MCPProxy.app: Supercharge AI Agents, Safely
MCPProxy.app is the Open Source Smart Proxy for AI Agents Works with any MCP-compatible client: Cursor IDE, Claude Desktop, ChatGPT, and more.
A desktop application that extends AI-agent productivity by connecting hundreds of MCP servers with intelligent tool discovery, token optimization, and advanced security quarantine protection.
✨ Works offline • 🖥️ User-friendly desktop app • 🔓 100% Open Source
System Tray - Upstream Servers System Tray - Quarantine Management
Quick Start
- Install DMG Download and install the DMG package above. Launch MCPProxy from Launchpad or Applications folder—it will run quietly in your system tray.
- Add into your client (Cursor IDE, Claude Desktop, ...)
One-click install into Cursor IDE
How MCPProxy Works
MCPProxy acts as an intelligent federating gateway, consolidating multiple MCP servers behind a single smart endpoint with built-in security and optimization.
1 Server Discovery MCPProxy automatically discovers and indexes tools from all configured upstream MCP servers, building a comprehensive searchable catalog.
2 Intelligent Search When AI agents need tools, they query MCPProxy with natural language. BM25 search returns the most relevant tools from the entire catalog.
3 Security Review New servers are automatically quarantined for security analysis. Tool Poisoning Attack detection prevents malicious code execution.
4 Optimized Execution Tool calls are routed to appropriate upstream servers with response truncation and caching to prevent LLM context bloat.
Server Config
{
"mcpServers": {
"mcpproxy_app": {
"type": "http",
"url": "http://localhost:8080/mcp/"
}
}
}