Know who is behind
any domain

Give your AI agent domain and company intelligence: vet a lead, research a competitor, or map a target — all from free public data, no API keys.

Listed in the Official MCP Registry · Open source (MIT) · No install required
Add to your agent →View source

Five checks, one endpoint

Everything an agent needs to size up a domain or company.

domain_intel

Registrar, creation/expiry dates, domain age, status, nameservers, DNSSEC — how established is this company?

Source: RDAP

dns_lookup

A, AAAA, MX, NS, TXT, CNAME, SOA records — where a domain is hosted and who runs its mail.

Source: Cloudflare DoH

email_deliverability

MX presence, SPF/DMARC posture, free vs. disposable provider, verdict — qualify leads, flag throwaways.

Source: DNS

tech_stack

Web server, CMS/framework, CDN, analytics, security headers — what a site is built on.

Source: Live fetch

subdomains

Subdomain discovery from Certificate Transparency logs — map a company public surface.

Source: crt.sh

Quick start

Hosted endpoint, nothing to install.

Claude Code

claude mcp add --transport http domain-intel https://domain-intel-mcp.greenfield1775.workers.dev/mcp

Then try

"Is acme.com a real, established business?"
"This lead is @acme.io — can it receive mail, is it a throwaway?"
"What is competitor.com built on?"

Pricing

Free tier fully functional with fair-use caps. Upgrade for uncapped results across the SelfLabbs suite.

Free

$0/mo
  • All five tools
  • Results capped at 10 items
  • Hosted endpoint
  • Community support

Builder

$19/mo
  • Uncapped results
  • 5,000 tool calls/mo
  • Priority endpoint
  • Email support
    • Subscribe →

Team

$49/mo
  • Uncapped results
  • 25,000 tool calls/mo
  • Usage dashboard
  • SLA
    • Subscribe →
One key, both servers. A SelfLabbs subscription unlocks pro on this and the Security Intel server. Self-host free on Cloudflare — GitHub.