MCP-Agent

A modular AI agent powered by MCP (Multi-Client Protocol) servers, capable of performing math calculations, fetching weather data, and executing multiple tool-based tasks via natural language commands.

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Features

• Math Server: Supports addition, subtraction, multiplication, division, and evaluation of complex math expressions.
• Weather Server: Fetches current weather data for any location.
• Multi-Tool Agent: Combines multiple MCP servers into a single AI agent using LangChain and ReAct architecture.
• Flexible Transport: Supports both stdio (for local Python servers) and streamable_http (for web servers).

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Installation

1. Clone the repository:

git clone https://github.com/<your-username>/mcp-agent.git
cd mcp-agent

2. Create a virtual environment:

python -m venv venv
source venv/bin/activate  # On Windows: venv\Scripts\activate

3. Install dependencies:

pip install -r requirements.txt

4. Setup environment variables:

• Create a .env file in the root directory:

OPENAI_API_KEY=your_openai_api_key_here

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Usage

Start the MCP Servers

Math Server:

python mathserver.py

Weather Server:

python weather_server.py

Run the Client

python client.py

Example queries:

What's (3 + 5) * 12?
What is the weather in California?

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Folder Structure

├── .env.example
├── .gitignore
├── README.md
├── client.py
├── main.py
├── mathserver.py
├── pyproject.toml
├── uv.lock
└── weather.py

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Example Output

Math response: 96
Weather response: Currently sunny in California, 25°C

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License

This project is licensed under the MIT License. See the LICENSE file for details.

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Future Improvements

• Add Notes / Knowledge Base MCP for remembering information.
• Add File Manager MCP for reading/writing local files.
• Add Code Runner MCP for executing Python/JS snippets safely.
• Expand to scientific math functions (log, sqrt, power).