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mcptoon

mcptoon is an MCP server that adds developer tools to AI assistants such as Claude Desktop, Claude Code and Cursor. MCP tools + agent skills in one zero-dependency CLI: 71,929 -> 581 tokens (-99.2%, measured). It has 214 GitHub stars, is released under the Apache-2.0 license and runs locally with uvx mcptoon.

github.com/activeing123/mcptoon (opens in a new tab)

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Install mcptoon

Generated from the server's MCP registry entry. Replace your-value with your own values.

Claude Desktop

claude_desktop_config.json
{
  "mcpServers": {
    "mcptoon": {
      "command": "uvx",
      "args": [
        "mcptoon"
      ]
    }
  }
}

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

Claude Code

claude mcp add --transport stdio mcptoon -- uvx mcptoon

Cursor

.cursor/mcp.json
{
  "mcpServers": {
    "mcptoon": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mcptoon"
      ]
    }
  }
}

Project file; use ~/.cursor/mcp.json to enable it in every project.

VS Code

.vscode/mcp.json
{
  "servers": {
    "mcptoon": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mcptoon"
      ]
    }
  }
}

Config formats checked against the official docs on Oct 7, 2026: modelcontextprotocol.io (opens in a new tab), code.claude.com (opens in a new tab), cursor.com (opens in a new tab), code.visualstudio.com (opens in a new tab).

About mcptoon

Its own compact format does token optimization, tool discovery and context compression at once: it cuts the tool context by ~90% (99.2% on a 255-tool sample; run mcptoon status for your own number) and you write no config line for any desktop or command-line agent.**

  • cli
  • mcp
  • model-context-protocol
  • mcp-server
  • llm
  • claude
  • claude-code
  • cursor
  • python
  • codex

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FAQ

mcptoon FAQ

Still curious? Email info@appsgit.com.

What is mcptoon?

mcptoon is an MCP server that adds developer tools to AI assistants such as Claude Desktop, Claude Code and Cursor. MCP tools + agent skills in one zero-dependency CLI: 71,929 -> 581 tokens (-99.2%, measured). It has 214 GitHub stars, is released under the Apache-2.0 license and runs locally with uvx mcptoon. The source code is at github.com/activeing123/mcptoon.

How do I install the mcptoon MCP server?

Add the command uvx mcptoon to your MCP client: put it in claude_desktop_config.json for Claude Desktop, run claude mcp add for Claude Code, or add it to .cursor/mcp.json (Cursor) or .vscode/mcp.json (VS Code). The snippets on this page are ready to paste.

Is mcptoon free?

The server is open source under the Apache-2.0 license, so running it is free. It does not declare any required API key.

Is mcptoon actively maintained?

The most recent commit was on Oct 6, 2026. The latest release is v0.8.15, published Oct 6, 2026. appsgit only lists MCP servers with a commit in the last six months and re-checks every server daily.