FastMCP Auth

🔐 Azure (Microsoft Entra ID) OAuth Authentication for FastMCP

This project provides OAuth 2.0 authentication for FastMCP servers, enabling secure access through Microsoft Entra ID (Azure AD). Built upon the FastMCP framework, this implementation seamlessly integrates enterprise-grade authentication into your MCP (Model Context Protocol) applications.

🌟 Features

• Microsoft Entra ID Integration: Full OAuth 2.0 support with Azure Active Directory
• FastMCP Compatible: Built specifically for the FastMCP framework
• Secure Token Validation: JWT token verification and validation
• Easy Integration: Simple authentication that can be added to existing FastMCP servers
• Enterprise Ready: Supports organizational authentication policies

🚀 Based on FastMCP

This implementation is based upon Azure (Microsoft Entra ID) OAuth 🤝 FastMCP integration available at: https://gofastmcp.com/integrations/azure

FastMCP is a powerful framework for building Model Context Protocol servers with enhanced performance and developer experience.

📦 Installation

pip install -r requirements.txt

🛠️ Configuration

1. Register your application in the Azure portal
2. Configure the OAuth 2.0 settings
3. Set up the required environment variables:
   • AZURE_CLIENT_ID
   • AZURE_CLIENT_SECRET
   • AZURE_TENANT_ID

🔧 Usage

Import and use the authentication in your FastMCP server:

from fastmcp_auth_middleware import FastMCPAuth

# Add authentication to your FastMCP server
auth = FastMCPAuth(
    client_id="your-client-id",
    tenant_id="your-tenant-id"
)

📝 Files

• server.py - Example FastMCP server with authentication
• simple_server.py - Basic server implementation (utilizes environment variables, so no explicit ones needed)
• client.py - Client example for testing authentication

🔗 Learn More

• FastMCP Official Site
• Azure FastMCP Integration
• Microsoft Entra ID Documentation
• Model Context Protocol Specification

📄 License

This project follows the FastMCP integration guidelines and is designed to work seamlessly with Azure enterprise environments.