Memory MCP Server

Overview

The Memory server allows Claude Code to store and retrieve information across sessions, providing persistent context, remembering project details, and maintaining user preferences.

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Installation

1️⃣ Global Installation (Recommended)

Install Memory globally for cross-project persistence:

claude mcp add memory -s user -- npx -y @modelcontextprotocol/server-memory

Local Installation (Project-Specific)

For project-specific memory storage:

claude mcp add memory -s local -- npx -y @modelcontextprotocol/server-memory

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Usage

2️⃣ Using Memory in Claude Code

Once installed, Memory automatically stores and retrieves context from your sessions.

Example: Storing Information

"Remember that the current project uses TypeScript"

Claude stores this information for future reference.

Example: Retrieving Information

Later in the same or a new session:

"What programming language is used in the current project?"

Claude responds:

"TypeScript"

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Features

• Persistent context: Information persists across sessions
• Project-specific notes: Remember project details, conventions, and preferences
• User preferences: Store personal preferences and workflow habits
• Seamless integration: Works automatically with Claude Code
• Cross-session memory: Recall information from previous conversations

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Use Cases

• Remember project-specific coding conventions
• Store frequently used commands or configurations
• Maintain context about ongoing tasks
• Track decisions made in previous sessions
• Remember team preferences and guidelines

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Integration with Other Servers

Memory works seamlessly with other MCP servers:

• With Serena: Combines persistent memory with semantic code understanding
• With Sequential Thinking: Enhances reasoning with historical project context
• With Playwright: Remembers browser automation preferences and configurations

Tip: Global installation enables memory sharing across all projects, while local installation keeps project memories separate.

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Verification

Verify Memory is connected:

claude mcp list

Expected output:

memory: npx -y @modelcontextprotocol/server-memory - ✓ Connected

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Best Practices

• Use global installation for cross-project memory and user preferences
• Use local installation for project-specific isolated memory
• Regularly test memory recall to ensure proper functioning
• Combine with Serena for enhanced project-aware context

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Troubleshooting

If Memory fails to connect:

1. Verify Node.js is installed: node --version
2. Check npx availability: npx --version
3. Remove and reinstall:

   claude mcp remove memory -s user
   claude mcp add memory -s user -- npx -y @modelcontextprotocol/server-memory
   

For more help, see the Troubleshooting Guide.