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Domainintel MCP

Domain intelligence for agents: WHOIS, DNS, SSL/TLS, security headers, reputation, subdomains.

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Install Domainintel MCP

Pick your client, then add it in one click or paste the config.

STDIONode.js
~/Library/Application Support/Claude/claude_desktop_config.json
claude_desktop_config.json
{
  "mcpServers": {
    "domainintel-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@domainintel/mcp"
      ]
    }
  }
}

Settings → Developer → Edit Config, merge this into mcpServers, then fully quit and reopen Claude Desktop.

Automated check passed— started and listed 8 tools correctly (22d ago).

Overview

Tools8

What Domainintel MCP lets your agent do. Expand a tool for its parameters.

Verified live~862 tokens of context

Security & health

What it can reach and how reliably it runs — from our own checks, not the maintainer’s claims.

ActiveLast checked 1d ago

Recent health check succeeded.

19/21 checks healthy over the last 91d

What it can do

From the 8 tools this server returned when we ran it.

Makes network requests · 1Read-only tools · 8
Network at startup3 connections
Files written at startupNone
Install scriptsNone
npm provenanceNot published
Package age137 days
Maintainers1

Observed 2026-10-18 in an isolated sandbox. A description of reach, not a security audit.

Supply-chain signal

No high-severity advisories surfaced by our automated scan.

Critical 0High 0Medium 0Low 0

Scanned 6d ago via OSV.dev · @domainintel/mcp (npm)

Adoption & maintenance

Factual signals from GitHub, npm, and our automated checks — not a rating.

npm downloads169Package downloads in the last 30 days.
Last commit3mo agoMost recent push to the default branch.
Availability100%Our rolling endpoint + install checks that succeeded.
Install checkPassedOur sandbox started it and listed its tools.
Tools exposed8Callable tools this server registers over MCP.
Directory activity2 viewsConfig copies, upvotes, and views on AllMCPs.

From the project README

@domainintel/mcp

An MCP server that gives AI agents live domain intelligence: WHOIS, DNS, SSL/TLS, HTTP security headers, reputation, and subdomain discovery for any domain. It is the same analysis engine that powers DomainIntel.app.

Tools

ToolReturns
whois_lookupRegistrar, creation/expiry/updated dates, registrant country, privacy status, nameservers
dns_recordsA, AAAA, MX, TXT, NS, CNAME, CAA records + SPF/DMARC presence + misconfiguration warnings
ssl_certificateValidity, issuer, expiration, days remaining, protocol, warnings
security_headersHSTS, CSP, X-Frame-Options and others, scored with recommendations
domain_reputationDNSBL / Spamhaus blocklist checks and a reputation score
subdomain_discoverySubdomains via Certificate Transparency logs and common-prefix probing
full_domain_reportEvery analyzer at once plus an overall A+ to F security score
analyze_email_headersParses a raw email header block: SPF/DKIM/DMARC results, the Received delivery path with timing, key envelope fields, and a From-vs-Return-Path spoofing flag

Every tool except analyze_email_headers takes a single domain argument; protocol, www., and paths are stripped automatically. analyze_email_headers takes a headers string (a pasted raw header block) instead.

Requirements

  • Node.js 18 or newer

Install

Claude Code

Terminal
claude mcp add domainintel -- npx -y @domainintel/mcp

Claude Desktop

Add to claude_desktop_config.json (Settings → Developer → Edit Config):

config.json
{
  "mcpServers": {
    "domainintel": {
      "command": "npx",
      "args": ["-y", "@domainintel/mcp"]
    }
  }
}

Any other MCP client

The server speaks MCP over stdio:

Terminal
npx -y @domainintel/mcp

Example prompts

  • "Run a full domain report on stripe.com"
  • "What are the MX records for github.com, and does it have DMARC?"
  • "Is the SSL certificate for example.org close to expiring?"

Development

Run from source (no build needed):

bash
git clone <repo> && cd domainintel.app
npm install
npm run mcp        # node mcp/server.mjs

Building & publishing

The published package is a single self-contained bundle (the analyzers and all JS dependencies are bundled with esbuild; Node built-ins resolve at runtime).

Terminal
npm run build:mcp          # from repo root -> mcp/dist/server.mjs
cd mcp && npm publish       # prepublishOnly rebuilds the bundle

License

MIT

Read the full README View source on GitHub

Reviews

No reviews yet — be the first to share how it worked for you.

Frequently Asked Questions about Domainintel MCP

domainintel-mcp is an MCP server that provides AI agents with live domain intelligence for WHOIS, DNS, SSL/TLS, HTTP security headers, reputation, and subdomain discovery. It also offers full reports with an overall security score and parses raw email headers for SPF, DKIM, DMARC, delivery paths, and spoofing indicators.

Install domainintel-mcp with Node.js 18 or newer by running `npx -y @domainintel/mcp`. For Claude Code, use `claude mcp add domainintel -- npx -y @domainintel/mcp`; other MCP clients can connect to the server over stdio.

domainintel-mcp provides tools for WHOIS, DNS records, SSL certificates, HTTP security headers, domain reputation, subdomain discovery, and full domain reports. Its `analyze_email_headers` tool parses a pasted raw email header block instead of analyzing a domain.

Domain analysis tools accept one `domain` argument, while `analyze_email_headers` accepts a `headers` string containing a raw email header block. Protocols, `www.`, and paths are stripped automatically from domain inputs.

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