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Domain & Company

Qualify a domain or company in one call — registration (RDAP), DNS, email deliverability, tech stack and subdomains. No API key.

terminal
$ claude mcp add --transport http domain-intel https://domain.datakoot.com/mcp
Endpoint: domain.datakoot.com/mcp6 toolsSources: RDAP · DNS · CT logsKeyless
The tools

Everything this server exposes.

The exact tools your agent sees, with their real parameters and the shape of what comes back. Descriptions are written for the model, so it knows when to call each one on its own.

domain_reportSource: combined

One-call dossier — registration (RDAP), DNS, email deliverability and tech stack combined. Fast lead qualification or recon without four separate calls.

Parameters
domainstringrequired
Domain name, e.g. stripe.com.
domain_report("stripe.com")
{
  "domain": "stripe.com",
  "registrar": "MarkMonitor Inc.",
  "ageYears": 15,
  "mx": true,
  "spf": true,
  "dmarc": "reject",
  "stack": [
    "Ruby on Rails",
    "Cloudflare"
  ]
}
domain_intelSource: RDAP

Registration intelligence via RDAP (the modern WHOIS) — registrar, creation/expiration dates, domain age, EPP status, nameservers, DNSSEC and abuse contact.

Parameters
domainstringrequired
Domain name (no scheme).
domain_intel("stripe.com")
{
  "domain": "stripe.com",
  "registrar": "MarkMonitor Inc.",
  "created": "2010-08-20",
  "expires": "2027-08-20",
  "ageYears": 15,
  "dnssec": false
}
dns_lookupSource: Cloudflare DoH

DNS records via Cloudflare DNS-over-HTTPS — A, AAAA, MX, NS, TXT, CNAME, SOA. See where a domain is hosted and who runs its mail.

Parameters
domainstringrequired
Domain name.
typesarrayoptional
Subset of record types, e.g. ["MX","TXT"].
dns_lookup("stripe.com",["MX"])
{
  "domain": "stripe.com",
  "MX": [
    {
      "priority": 10,
      "host": "aspmx.l.google.com"
    }
  ]
}
email_deliverabilitySource: DNS

Can a domain receive mail, and how strong is its sender authentication — MX presence, SPF and DMARC policy, plus free-provider and disposable checks.

Parameters
domain_or_emailstringrequired
A domain or an email address.
email_deliverability("stripe.com")
{
  "domain": "stripe.com",
  "mx": true,
  "spf": true,
  "dmarc": "reject",
  "freeProvider": false,
  "disposable": false
}
tech_stackSource: live fetch

Fingerprint the tech behind a site — web server, CMS/framework, CDN and analytics — plus page title and final URL.

Parameters
domainstringrequired
Domain name.
tech_stack("stripe.com")
{
  "domain": "stripe.com",
  "title": "Stripe | Payments",
  "server": "Cloudflare",
  "frameworks": [
    "Ruby on Rails"
  ],
  "cdn": "Cloudflare"
}
subdomainsSource: CT logs (crt.sh)

Discover subdomains from public Certificate Transparency logs — map a company's public surface (app., api., staging.).

Parameters
domainstringrequired
Domain name.
subdomains("stripe.com")
{
  "domain": "stripe.com",
  "count": 42,
  "subdomains": [
    "api.stripe.com",
    "dashboard.stripe.com",
    "files.stripe.com"
  ]
}
Data sources

Public infrastructure data.

Registration, DNS, mail and certificate data straight from the systems that run the internet — nothing scraped from resellers.

RDAP

The modern WHOIS — authoritative registration data behind domain_intel.

Cloudflare DNS-over-HTTPS

Live DNS records for dns_lookup and the deliverability checks.

Certificate Transparency (crt.sh)

Public CT logs behind subdomains.

Connect it

One line, any MCP client.

Same endpoint everywhere. No account, no key, no config file.

Claude
claude mcp add --transport http domain-intel https://domain.datakoot.com/mcp
Cursor
Settings → MCP → Add → https://domain.datakoot.com/mcp
Windsurf
Add MCP server → https://domain.datakoot.com/mcp
Companion extension

Prefer to look it up yourself?

The matching Chrome extension puts the same data in your browser — no agent required.

Domain X-ray

X-ray any site's registration, DNS, email setup and tech stack from your browser — the same data as the server. Free, keyless, no signup.

Get the extension →
Domain & Company — FAQ

Questions about this server

Any public domain — registration, DNS, email deliverability, tech stack and subdomains, individually or as one combined report.

It uses RDAP, the modern replacement for WHOIS, plus live DNS and Certificate Transparency logs.

No — one keyless line; Datakoot handles the RDAP, DNS and CT calls.

Qualify any domain in one call.

Free to start. One line. No key to leak.

Start freeBack to all servers