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MCP Multi-Tool Server

by xiaoyuchenhot
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Python
Hybrid
  • Apple
  • Linux

MCP Multi-Tool Server

A comprehensive Model Context Protocol (MCP) server that provides calculator tools, documentation resources, and prompt templates. This server supports both stdio and SSE (Server-Sent Events) transports, making it compatible with various MCP clients including Claude Desktop.

Features

šŸ§® Calculator Tools (8 Tools)

  • add - Add two numbers

  • subtract - Subtract two numbers

  • multiply - Multiply two numbers

  • divide - Divide two numbers

  • power - Raise a number to a power

  • square_root - Calculate square root

  • factorial - Calculate factorial

  • calculate_percentage - Calculate percentage

šŸ“š Resources

  • TypeScript SDK Documentation - Access the full TypeScript SDK MCP documentation via resource URI typescript-sdk-mcp://documentation

šŸ“ Prompts

  • Meeting Summary - Generate executive meeting summaries from transcripts using a customizable template

šŸ”Œ Transport Support

  • stdio (default) - Standard input/output for local integrations

  • SSE - Server-Sent Events for remote HTTP connections

Table of Contents

  1. Prerequisites

  2. Installation

  3. Quick Start

  4. Usage

  5. Transport Modes

  6. Connecting to Claude Desktop

  7. API Reference

  8. Project Structure

  9. Troubleshooting

  10. Contributing

  11. License

Prerequisites

  • Python 3.10+ (Python 3.12 recommended)

  • uv - Fast Python package installer

  • Administrative privileges (for software installation)

Installation

Step 1: Install Python

Windows

  1. Download Python from python.org/downloads

  2. Run the installer and check "Add Python to PATH"

  3. Verify installation:

    python --version pip --version

macOS

# Using Homebrew (recommended) brew install python@3.12 # Or download from python.org

Linux (Ubuntu/Debian)

sudo apt update sudo apt install python3 python3-pip python3-venv -y

Step 2: Install uv

Windows

powershell -ExecutionPolicy ByPass -c "irm https://astral.sh/uv/install.ps1 | iex"

Close and reopen PowerShell, then verify:

uv --version

macOS/Linux

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

Add to PATH if needed:

export PATH="$HOME/.cargo/bin:$PATH"

Verify:

uv --version

Step 3: Clone and Setup

# Clone the repository git clone <your-repo-url> cd mcp-multi-tool-server # Initialize project uv init --no-readme # Create virtual environment uv venv # Activate virtual environment # Windows PowerShell: .\.venv\Scripts\Activate.ps1 # Windows CMD: .venv\Scripts\activate.bat # macOS/Linux: source .venv/bin/activate # Install dependencies uv add "mcp[cli]"

Quick Start

Running with stdio (Default)

# Activate virtual environment first source .venv/bin/activate # or .\.venv\Scripts\Activate.ps1 on Windows # Run the server python server.py

The server will start in stdio mode, ready to accept connections from MCP clients.

Running with SSE

# Set transport to SSE TRANSPORT=sse python server.py # Or with custom host/port TRANSPORT=sse HOST=0.0.0.0 PORT=8000 python server.py

The server will start an HTTP server on the specified host and port, accessible via SSE.

Usage

Environment Variables

Variable

Description

Default

TRANSPORT

Transport mode:

stdio

or

sse

stdio

HOST

Host address for SSE transport

0.0.0.0

PORT

Port number for SSE transport

8000

Examples

stdio Mode (for Claude Desktop)

python server.py

SSE Mode (for HTTP clients)

TRANSPORT=sse PORT=8080 python server.py

Transport Modes

stdio Transport

Use case: Local integrations, Claude Desktop, command-line tools

How it works:

  • Server communicates via standard input/output

  • Spawned as a subprocess by the MCP client

  • No network configuration needed

Configuration example:

{ "mcpServers": { "multi-tool-server": { "command": "uv", "args": ["--directory", "/path/to/project", "run", "server.py"], "env": {} } } }

SSE Transport

Use case: Remote servers, web applications, HTTP-based clients

How it works:

  • Server runs as an HTTP server

  • Uses Server-Sent Events for real-time communication

  • Accessible via HTTP endpoints

Access URL:

http://localhost:8000/sse

Configuration example:

{ "mcpServers": { "multi-tool-server": { "type": "sse", "url": "http://localhost:8000/sse" } } }

Connecting to Claude Desktop

Step 1: Locate Configuration File

Windows:

%APPDATA%\Claude\claude_desktop_config.json

macOS:

~/Library/Application Support/Claude/claude_desktop_config.json

Linux:

~/.config/Claude/claude_desktop_config.json

Step 2: Get Your Project Path

# Windows PowerShell Get-Location # macOS/Linux pwd

Step 3: Add Server Configuration

Open claude_desktop_config.json and add:

{ "mcpServers": { "multi-tool-server": { "command": "uv", "args": [ "--directory", "/absolute/path/to/mcp-multi-tool-server", "run", "server.py" ], "env": { "TRANSPORT": "stdio" } } } }

Important:

  • Use absolute paths (not relative)

  • On Windows, use forward slashes / or escaped backslashes \\

  • Replace /absolute/path/to/mcp-multi-tool-server with your actual project path

Step 4: Restart Claude Desktop

Close and reopen Claude Desktop completely. All tools, resources, and prompts should now be available!

API Reference

Calculator Tools

add(a: float, b: float) -> float

Add two numbers together.

Example:

add(2, 3) # Returns: 5.0

subtract(a: float, b: float) -> float

Subtract the second number from the first.

Example:

subtract(10, 4) # Returns: 6.0

multiply(a: float, b: float) -> float

Multiply two numbers.

Example:

multiply(5, 6) # Returns: 30.0

divide(a: float, b: float) -> float

Divide the first number by the second.

Example:

divide(20, 4) # Returns: 5.0

Error: Raises ValueError if divisor is zero.

power(base: float, exponent: float) -> float

Raise a number to a power.

Example:

power(2, 8) # Returns: 256.0

square_root(number: float) -> float

Calculate the square root of a number.

Example:

square_root(16) # Returns: 4.0

Error: Raises ValueError if number is negative.

factorial(n: int) -> int

Calculate the factorial of a non-negative integer.

Example:

factorial(5) # Returns: 120 (5! = 5 Ɨ 4 Ɨ 3 Ɨ 2 Ɨ 1)

Error: Raises ValueError if n is negative.

calculate_percentage(part: float, whole: float) -> float

Calculate what percentage one number is of another.

Example:

calculate_percentage(25, 100) # Returns: 25.0 (25%)

Error: Raises ValueError if whole is zero.

Resources

typescript-sdk-mcp://documentation

Returns the full content of the TypeScript SDK MCP documentation markdown file.

Usage: Access this resource through your MCP client to retrieve the documentation.

Prompts

meeting_summary(meeting_date: str, meeting_title: str, transcript: str) -> list[dict]

Generate an executive meeting summary from a transcript.

Parameters:

  • meeting_date: Date of the meeting (e.g., "2025-01-15")

  • meeting_title: Title of the meeting

  • transcript: Full meeting transcript text

Returns: A formatted prompt message ready to send to an LLM.

Template: The prompt uses a template located at templates/meeting_summary/template.md with placeholders:

  • {{ meeting_date }}

  • {{ meeting_title }}

  • {{ transcript }}

Example Usage:

meeting_summary( meeting_date="2025-01-15", meeting_title="Q1 Planning Meeting", transcript="John: Let's discuss Q1 goals..." )

Project Structure

mcp-multi-tool-server/ ā”œā”€ā”€ .venv/ # Virtual environment ā”œā”€ā”€ templates/ ā”‚ ā””ā”€ā”€ meeting_summary/ ā”‚ ā””ā”€ā”€ template.md # Meeting summary prompt template ā”œā”€ā”€ __pycache__/ # Python cache ā”œā”€ā”€ server.py # Main server file ā”œā”€ā”€ pyproject.toml # Project configuration ā”œā”€ā”€ uv.lock # Dependency lock file ā”œā”€ā”€ README.md # This file ā”œā”€ā”€ Typerscript SDK MCP.md # Documentation resource ā”œā”€ā”€ claude_desktop_config.json.example # Example Claude Desktop config ā””ā”€ā”€ .gitignore # Git ignore rules

Testing

Test Calculator Tools

Create a test file test_server.py:

from server import ( add, subtract, multiply, divide, power, square_root, factorial, calculate_percentage ) # Test all tools assert add(2, 3) == 5.0 assert subtract(10, 4) == 6.0 assert multiply(5, 6) == 30.0 assert divide(20, 4) == 5.0 assert power(2, 8) == 256.0 assert square_root(16) == 4.0 assert factorial(5) == 120 assert calculate_percentage(25, 100) == 25.0 print("All tests passed!")

Run:

python test_server.py

Test Resource

from server import get_typescript_sdk_documentation content = get_typescript_sdk_documentation() print(content[:100]) # Print first 100 characters

Test Prompt

from server import meeting_summary result = meeting_summary( meeting_date="2025-01-15", meeting_title="Test Meeting", transcript="This is a test transcript." ) print(result)

Troubleshooting

Python Not Found

Problem: python --version returns "command not found"

Solution:

  • Windows: Reinstall Python with "Add Python to PATH" checked

  • macOS/Linux: Use python3 instead of python

uv Not Found

Problem: uv --version returns "command not found"

Solution:

  • Make sure you opened a new terminal after installation

  • Add ~/.cargo/bin (or %USERPROFILE%\.cargo\bin on Windows) to PATH

  • Restart terminal

Virtual Environment Issues

Problem: Can't activate virtual environment

Solution:

  • Windows PowerShell: Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser

  • Verify .venv folder exists: ls .venv (or dir .venv on Windows)

MCP Installation Fails

Problem: uv add "mcp[cli]" fails

Solution:

  • Ensure virtual environment is activated (you should see (.venv) in prompt)

  • Update uv: uv self update

  • Check Python version: python --version (should be 3.10+)

Server Won't Start

Problem: Server fails to start

Solution:

  • Verify virtual environment is activated

  • Check MCP is installed: uv pip list | grep mcp

  • Ensure server.py exists in current directory

Claude Desktop Connection Issues

Problem: Server doesn't appear in Claude Desktop

Solution:

  • Verify configuration file path is correct

  • Use absolute paths (not relative)

  • Check JSON syntax is valid

  • Ensure uv is in PATH or use full path

  • Restart Claude Desktop completely

  • Check Claude Desktop logs for errors

SSE Transport Issues

Problem: SSE server won't start

Solution:

  • Check if port is already in use: lsof -i :8000 (macOS/Linux) or netstat -ano | findstr :8000 (Windows)

  • Try a different port: PORT=8080 TRANSPORT=sse python server.py

  • Ensure firewall allows connections on the specified port

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

  1. Fork the repository

  2. Create your feature branch (git checkout -b feature/AmazingFeature)

  3. Commit your changes (git commit -m 'Add some AmazingFeature')

  4. Push to the branch (git push origin feature/AmazingFeature)

  5. Open a Pull Request

License

This project is provided as-is for educational and personal use.

Additional Resources

Support

If you encounter any issues or have questions:

  1. Check the Troubleshooting section

  2. Search existing GitHub Issues

  3. Create a new issue with:

    • Description of the problem

    • Steps to reproduce

    • Expected vs actual behavior

    • System information (OS, Python version, etc.)

Made with ā¤ļø using FastMCP and the Model Context Protocol

Deploy Server
A
security ā€“ no known vulnerabilities
F
license - not found
A
quality - confirmed to work

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