Imperium MCP Security — Prompt-Injection, Jailbreak & Tool Poisoning Firewall for Cursor

dev.agentdiet/mcp-security

Real-time MCP & A2A prompt-injection, jailbreak, and tool-schema poisoning firewall for AI agents.

client:Cursor transport:streamable-http tools:2

Install Imperium MCP Security — Prompt-Injection, Jailbreak & Tool Poisoning Firewall in Cursor

~/.cursor/mcp.json · windows: %USERPROFILE%\.cursor\mcp.json

{
  "mcpServers": {
    "mcp-security": {
      "url": "https://mcp-security.agentdiet.dev/mcp"
    }
  }
}

Use .cursor/mcp.json in a project root instead to scope it to that project. Cursor merges both. Cursor docs