Memory MCP Server: Install & Setup

Install Memory in Claude Code

Claude Code

claude mcp add letta-ai-memory -e LETTA_API_KEY=... -- npx -y @letta-ai/memory-mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "letta-ai-memory": {
      "command": "npx",
      "args": [
        "-y",
        "@letta-ai/memory-mcp"
      ],
      "env": {
        "LETTA_API_KEY": "..."
      }
    }
  }
}

Replace each ... with your own value.

Frequently asked questions

What does the Memory MCP server do?

MCP server for AI memory management using Letta - Standard MCP format

Is the Memory MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Memory run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Memory to Claude Code?

Run: claude mcp add letta-ai-memory -e LETTA_API_KEY=... -- npx -y @letta-ai/memory-mcp

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