FastMCP is the fastest, most Pythonic way to build MCP servers and clients. It provides a simple, declarative API for creating powerful AI integrations with minimal boilerplate. Build production-ready MCP servers in minutes, not hours.
90% of MCP server code is boilerplate. Complex protocols, type definitions, error handling - building MCP servers shouldn't require a framework expert.
FastMCP eliminates the complexity. Write simple Python functions, and FastMCP handles the rest. Your ideas become MCP servers in minutes.
Build MCP servers 10x faster with minimal code.
Simple decorators and intuitive patterns Python developers love.
Full type hints and validation with Pydantic models.
Built-in CLI for testing, debugging, and deployment.
Install FastMCP
pip install fastmcpCreate your first server
from fastmcp import FastMCP
app = FastMCP("my-server")
@app.tool()
def hello(name: str) -> str:
return f"Hello, {name}!"
app.run()Configure Claude Desktop
{
"mcpServers": {
"my-server": {
"command": "python",
"args": ["server.py"]
}
}
}