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mcp/harbor
Cursor

MCP Hangar for Cursor

io.mcp-hangar/hangar

Policy enforcement plane for MCP: every tool call ends in a verdict. Self-hosted, MIT.

client:Cursor transport:stdio runtime:pypi

Install MCP Hangar in Cursor

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

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "hangar": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mcp-hangar"
      ],
      "env": {
        "MCP_CONFIG": "<MCP_CONFIG>"
      }
    }
  }
}

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

MCP Hangar in other clients

MCP Hangar MCP server