domain-intel-mcp
Domain & company intelligence MCP server for AI agents: RDAP registration, DNS, email deliverability, tech-stack fingerprinting, subdomain discovery. Zero API keys. Dependency-free Cloudflare Worker.
Documentation
Domain & Company Intel MCP — by Datakoot
Domain and company intelligence for AI agents. Give an agent a domain or email address and it can vet the company, qualify the lead, or map the target — all from free public data, no API keys.
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.
Quick start (hosted)
Claude Code
claude mcp add --transport http domain-intel https://domain.datakoot.com/mcpClaude Desktop / other clients
{
"mcpServers": {
"domain-intel": {
"command": "npx",
"args": ["mcp-remote", "https://domain.datakoot.com/mcp"]
}
}
}Example agent workflows
- *"Is acme.com a real, established business? When was it registered?"* → `domain_intel`
- *"This lead’s email is @acme.io — can it receive mail, is it a throwaway?"* → `email_deliverability`
- *"What’s competitor.com built on?"* → `tech_stack`
- *"Map the public subdomains of target.com"* → `subdomains`
Pricing
| Free | Pro | Team | |
|---|---|---|---|
| Price | $0 | $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 | $5 per 1,000 |
| Most you can ever be billed | $0 | $115/mo | $149/mo |
| Result lists | capped at 10 items per call | uncapped | uncapped |
| Signup | none, no key | email + card | 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
**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:
claude mcp add --transport http --header "Authorization: Bearer YOUR-KEY" domain-intel https://domain.datakoot.com/mcpThe key is validated against Polar on each request (cached briefly). Cancel anytime — access reverts to the free tier automatically.
Self-host (Cloudflare Workers, free tier)
The `worker.js` in this repository is a snapshot of the hosted server, not a live mirror of it — the hosted endpoint is deployed independently and may be ahead. Create a Worker, paste `worker.js`, deploy.
License
MIT. Data from RDAP, Cloudflare DNS, and crt.sh under their respective terms.
Frequently asked questions
What is domain-intel-mcp?
domain-intel-mcp is Domain & company intelligence MCP server for AI agents: RDAP registration, DNS, email deliverability, tech-stack fingerprinting, subdomain discovery. Zero API keys. Dependency-free Cloudflare Worker.
How do I install domain-intel-mcp?
Open the GitHub repository and follow its README. Most MCP servers are added to your client's MCP config, then called by your agent.
Is domain-intel-mcp open source?
Yes — it is hosted on GitHub at https://github.com/datakoot/domain-intel-mcp.
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