Custom MCP Server
by JustVarunsai
This tutorial guides you through building a custom MCP server, specifically a simple calculator server, and connecting it to Claude for Desktop. MCP allows developers to extend AI assistants with custom tools and servers.
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What is Custom MCP Server?
MCP (Model Context Protocol) is a protocol that enables developers to extend AI assistants like Claude with custom tools and servers, providing them with extra functionalities.
How to use Custom MCP Server?
The server is built using Python and the MCP SDK. After setting up the environment and installing dependencies, you implement the desired tools (e.g., add, subtract, multiply, divide) using the MCP SDK. The server is then configured in Claude for Desktop to be accessible as a tool.
Key features of Custom MCP Server
Extends AI assistant capabilities
Supports resources, tools, and prompts
Enables custom functionalities
Uses Python and MCP SDK
Use cases of Custom MCP Server
Building calculator servers
Creating weather servers
Developing finance assistants
Implementing custom tools for AI assistants
FAQ from Custom MCP Server
What is MCP?
What is MCP?
MCP stands for Model Context Protocol, a protocol that allows developers to extend AI assistants with custom tools and servers.
What are the core capabilities of MCP servers?
What are the core capabilities of MCP servers?
MCP servers can provide resources, tools, and prompts.
What is required to run this server?
What is required to run this server?
Python 3.10 or higher and the Python MCP SDK 1.2.0 or higher are required.
Where can I find the complete code for the calculator server?
Where can I find the complete code for the calculator server?
The complete code can be found at https://github.com/varunidealabs/simple-calculator-mcp-server.git
Can MCP servers connect to any client?
Can MCP servers connect to any client?
Servers can connect to any client, but the tutorial uses Claude for Desktop for demonstration purposes. MCP currently only supports desktop hosts.