MCP Tool Builder
MCP server for dynamic tool creation via LLMs. MCP Tool Builder is a Model Context Protocol (MCP) server maintained by hanweg. It connects to MCP-compatible clients such as Claude Desktop, Cursor, Cline, and other agents that speak the protocol. It exposes 2 tools, including get_bitcoin_price and get_weather_forecast, that an agent can call directly. It is categorized under AI/LLM, Tool/Builder and Integration/Claude.
What is this MCP
This is a Model Context Protocol (MCP) server that allows Large Language Models (LLMs) like Claude to dynamically create and manage new tools through natural language descriptions.
How to use this MCP
Integrate with Claude Desktop by adding the server configuration toclaude_desktop_config.json, then use the create_tool command to generate new tools through natural language prompts.
What this MCP can be used for
Enables LLMs to extend their own capabilities by creating custom tools (like fetching Bitcoin prices or weather forecasts) on demand, stored as Python scriptlets for future use.
AIMCP authority
DR and traffic signal for the AIMCP public domain.
Frequently asked questions
What is the MCP Tool Builder MCP server?
MCP Tool Builder is a Model Context Protocol server from hanweg. It lets MCP-compatible AI clients call its tools over a standard interface, so agents like Claude, Cursor, and Cline can use it without custom integration.
How do I connect MCP Tool Builder to my AI client?
Add MCP Tool Builder to your client's MCP configuration using the stdio or SSE connection shown in the usage examples on this page, then restart the client to load the server.
What tools does MCP Tool Builder provide?
MCP Tool Builder provides 2 tools: get_bitcoin_price and get_weather_forecast.
Is MCP Tool Builder free to use?
MCP Tool Builder is listed on AIMCP for free. Any API keys or accounts required by the underlying service are set by its provider.
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