🧲 Magg - The MCP Aggregator
A Model Context Protocol server that manages, aggregates, and proxies other MCP servers, enabling LLMs to dynamically extend their own capabilities.
What is Magg?
Magg is a meta-MCP server that acts as a central hub for managing multiple MCP servers. It provides tools that allow LLMs to:
- Search for new MCP servers and discover setup instructions
- Add and configure MCP servers dynamically
- Enable/disable servers on demand
- Aggregate tools from multiple servers under unified prefixes
- Persist configurations across sessions
Think of Magg as a "package manager for LLM tools" - it lets AI assistants install and manage their own capabilities at runtime.
Features
- Self-Service Tool Management: LLMs can search for and add new MCP servers without human intervention.
- Dynamic Configuration Reloading: Automatically detects and applies config changes without restarting.
- Automatic Tool Proxying: Tools from added servers are automatically exposed with configurable prefixes.
- ProxyMCP Tool: A built-in tool that proxies the MCP protocol to itself, for clients that don't support notifications or dynamic tool updates (which is most of them currently).
- Smart Configuration: Uses MCP sampling to intelligently configure servers from just a URL.
- Persistent Configuration: Maintains server configurations in
.magg/config.json. - Multiple Transport Support: Works with stdio, HTTP, and in-memory transports.
- Bearer Token Authentication: Optional RSA-based JWT authentication for secure HTTP access.
- Docker Support: Pre-built images for production, staging, and development workflows.
- Health Monitoring: Built-in
magg_statusandmagg_checktools for server health checks. - Real-time Messaging: Full support for MCP notifications and messages - receive tool/resource updates and progress notifications from backend servers.
- Python 3.12+ Support: Fully compatible with Python 3.12 and 3.13.
- Kit Management: Bundle related MCP servers into kits for easy loading/unloading as a group.
- MBro CLI: Included MCP Browser for interactive exploration and management of MCP servers, with script support for automation.
