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mcp/harbor
Cursor

storefront guard for Cursor

io.github.maxigirl123/storefront-guard

Verifies a merchant storefront is legitimate before an AI agent commits payment.

client:Cursor transport:stdio runtime:npm

Install storefront guard 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": {
    "storefront-guard": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "storefront-guard-mcp-server"
      ],
      "env": {
        "GOOGLE_SAFE_BROWSING_API_KEY": "<GOOGLE_SAFE_BROWSING_API_KEY>",
        "SAM_GOV_API_KEY": "<SAM_GOV_API_KEY>",
        "URLHAUS_AUTH_KEY": "<URLHAUS_AUTH_KEY>"
      }
    }
  }
}

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

storefront guard in other clients

storefront guard MCP server