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Running Your MCP Server with FastMCP v2.0

@GanonUchiha

Repository

Basic information

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Other

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stdio

Author

GanonUchiha

About Running Your MCP Server with FastMCP v2.0

My example of setting up a MCP server

#fastmcp#mcp-server#server-setup

Running Your MCP Server with FastMCP v2.0 config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "My-FastMCP-Example": {
      "command": "uv",
      "args": [
        "pip",
        "install",
        "fastmcp"
      ]
    }
  }
}

Running Your MCP Server with FastMCP v2.0 tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is Running Your MCP Server with FastMCP v2.0?

This guide explains how to run a custom MCP server using FastMCP v2.0 and install it for use with Claude Desktop. It is intended for developers who already have a server script (e.g., server.py) ready.

How to use Running Your MCP Server with FastMCP v2.0?

Install FastMCP, run the server with fastmcp run server.py (or python server.py if using the standard entry point), then install it for Claude Desktop with fastmcp install server.py and restart Claude Desktop.

Key features of Running Your MCP Server with FastMCP v2.0

  • Provides fastmcp run and fastmcp install commands
  • Supports specifying additional Python dependencies
  • Allows passing environment variables during installation
  • Supports loading environment variables from a .env file

Use cases of Running Your MCP Server with FastMCP v2.0

  • Running a custom MCP server locally for development
  • Integrating a custom MCP server with Claude Desktop
  • Deploying a server with specific Python package dependencies

Frequently asked questions

1

How do I install FastMCP?

Use `uv pip install fastmcp` (recommended), `brew install uv` then `uv pip install fastmcp` on macOS, or `pip install fastmcp`.

2

How do I run my MCP server?

Run `fastmcp run server.py`. If your script uses `mcp.run()`, you can also run `python server.py`.

3

How do I install the server for Claude Desktop?

Run `fastmcp install server.py`, then restart Claude Desktop to load the server.

4

Can I specify additional Python dependencies?

Yes, by passing `dependencies=["pandas", "numpy"]` when instantiating FastMCP in your server code.

5

How do I set environment variables for the server?

During installation, use `fastmcp install server.py -e API_KEY=your_api_key` or load from a `.env` file with `fastmcp install server.py -f .env`.

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