MCP Servers

Tool Builder

MCP server that builds itself by creating new tools as needed based on user requests (Requires restart of Claude Desktop to use newly created tools).

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Tools

create_tool

Create a new Python tool with specified functionality

list_available_tools

List all currently available tools

get_bitcoin_price

Gets current Bitcoin price in USD from CoinGecko API

get_weather_forecast

Retrieves weather forecast for a given ZIP code using NWS API

README

WORK IN PROGRESS - USE WITH CAUTION - Windows

MCP Tool Builder

An MCP server that empowers LLMs to dynamically create new tools through MCP clients such as Claude Desktop.

Features

Create new tools by describing them in natural language
- Requires client restart to use new tools (Claude Desktop)
New tools are saved as python scriptlets in ...\mcp-tool-builder\tools
New tool definitions are saved in ...\mcp-tool-builder\tools\tools.json

Example tools included at installation

get_bitcoin_price: Fetches current Bitcoin price from CoinGecko
get_weather_forecast: Gets weather for US ZIP codes (uses geopy)

Creating New Tools

Use the create_tool command in Claude Desktop (or suggest strongly!!) to create new tools dynamically

Installation

Clone this repository
Install dependencies:

cd mcp-tool-builder
uv venv
.venv\Scripts\activate
uv pip install -e .

Usage with Claude Desktop

Add to claude_desktop_config.json:

{
    "mcpServers": {
        "tool-builder": {
            "command": "uv",
            "args": [
                "--directory", 
                "PATH_TO\\mcp-tool-builder",
                "run",
                "tool-builder"
            ]
        }
    }
}

Screenshot 2024-12-24 105318

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