Python Devs Build MCP-Powered Calculator Because

A Python-based MCP server calculator tool has been developed, utilizing the uv and mcp libraries. The tool requires Python 3.14 or higher, an IDE such as vscode, and Claude desktop as the MCP client. To set up the tool, users must create a new directory, activate a virtual environment, and install the necessary dependencies, including uv and mcp. The calculator tool is then defined in a main.py file, which includes functions for basic arithmetic operations such as addition, subtraction, multiplication, and division. The tool is installed and run using the uv command, and can be accessed through the Claude app. As of January 18, 2026, the tool has been successfully installed and tested, allowing users to perform arithmetic calculations through a conversational interface. This development demonstrates the potential for MCP servers to enable advanced functionality in applications, and highlights the growing importance of Python in the development of such tools.