Example MCP Server using FastMCP
Prerequisites
uv
python 3.12
Related MCP server: MCP Tool
Install
After checking out the repo, run uv venv and uv sync
How to run
on Mac (replace folder name with the root of the repo)
uv run --python /Users/chenjian/Documents/ai_projects/my_mcp_server/.venv/bin/python fastmcp run /Users/chenjian/Documents/ai_projects/my_mcp_server/main.py
or
uv run -p /Users/chenjian/Documents/ai_projects/my_mcp_server/.venv/bin/python fastmcp run /Users/chenjian/Documents/ai_projects/my_mcp_server/main.py
Adding this MCP on IDEs
With
Claude Desktopandcursor
{
"mcpServers": {
"my_mcp_server": {
"type": "stdio",
"command": "uv",
"args": [
"run",
"--python",
"/Users/chenjian/Documents/ai_projects/.venv/bin/python",
"fastmcp",
"run",
"/Users/chenjian/Documents/ai_projects/my_mcp_server/main.py"
]
}
}
}
With
Claude Code
claude mcp add uv run --python /Users/chenjian/Documents/ai_projects/my_mcp_server/.venv/bin/python fastmcp run /Users/chenjian/Documents/ai_projects/my_mcp_server/main.py
or
claude mcp add uv run -p /Users/chenjian/Documents/ai_projects/my_mcp_server/.venv/bin/python fastmcp run /Users/chenjian/Documents/ai_projects/my_mcp_server/main.py