Longterm Memory MCP server

LongtermMemory-MCP

A fully local MCP server that gives AI agents persistent, semantic long-term memory — without any cloud dependencies.

Inspired by mcp-mem0, but runs 100% on your machine:

Tools

Core

Search

Maintenance

Quick Start

Claude Code Plugin (recommended)

Install via the Claude Code marketplace — this sets up both the MCP server and a companion skill that teaches Claude how to use memory effectively:

/plugin marketplace add MarcelRoozekrans/LongtermMemory-MCP
/plugin install longterm-memory@longterm-memory-marketplace

This automatically:

• Configures the MCP server (no manual JSON editing)
• Installs the long-term-memory skill (Claude learns to recall context at session start, save insights after tasks, and deduplicate memories)

Use with npx (no install needed)

npx longterm-memory-mcp

Or install globally

npm install -g longterm-memory-mcp
longterm-memory-mcp

Or from source

git clone https://github.com/MarcelRoozekrans/LongtermMemory-MCP.git
cd LongtermMemory-MCP
npm install && npm run build
npm start

Configuration

Claude Code

If you installed via the plugin marketplace, the MCP server is already configured. For manual setup, add to your MCP settings (~/.claude/settings.json or project .claude/settings.json):

{
  "mcpServers": {
    "longterm-memory": {
      "command": "npx",
      "args": ["-y", "longterm-memory-mcp"]
    }
  }
}

Claude Desktop

Add to claudedesktopconfig.json:

{
  "mcpServers": {
    "longterm-memory": {
      "command": "npx",
      "args": ["-y", "longterm-memory-mcp"]
    }
  }
}

Agent Instructions

The repo includes agent instructions that teach AI agents how to use memory effectively (automatic recall, save patterns, deduplication):

Database Location

By default, memories are stored in a shared, user-scoped location:

Shortened. The full README is on GitHub.