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Security headers check

An MCP tool from the Web and Network server, hosted on mcp.hjlabs.in.

Grade a site's HTTP security headers (HSTS, Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, plus leaks like Server and X-Powered-By) with an A–F grade and a concrete fix for each finding.

Name on the gateway: web__security_headers_check · read-only.

Parameters

NameTypeDescription
url requiredstringFull URL of the page to check.

How to call it

Through the Smart Gateway, any client can run it by name with call_tool, or let the gateway find it with search_tools:

call_tool arguments
{
  "name": "web__security_headers_check",
  "arguments": {
    "url": "…"
  }
}

Or connect the Web and Network server directly, which lists 22 tools including this one:

Run in your terminal
claude mcp add --transport http hj-web https://mcp.hjlabs.in/mcp/web \
  --header "Authorization: Bearer YOUR_API_KEY"

Try asking

Use the security headers check tool with url set to ….

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