MCP Hub

MCP Hub acts as a central coordinator for MCP servers and clients, providing two key interfaces:

1. Management Interface (/api/*): Manage multiple MCP servers through a unified REST API and web UI
2. MCP Server Interface (/mcp): Connect ANY MCP client to access ALL server capabilities through a single endpoint

This dual-interface approach means you can manage servers through the Hub's UI while MCP clients (Claude Desktop, Cline, etc.) only need to connect to one endpoint (localhost:37373/mcp) to access all capabilities. Implements MCP 2025-03-26 specification.

Feature Support

Category	Feature	Support	Notes
Transport
	streamable-http	✅	Primary transport protocol for remote servers
	SSE	✅	Fallback transport for remote servers
	STDIO	✅	For running local servers
Authentication
	OAuth 2.0	✅	With PKCE flow
	Headers	✅	For API keys/tokens
Capabilities
	Tools	✅	List tools
	🔔 Tool List Changed	✅	Real-time updates
	Resources	✅	Full support
	🔔 Resource List Changed	✅	Real-time updates
	Resource Templates	✅	URI templates
	Prompts	✅	Full support
	🔔 Prompts List Changed	✅	Real-time updates
	Roots	❌	Not supported
	Sampling	❌	Not supported
	Completion	❌	Not supported
Marketplace
	Server Discovery	✅	Browse available servers
	Installation	✅	Auto configuration
Real-time
	Status Updates	✅	Server & connection state
	Capability Updates	✅	Automatic refresh
	Event Streaming to clients	✅	SSE-based
	Auto Reconnection	✅	With backoff
Development
	Hot Reload	✅	Auto restart a MCP server on file changes with dev mode
Configuration
	${} Syntax	✅	Environment variables and command execution across all fields
	VS Code Compatibility	✅	Support for servers key, ${env:}, ${input:}, predefined variables
	JSON5 Support	✅	Comments and trailing commas in configuration files

Simplified Client Configuration

Configure all MCP clients with just one endpoint:

{
    "mcpServers" : {
        "Hub": {
            "url" : "http://localhost:37373/mcp"  
        }
    }
}

The Hub automatically:

• Namespaces capabilities to prevent conflicts (e.g., filesystem__search vs database__search)
• Routes requests to the appropriate server
• Updates capabilities in real-time when servers are added/removed
• Handles authentication and connection management

Key Features

• Unified MCP Server Endpoint (/mcp):

  • Single endpoint for ALL MCP clients to connect to
  • Access capabilities from all managed servers through one connection
  • Automatic namespacing prevents conflicts between servers
  • Real-time capability updates when servers change
  • Simplified client configuration - just one endpoint instead of many

• Dynamic Server Management:

  • Start, stop, enable/disable servers on demand
  • Real-time configuration updates with automatic server reconnection
  • Support for local (STDIO) and remote (streamable-http/SSE) MCP servers
  • Health monitoring and automatic recovery
  • OAuth authentication with PKCE flow
  • Header-based token authentication

• Unified REST API:

  • Execute tools from any connected server
  • Access resources and resource templates
  • Real-time status updates via Server-Sent Events (SSE)
  • Full CRUD operations for server management

• Real-time Events & Monitoring:

  • Live serv

... View full README on GitHub