The full upstream README, mirrored here for reference. Install config, tool schemas, adoption signals, and an original overview live on the Domainintel MCP listing page.
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.
| Tool | Returns |
|---|---|
whois_lookup | Registrar, creation/expiry/updated dates, registrant country, privacy status, nameservers |
dns_records | A, AAAA, MX, TXT, NS, CNAME, CAA records + SPF/DMARC presence + misconfiguration warnings |
ssl_certificate | Validity, issuer, expiration, days remaining, protocol, warnings |
security_headers | HSTS, CSP, X-Frame-Options and others, scored with recommendations |
domain_reputation | DNSBL / Spamhaus blocklist checks and a reputation score |
subdomain_discovery | Subdomains via Certificate Transparency logs and common-prefix probing |
full_domain_report | Every analyzer at once plus an overall A+ to F security score |
analyze_email_headers | Parses 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.
Add to claude_desktop_config.json (Settings → Developer → Edit Config):
The server speaks MCP over stdio:
Run from source (no build needed):
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).
MIT