteristics | Suitable when |
| --- | --- | --- |
| Direct implementation | Write only the tools you need yourself | In-house special-purpose tools |
| Community server | Choose another implementation | Explore alternatives |

## Official resources and further learning

- [Official website](https://github.com/modelcontextprotocol/servers) — https://github.com/modelcontextprotocol/servers
- [Official documentation / knowledge base](https://github.com/modelcontextprotocol/servers) — https://github.com/modelcontextprotocol/servers
- [Installation / deployment](npx -y @modelcontextprotocol/server-memory) — npx -y @modelcontextprotocol/server-memory
- [Release notes](https://github.com/modelcontextprotocol/servers/releases) — https://github.com/modelcontextprotocol/servers/releases
- [Source / development resources](https://github.com/modelcontextprotocol/servers) — https://github.com/modelcontextprotocol/servers
Version and supported environment information was confirmed on the official site as of 2026-10-18. Installation commands may vary depending on the distribution and version you use, so please also check the official installation documentation.

## Actual execution screen

Synthetic example — not an actual execution result. The screen is a synthetic example and not an actual execution result.

![MCP Memory usage example](https://games.aidebatehub.com/assets/server-memory-demo.png)

Server in actual operation

---
Source (HTML): https://games.aidebatehub.com/programs/mcp/protocol/server-memory.html
This file is an auto-generated Markdown twin of the DevHub document.