What can you do with cartridge cafe?

cartridge.cafe

Little worlds, served as single files. Brewed by people and their AIs.

A world here is one text file — WGSL visuals + a JS hook + fields — running live in the visitor's browser on the Field Engine. Owners mint scoped tokens so any AI can build in their world over plain HTTP. Save points are append-only; remixes carry lineage.

Run

cd web
npm install
cp .env.example .env.local   # fill in
npx prisma db push
npm run dev

The presence server (ships, docking) lives in websocket-server/ — one small always-on node (Railway hobby works).

Map

/ — the cafe: menu of house cartridges + the shelf of player worlds
/worlds — gallery + create
/space/[slug] — a world: live, chrome-less; tools behind ⚙; Connect AI mints keys
/engine — the workshop (full editor chrome, scene tabs)
src/app/hub/ — dockstar + spatial kit, awaiting the hub (plots, ships, portals)
web/src/app/engine/AI_ENGINE_GUIDE.md — the guide any connected AI should read (also served at /api/engine/guide)

Coming

Hub world with staked plots (stake rank = distance from center), ship navigation with docking, portals, branch viewer, votes, and tournaments past 5 candidates. Stake source is pluggable: points first, $CART (Solana) when it launches.

Install

Add cartridge cafe to your client. Pick the one you use.

claude mcp add cartridge-cafe-mcp -- npx -y cartridge-cafe-mcp

codex mcp add cartridge-cafe-mcp -- npx -y cartridge-cafe-mcp

amp mcp add cartridge-cafe-mcp -- npx -y cartridge-cafe-mcp

{
  "mcpServers": {
    "cartridge-cafe-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "cartridge-cafe-mcp"
      ]
    }
  }
}

Add to `claude_desktop_config.json`, then restart Claude Desktop.

{
  "mcpServers": {
    "cartridge-cafe-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "cartridge-cafe-mcp"
      ]
    }
  }
}

Add to `~/.cursor/mcp.json`, or `.cursor/mcp.json` for a single project.

code --add-mcp '{"name":"cartridge-cafe-mcp","command":"npx","args":["-y","cartridge-cafe-mcp"]}'

Or add the block manually to `.vscode/mcp.json` under `servers`.

{
  "mcpServers": {
    "cartridge-cafe-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "cartridge-cafe-mcp"
      ]
    }
  }
}

Add to `~/.codeium/windsurf/mcp_config.json`.

{
  "mcpServers": {
    "cartridge-cafe-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "cartridge-cafe-mcp"
      ]
    }
  }
}

Add to `cline_mcp_settings.json` via the MCP Servers panel.

{
  "mcpServers": {
    "cartridge-cafe-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "cartridge-cafe-mcp"
      ]
    }
  }
}

Add to `~/.gemini/settings.json`.

{
  "mcpServers": {
    "cartridge-cafe-mcp": {
      "type": "local",
      "command": "npx",
      "args": [
        "-y",
        "cartridge-cafe-mcp"
      ],
      "tools": [
        "*"
      ]
    }
  }
}

Add to `~/.copilot/mcp-config.json`, or run `/mcp add` inside the CLI.

{
  "context_servers": {
    "cartridge-cafe-mcp": {
      "command": {
        "path": "npx",
        "args": [
          "-y",
          "cartridge-cafe-mcp"
        ]
      }
    }
  }
}

Add to your Zed `settings.json`.

npx -y cartridge-cafe-mcp

Run `goose configure`, choose **Add Extension → Command-line Extension**, and paste this command.

Score

39 / 100

Incomplete

Documentation19/25
Maintenance19/25
Trust6/20
Capability0/15
Install experience12/15

Documents what it does and how to connect
Has a resolvable package or endpoint
Exposes at least one tool, prompt or resource
README has substantive content
Includes a code example
Documents its configuration
Mentions credentials or security posture
Last commit 0 days ago
Has a release history
Repository is not archived
No licence detected
Namespace verified in the official MCP registry
Claimed by its owner
Published under an organisation
0 tool(s) documented
Provides prompt templates
Provides resources
12 documented install method(s)
Published to a package registry
Offers a hosted endpoint — no local install

Read the full rubric →

Version history

Versions	Published
0.1.1Latest	Jul 20, 2026