How To Build Your Own Mcp

What is How To Build Your Own Mcp

how-to-build-your-own-mcp is a project that provides a framework for creating your own MCP server, allowing developers to build custom tools and functionalities using the MCP library.

Use cases

Use cases include building a calculator tool, creating a data processing server, or developing a custom API for specific applications.

How to use

To use how-to-build-your-own-mcp, first install the UV Tool using the provided command. Then, create a new project with the MCP library, add the necessary components, and define your custom tools in the main.py file. Finally, run the server using ‘python main.py’.

Key features

Key features include the ability to create custom tools, a simple and intuitive API, and asynchronous support for handling multiple requests efficiently.

Where to use

how-to-build-your-own-mcp can be used in various fields such as software development, automation, and any application requiring custom server functionalities.

Install UV Tool

curl -LsSf https://astral.sh/uv/install.sh | sh

Create New Project With MCP Library

# Create project
uv init stdio_mcp_server --bare

# Change to project directory
cd stdio_mcp_server
# Install MCP
uv add "mcp[cli]"

# create main.py file
touch main.py

from mcp.server.fastmcp import FastMCP
import asyncio

# 1. Create a FastMCP server instance
mcp = FastMCP(
    name="sum_two_numbers_mcp_server",
)

# 2. Define a tool that sums two numbers
@mcp.tool(
    name="sum_two_numbers",
    description="A tool that sums two numbers.",
)
async def sum_two_numbers_tool(a: int, b: int) -> int:
    """A tool that sums two numbers."""
    return f"The sum of {a} and {b} is {a + b} (Calculated by MCP server)."


if __name__ == "__main__":
    # 3. Run the FastMCP server
    asyncio.run(mcp.run())


# 4. Run with : python main.py