Metatool MCP Server
Project description
MCP Server MetaTool
Overview
Metatool MCP Server is a proxy server that joins multiple MCP servers and forward tool calls to the appropriate server. It should be used with metatool-app, the GUI tool manager for MCP which is also open source, together.
How it works
- mcp-server-metatool itself is both a MCP client and a MCP server
- On startup, it connects to the metatool-app API to get a list of MCP servers to connect to
- On
list_toolscall of MCP, it joins all tools from all MCP servers with namespace isolation. - On
call_toolcall of MCP, it forwards the call to the appropriate server.
Installation
Best way to use this is through uv A METATOOL_API_KEY environment variable must be set
export METATOOL_API_KEY="my_api_key" # get from metatool-ai/metatool-app, which is self hostable and free
uvx mcp-server-metatool
You need a MCP Client to connect to this server to use it.
Additional Configuration
A METATOOL_API_BASE_URL environment variable can be set to point to another metatool instance
export METATOOL_API_BASE_URL="http://localhost:12005"
License
Apache License 2.0
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