Installation Guide

Adding MCP to your python project

Installation with uv (recommended)

We recommend using uv to manage your Python projects.

Installing from pyproject.toml RECOMENDED

If you prefer to manage your dependencies using pyproject.toml, you can add all libraries to your project:

uv sync

Installing manually

If you haven't created a uv-managed project yet, create one:

uv init mcp-server-demo
cd mcp-server-demo

Then add MCP to your project dependencies:

uv add "mcp[cli]"

Alternatively, for projects using pip for dependencies:

pip install "mcp[cli]"

Testing the installation

1. Make sure you activate your virtual environment if you're using one.

2. Run de client.py file provided

python client.py

Running the standalone MCP development tools

To run the mcp command with uv:

uv run mcp

MCP Inspector

The MCP inspector is a developer tool for testing and debugging MCP servers.

Related MCP server: MCP Server Deepdive

Architecture Overview

The MCP Inspector consists of two main components that work together:

• MCP Inspector Client (MCPI): A React-based web UI that provides an interactive interface for testing and debugging MCP servers

• MCP Proxy (MCPP): A Node.js server that acts as a protocol bridge, connecting the web UI to MCP servers via various transport methods (stdio, SSE, streamable-http)

Note that the proxy is not a network proxy for intercepting traffic. Instead, it functions as both an MCP client (connecting to your MCP server) and an HTTP server (serving the web UI), enabling browser-based interaction with MCP servers that use different transport protocols.

Running the Inspector

Requirements

• Node.js: ^22.7.5

Quick Start (UI mode)

To get up and running right away with the UI, just execute the following:

npx @modelcontextprotocol/inspector

The server will start up and the UI will be accessible at http://localhost:6274.

From an MCP server repository

To inspect an MCP server implementation, there's no need to clone this repo. Instead, use npx. For example, if your server is built at build/index.js:

npx @modelcontextprotocol/inspector node build/index.js

For python server with uv:

npx @modelcontextprotocol/inspector uv run main.py