💡**知识图谱记忆服务器**：Claude Desktop 通过知识图谱记忆服务器来记住和组织用户的跨会话信息，存储用户偏好、历史对话和个人详细信息，并理解信息间的关系。

⚙️**环境配置与连接**：通过配置 `mcp.json` 文件，并设置 Claude，使其能够利用知识图谱创建实体、建立关系并检索信息，实现 Claude 与本地知识图谱的连接。

🤖**对话流程自动化**：在 Claude 的个人偏好设置中添加文本，可以使 Claude 在每次交互时自动执行用户识别、记忆检索和记忆更新等步骤，无需手动操作。

🛠️**MCP工具集**：配置完成后，将有9个MCP工具可用于知识图谱服务器，允许创建、删除、读取和搜索实体、关系和观察结果，增强了Claude处理和管理知识的能力。

A Knowledge Graph Memory Server allows Claude Desktop to remember and organize information about a user across multiple chats. It can store things like user preferences, past conversations, and personal details. Because the information is saved as a knowledge graph, Claude can understand relationships between different pieces of information. This leads to more personalized responses and reduces repetition — you won’t have to explain the same things again and again.

In this tutorial, we will implement a simple persistent memory using a local knowledge graph in Claude Desktop, to help it remember user information across chats and provide more personalized, consistent responses.

Step 1: Installing the dependencies

Node.js Installation

We’ll be using npx to run the Knowledge Graph Memory Server, and for that, Node.js is required.

Download the latest version of Node.js from nodejs.orgRun the installer.Leave all settings as default and complete the installation

Claude Desktop Installation

You can download the latest version of Claude Desktop at https://claude.ai/download. Next, you’ll need to configure Claude to connect with your MCP server. To do this, open the claude_desktop_config.json file located in the Claude directory using any text editor. If the file doesn’t exist, go ahead and create it manually.

Step 2: Configuring the mcp.json file

In the mcp.json file, enter the following code:

{    "mcpServers": {      "memory": {        "command": "npx",        "args": [          "-y",          "@modelcontextprotocol/server-memory"        ],        "env": {            "MEMORY_PATH": "./memory.json"        }      }    }  }

Step 3: Configuring Claude settings

Now, we need to configure Claude so it can use the knowledge graph to create entities, build relationships, and retrieve relevant information.

Go to File > Settings > Claude Settings > Configure.

In the Personal Preferences section, add the following text: 

(This preference will automatically apply to all conversations.)

Follow these steps for each interaction:1. User Identification:   - You should assume that you are interacting with default_user   - If you have not identified default_user, proactively try to do so.2. Memory Retrieval:   - Always begin your chat by saying only "Remembering..." and retrieve all relevant information from your knowledge graph   - Always refer to your knowledge graph as your "memory"3. Memory   - While conversing with the user, be attentive to any new information that falls into these categories:     a) Basic Identity (age, gender, location, job title, education level, etc.)     b) Behaviors (interests, habits, etc.)     c) Preferences (communication style, preferred language, etc.)     d) Goals (goals, targets, aspirations, etc.)     e) Relationships (personal and professional relationships up to 3 degrees of separation)4. Memory Update:   - If any new information was gathered during the interaction, update your memory as follows:     a) Create entities for recurring organizations, people, and significant events     b) Connect them to the current entities using relations     b) Store facts about them as observations

Once everything is configured, you will see 9 MCP tools available for the Knowledge Graph Server. These tools allow you to: create entities, create relationships, add observations, delete entities, delete observations, delete relationships, read the graph, search nodes, and open nodes.

Additionally, the text we added in the preferences section enables Claude to automatically use these tools during conversations.

Even if we go to a new chat, Claude will remember the information from the previous chats via the knowledge graph. The integration of this MCP tool enhances Claude’s ability to create, modify, and utilize knowledge in real-time, making it a powerful assistant for tasks like database management and SQL query generation. With this memory system in place, Claude becomes a more intelligent, responsive, and consistent tool for all your future interactions. For more details on the knowledge memory server, you can visit this link, where you’ll find resources to help you build even more advanced applications.

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