basic-mcp

basic-mcp

A Model Context Protocol server that exposes tools and resources for fetching GitHub user profiles and weather data, with a React interface and clean architecture.

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README

basic-mcp

Un serveur MCP (Model Context Protocol) avec une interface React, exposant des outils et ressources autour des utilisateurs GitHub et de la météo.

Structure du projet

basic-mcp/
├── server/          # Serveur MCP (Node.js / TypeScript)
│   ├── main.ts      # Point d'entrée — transport stdio
│   ├── server-http.ts # Point d'entrée — transport HTTP (Streamable HTTP)
│   └── src/
│       ├── application/   # Cas d'usage (GetGitHubUser, GetWeather)
│       ├── domain/        # Entités et ports (interfaces)
│       ├── infrastructure/ # Implémentations des repositories
│       └── interface/mcp/ # Outils et ressources MCP exposés
└── client/          # Interface React + Vite
    └── src/
        ├── application/hooks/  # useMcpTool, useMcpResource
        ├── domain/             # Entités côté client
        ├── infrastructure/mcp/ # Adaptateur MCP client
        └── presentation/       # Composants React

Prérequis

  • Node.js >= 18
  • npm >= 9

Installation

npm install
cd client && npm install

Démarrage

Serveur seul (stdio)

npm run start

Serveur HTTP (port 3001)

npm run start:http

Serveur HTTP + Interface React

npm run start:ui

L'interface est accessible sur http://localhost:5173.
Le serveur MCP HTTP écoute sur http://localhost:3001/mcp.

Outils MCP disponibles

Outil Description
ping Vérifie que le serveur répond
get-github-user Retourne les infos d'un utilisateur GitHub
get-weather Retourne la météo pour une latitude/longitude

Ressources MCP disponibles

URI Description
github-user://{username} Profil GitHub d'un utilisateur
weather://{lat},{lon} Météo pour des coordonnées GPS

Architecture

Le projet suit les principes de la Clean Architecture :

  • Domain — entités et interfaces de ports (aucune dépendance externe)
  • Application — cas d'usage orchestrant la logique métier
  • Infrastructure — appels HTTP aux APIs externes (GitHub, Open-Meteo)
  • Interface — exposition via le protocole MCP

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