cavemem

by JuliusBrussee · Memory & Knowledge · ★ 676

cavemem is an MCP server by JuliusBrussee. Frozen — cross-agent persistent memory for coding assistants. Still works; the compressed-memory core now ships inside JuliusBrussee/caveman. It has 676 GitHub stars and ranks #116 of 1287 in Memory & Knowledge by stars.

Category: Memory & Knowledge
Author: JuliusBrussee
GitHub stars: 676
This week: Tracking since 18 Oct 2026
Weekly downloads: 83
Language: TypeScript
License: MIT (open source)
Last update: 2026-08-14 (2 months ago)
Links: Source Website npm

ai
caveman
claude
claude-code
compress
memory
rag
rag-chatbot

How to install cavemem

cavemem is published on npm as cavemem, and it depends on @modelcontextprotocol/sdk. These steps assume it runs as a local stdio server, which is the usual setup.

Check the README. Confirm the start command and note any API keys or environment variables it needs (pass them with -e KEY=value or an env block). You need Node.js for npx.

Add it to Claude Code from a terminal:

claude mcp add cavemem -- npx -y cavemem

Or add it to Cursor or Claude Desktop in .cursor/mcp.json or claude_desktop_config.json:

{
  "mcpServers": {
    "cavemem": {
      "command": "npx",
      "args": [
        "-y",
        "cavemem"
      ]
    }
  }
}

Restart the client and check it. Run claude mcp list, or open the client's MCP settings, and confirm cavemem and its tools are listed. The install guide covers VS Code and Codex.

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Maintain this project? Get it featured ($99/mo, pinned at the top of Memory & Knowledge) or see what featuring includes.

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Frequently asked questions

What is cavemem?

cavemem is an MCP server by JuliusBrussee in the Memory & Knowledge category. Frozen — cross-agent persistent memory for coding assistants. Still works; the compressed-memory core now ships inside JuliusBrussee/caveman. It has 676 GitHub stars and ranks #116 of 1287 in Memory & Knowledge by stars. It is written in TypeScript. It is licensed under MIT. It was last updated 2 months ago.

Is cavemem free and open source?

Yes. cavemem is published under the MIT license, so you can run, modify and self-host it at no cost. If it connects to a paid service, that service's own pricing and API terms still apply. Check the repository for the exact license text before using it commercially.

What are the alternatives to cavemem?

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Data last updated 25 October 2026. Stars and downloads are refreshed every day from GitHub and npm.