exposureguard-mcp

ExposureGuard is a domain security scanning platform that grades any domain A through F based on 8 automated checks: SPF, DMARC, SSL/TLS, HTTPS redirect…

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What it can do

  • Scan Domain: Run a comprehensive 8-point security audit on any domain. Checks SPF (email spoofing prevention), DMARC (email authentication policy), SSL/TLS certificate validity, HTTPS redirect enforce
  • Get Grade: Retrieve the most recent cached security grade for a domain without triggering a new scan. Returns the letter grade (A-F), numeric score (0-100), and timestamp of when the grade was last ca
  • Get Remediation: Get actionable, copy-paste fix instructions for every failing security check on a domain. Returns specific DNS TXT records to add (SPF, DMARC), server configuration snippets (Nginx, A

What data it sees

Do you need an account

No: the server works without sign-in

ExposureGuard is a domain security scanning platform that grades any domain A through F based on 8 automated checks: SPF, DMARC, SSL/TLS, HTTPS redirect, security headers, DNSSEC, open ports, and MX records. This MCP server exposes 4 tools for AI agents to scan domains, retrieve cached grades, get copy-paste remediation fixes, and discover third-party supply chain dependencies. Built for security teams, DevSecOps pipelines, and AI agents that need to vet domains before interacting with them.

How to connect

How to connect exposureguard-mcp to Claude

The server address to paste into Claude settings:

https://exposureguard-mcp--exposureguard.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect exposureguard-mcp to ChatGPT

The server address to paste into ChatGPT settings:

https://exposureguard-mcp--exposureguard.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect exposureguard-mcp to Cursor

The server address to paste into Cursor settings:

https://exposureguard-mcp--exposureguard.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (4)

Raw names from tools/list. Only developers need these.

scan_domainRun a comprehensive 8-point security audit on any domain. Checks SPF (email spoofing prevention), DMARC (email authentication policy), SSL/TLS certificate validity, HTTPS redirect enforcement, security headers (X-Frame-Options, Content-Security-Policy, Strict-Transport-Security, X-Content-Type-Options), DNSSEC (DNS integrity), open ports (exposed services on 21/22/23/25/80/443/3306/3389/5432/8080/8443), and MX records. Returns a letter grade A through F, numeric score 0-100, detailed per-check findings with pass/fail status, and a shareable report URL. Takes approximately 8 seconds. Use this when you need a fresh, comprehensive security assessment of a domain before interacting with it.
get_gradeRetrieve the most recent cached security grade for a domain without triggering a new scan. Returns the letter grade (A-F), numeric score (0-100), and timestamp of when the grade was last calculated. Results may be up to 24 hours old. Use this for quick lookups when you need a fast answer and don't require the freshest data — returns in under 200ms compared to ~8s for a full scan.
get_remediationGet actionable, copy-paste fix instructions for every failing security check on a domain. Returns specific DNS TXT records to add (SPF, DMARC), server configuration snippets (Nginx, Apache, Cloudflare) for security headers and HTTPS redirects, and step-by-step instructions for enabling DNSSEC. Each fix includes the exact record or config to apply and which provider/panel to use. Use this after a scan to give users concrete steps they can hand to their DNS provider or sysadmin.
get_dependenciesDiscover all third-party scripts, stylesheets, fonts, images, and iframes loaded by a domain's website. Returns each external resource with its type (script/stylesheet/image/iframe), host, and full URL. Useful for supply-chain risk assessment — reveals what external services the domain depends on and could be compromised through. Also useful for compliance audits and understanding a domain's technology stack.