MCP OAuth Sample

A sample MCP OAuth server implementation using Next.js, providing OAuth 2.1 authentication with Google and PostgreSQL.

GitHub

MCP OAuth Sample on Vercel and Analytics

A production-ready MCP (Model Context Protocol) OAuth 2.1 server implementation built with Next.js 15, providing secure authentication and analytics for MCP clients.

Overview

This project was built using run-llama/mcp-nextjs as a reference implementation and significantly enhanced to be fully compliant with the MCP Authorization Specification or here.

Key Enhancements

✅ OAuth 2.1 Compliance - Full implementation of MCP authorization specification
✅ OAuth Refresh Tokens - Automatic token refresh for seamless user experience
✅ DIY Analytics Dashboard - Real-time analytics with security monitoring
✅ Enhanced Security - Comprehensive threat detection and monitoring

Quick Start

# Install dependencies
pnpm install

# Setup environment variables (see docs/setup.md)
cp .env.example .env

# Setup database
pnpm prisma generate
pnpm prisma db push

# Start development server
pnpm dev

Screenshots

Dashboard

Dashboard

OAuth Usage Metrics

OAuth Usage

DIY Security Monitoring

Security Monitoring

MCP Clients Tools Usage

MCP Integration

Features

  • Complete OAuth 2.1 Server with PKCE and refresh token support
  • MCP Authorization Flow compliant with latest MCP specification
  • Analytics Dashboard with real-time security monitoring
  • Google Authentication integration via NextAuth.js
  • Dynamic Client Registration for seamless MCP client onboarding
  • Security Monitoring with threat detection and alerting
  • PostgreSQL Database with automated cleanup and TTL management

Documentation

📚 View Full Documentation - Interactive Material for MkDocs site

Local Documentation Development

# Serve documentation locally with hot reload
./docs-serve.sh

# Or on Windows
docs-serve.bat

# Manual setup
pip install -r requirements.txt
mkdocs serve

MCP Specification Compliance

We have attempted to implement all the mandatory requirements specified in the MCP Authorization Specification.

What Makes This Different

  • Discovery Endpoints - Proper RFC 8414 and RFC 9728 implementation
  • Resource Parameter Support - RFC 8707 Resource Indicators implementation
  • Token Audience Validation - Strict security boundary enforcement
  • Refresh Token Flow - OAuth 2.1 compliant token refresh
  • WWW-Authenticate Headers - Proper 401 response handling
  • Dynamic Client Registration - RFC 7591 support for MCP clients

Quick Links

  • Live Demo: mcp-oauth-sample.vercel.app (Analytics dashboard requires Gmail address allowlist)
  • Analytics Dashboard: /analytics (supports multiple Gmail addresses)
  • MCP Endpoints:
    • SSE: /mcp/sse
    • HTTP: /mcp/mcp
  • OAuth Discovery: /.well-known/oauth-authorization-server

MCP Client Integration

For Claude Desktop/Web

{
  "mcpServers": {
    "raxIT-oauth": {
      "url": "https://your-domain.com/mcp/sse",
      "transport": "sse"
    }
  }
}

For Cursor

{
  "mcpServers": {
    "raxIT-oauth": {
      "url": "https://your-domain.com/mcp/mcp", 
      "transport": "http-stream"
    }
  }
}

Contributing

We warmly welcome contributions from the community! This project is open source and we encourage developers to help make it even better.

Ways to Contribute

🐛 Report Bugs - Found an issue? Open a bug report
✨ Request Features - Have an idea? Submit a feature request
📝 Improve Documentation - Help make our docs clearer and more comprehensive
🔧 Submit Code - Fix bugs, add features, or improve performance
🧪 Add Tests - Help us increase test coverage and reliability
🎨 Enhance UI/UX - Make the analytics dashboard even better

Getting Started

  1. Fork the repository to your GitHub account
  2. Clone your fork: git clone https://github.com/your-username/mcp-oauth-sample.git
  3. Install dependencies: pnpm install
  4. Set up environment: Follow our Setup Guide
  5. Create a branch: git checkout -b feature/your-feature-name
  6. Make your changes and test thoroughly
  7. Commit: Use Conventional Commits format
  8. Push and create a Pull Request

Development Guidelines

  • Code Style: Follow existing patterns and use ESLint/Prettier
  • Testing: Add tests for new features and ensure existing tests pass
  • Documentation: Update relevant docs for any changes
  • Security: Follow security best practices, especially for OAuth flows
  • Performance: Consider analytics and monitoring impact

Community

All contributors are welcome! Whether you're fixing typos, adding major features, or helping with docs - every contribution matters. 🙏

License

This project is licensed under the Apache License 2.0 - see the LICENSE file for details.

Support

Built with ❤️ by raxIT AI

Based on run-llama/mcp-nextjs with enhancements to learn MCP authz.

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