MetaMCP

MetaMCP is a powerful MCP proxy that lets you dynamically aggregate MCP servers into a unified MCP server and apply middlewares. It functions as an MCP Aggregator, Orchestrator, Middleware, and Gateway all in one Docker container.

Key Features

• MCP Aggregation: Group MCP servers into namespaces and host them as meta-MCPs
• Public Endpoints: Assign public endpoints (SSE or Streamable HTTP) with authentication
• Tool Selection: Pick only the tools you need when remixing MCP servers
• Pluggable Middleware: Apply middleware for observability and security
• Enhanced Inspector: Use as MCP inspector with saved server configs

Usage

• Open MetaMCP at https://${PUBLIC_DOMAIN}
• Login and configure your MCP servers
• The default PostgreSQL credentials are provided in the service instructions

Configuration

• DATABASE_URL: PostgreSQL connection string (auto-configured)
• APP_URL: Public URL of the application
• BETTER_AUTH_SECRET: Authentication secret key
• Optional OIDC configuration available through environment variables

Documentation

• Official docs: https://docs.metamcp.com
• GitHub: https://github.com/metatool-ai/metamcp