Skip to content

MCPSignIn - OAuth2 Authentication for MCP Servers

MCP SignIn is a secure OAuth2 authentication service specifically designed for Model Context Protocol (MCP) servers. It provides seamless authentication for MCP clients like Claude Desktop and ChatGPT, enabling secure server access through industry-standard OAuth2 flows. Our service supports multiple identity providers and provides a complete OAuth2 server implementation with dynamic client registration, token management, and user authentication.

Key Features

Complete OAuth2 Implementation

  • Full OAuth2 Authorization Code flow support
  • Dynamic client registration
  • JWT token generation and validation
  • JWKS (JSON Web Key Set) endpoint for token verification

Multiple Identity Providers

  • GitHub - Authenticate users with their GitHub accounts
  • Google - Support for Google OAuth2 authentication
  • Microsoft - Microsoft/Azure AD integration

Multi-Application Support

  • Manage multiple MCP server applications from a single dashboard
  • Isolated authentication flows per application
  • Custom redirect URIs and client configurations

Enterprise Security

  • Secure JWT token signing
  • User access control
  • CORS support for web applications

Management Dashboard

  • Web-based application management interface
  • Real-time client registration and configuration
  • User authentication monitoring
  • Application analytics and usage metrics