lean-memory

Overview

lean-memory is a Model Context Protocol server that provides embedded, local-first agent memory stored in SQLite files. Each namespace gets its own database file, with no external server or cloud dependency required. By speaking the Model Context Protocol, it lets AI assistants call memory functions directly rather than requiring manual data transfers between applications.

The server runs entirely on your machine using the lean-memory Python package, installed via uvx lean-memory. It communicates with MCP clients over stdio and requires no authentication or credentials to operate. Version v0.3.0 is the latest release, distributed under the Apache-2.0 license with source code available at Wuesteon/lean-memory on GitHub, where the project has 47 stars.

lean-memory is listed in the Memory category on mcp.site and works with any MCP client including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, and Zed. If you maintain this project for Wuesteon, you can claim this listing to verify ownership and keep the information up to date.

Installation

// claude_desktop_config.json
{
  "mcpServers": {
    "lean_memory": {
      "command": "uvx",
      "args": [
        "lean-memory"
      ]
    }
  }
}