Domain & Company Intel MCP (io.github.selflabbs/domain-intel-mcp)

This MCP server provides domain and company intelligence for AI agents using free public data without API keys. It supports validating a domain or email address and retrieving registration, DNS, and email deliverability information sourced from RDAP and Cloudflare DoH.

🛠️ Key Features

domain_intel: RDAP-based registrar and domain metadata (creation/expiry dates, domain age, EPP status, nameservers, DNSSEC, abuse contact)
dns_lookup: DNS record retrieval for A, AAAA, MX, NS, TXT, CNAME, and SOA (Cloudflare DoH)
email_deliverability: MX presence, SPF/DMARC posture, provider classification (free vs. disposable), and verdict
Tool count: 6
Topics include: ai-agents, ai-tools, claude, dns, domain-intelligence, llm, mcp, model-context-protocol, osint

🚀 Use Cases

Vetting a company from a domain
Qualifying a lead using domain or email address checks
Mapping a target by combining registration, DNS, and email signals

⚡ Developer Benefits

Works for agent workflows focused on RDAP and DNS-derived signals
Avoids API keys by relying on free public data sources (RDAP, Cloudflare DoH)
Structured outputs via dedicated tools for domain, DNS, and deliverability

⚠️ Limitations

Tool operations are limited to RDAP- and Cloudflare DoH-sourced public data as described in the provided excerpt
Only the listed tool capabilities (domain_intel, dns_lookup, email_deliverability) are supported based on the available information

{ "type": "object", "properties": { "domain": { "type": "string", "description": "Domain name, e.g. stripe.com" }, "types": { "type": "array", "items": { "type": "string" }, "description": "Optional subset of record types, e.g. [\"MX\",\"TXT\"]. Defaults to all common types." } }, "required": [ "domain" ] }

{ "type": "object", "properties": { "domain_or_email": { "type": "string", "description": "A domain (stripe.com) or an email address (a@stripe.com)" } }, "required": [ "domain_or_email" ] }

Tools

Tool

What it does

Source

domain_intel

Registrar, creation/expiry dates, domain age, EPP status, nameservers, DNSSEC, abuse contact

RDAP

dns_lookup

A, AAAA, MX, NS, TXT, CNAME, SOA records

Cloudflare DoH

email_deliverability

MX presence, SPF/DMARC posture, free vs. disposable provider, verdict

Cloudflare DoH

tech_stack

Web server, CMS/framework, CDN, analytics, security headers, page title

Live fetch

subdomains

Subdomain discovery from Certificate Transparency logs

crt.sh

domain_report

One call returns a full dossier: registration + DNS + email deliverability + tech stack, combined

all-in-one

No API keys required for any tool.

Pricing

Free

Pro

Team

Price

$15/mo

$49/mo

Calls included

100 per day

10,000 per month

50,000 per month

Past the allowance

refused until 00:00 UTC

$5 per 1,000

Most you can ever be billed

$115/mo

$149/mo

Result lists

capped at 10 items per call

uncapped

Signup

none, no key

email + card

All six tools work on the free tier with no key. A paid allowance is shared across all nine Datakoot servers rather than being nine separate buckets, and only a tools/call counts — connecting and listing tools are free. Full terms at datakoot.com/pricing.

Subscribe → — one subscription unlocks Pro on every Datakoot server.

Using your Pro key

After subscribing you receive a licence key. Pass it as a Bearer token and the free-tier caps are removed:

bash

claude mcp add --transport http --header "Authorization: Bearer YOUR-KEY" domain-intel https://domain.datakoot.com/mcp

The key is validated against Polar on each request (cached briefly). Cancel anytime — access reverts to the free tier automatically.

Install

Tools (6)

domain_reportdomain_inteldns_lookupemail_deliverabilitytech_stacksubdomains

Remote endpoint

Streamable HTTP

Hosted server - connect over the network, no local install.

url

https://domain.selflabbs.com/mcp

Add to VS Code Add to Cursor

claude_desktop_config.json

json

{
  "mcpServers": {
    "domain-intel-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://domain.selflabbs.com/mcp"
      ]
    }
  }
}

Desktop config is stdio-only; this bridges via mcp-remote. Native remote: Settings > Connectors.

Domain & Company Intel MCP