Storefront Guard

io.github.maxigirl123/storefront-guard · v0.3.2

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

Source code Set it up

Connect Runs on your machine

Terminal

claude mcp add storefront-guard -e GOOGLE_SAFE_BROWSING_API_KEY=<GOOGLE_SAFE_BROWSING_API_KEY> -e SAM_GOV_API_KEY=<SAM_GOV_API_KEY> -e URLHAUS_AUTH_KEY=<URLHAUS_AUTH_KEY> -- npx -y [email protected]

claude_desktop_config.json

{
  "mcpServers": {
    "storefront-guard": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "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>"
      }
    }
  }
}

~/.cursor/mcp.json

{
  "mcpServers": {
    "storefront-guard": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "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>"
      }
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "storefront-guard": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "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>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

Name	Description
`GOOGLE_SAFE_BROWSING_API_KEY` Optional, secret	Google Safe Browsing API key for scam domain checks. Optional — degrades gracefully if not set.
`SAM_GOV_API_KEY` Optional, secret	SAM.gov API key for US federal exclusions check. Optional — skipped if not set.
`URLHAUS_AUTH_KEY` Optional, secret	URLhaus Auth-Key for malware URL lookups. Optional — degrades gracefully if not set.

Details

Package	`[email protected]` (NPM, stdio)
First published	31 Aug 2026
Last updated	31 Aug 2026
Registry name	`io.github.maxigirl123/storefront-guard`

More finance and crypto servers See all

Live status

Local install

Installed and run on your own machine, so there is no public endpoint to check.

Pair it with live search

Agents that use Storefront Guard often also need current facts. NestDaddy MCP gives your AI today's internet: web search, real-time breaking news and full page reading in one connector.

See NestDaddy MCP

For maintainers

[![NestDaddy MCP](https://nestdaddy.com/mcp/servers/io-github-maxigirl123-storefront-guard/badge.svg)](https://nestdaddy.com/mcp/servers/io-github-maxigirl123-storefront-guard)

Add the badge to your README. It turns green while your server passes our daily check. Listing details come from the official MCP registry; update them there.

Listing data from the official MCP registry. Status and tools from NestDaddy's daily check. Browse all MCP servers.