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DNS Security

IntoDNS.ai MCP Server: Scan Domains Directly from Claude and Other AI Assistants

IntoDNS.aiApril 20, 2026
IntoDNS.ai MCP server connecting Claude to DNS and email security scanning

DNS security scanning, now inside your AI assistant

You can now use IntoDNS.ai directly from Claude, Cursor, Windsurf, and any other AI assistant that supports the Model Context Protocol (MCP). Ask your AI to check a domain — it runs a live scan and explains the findings, without switching tabs or copy-pasting.

The intodns-mcp package is free, requires no API key, and installs in one line.

What you can do

The MCP server exposes five tools that map directly to the IntoDNS.ai API:

  • scan_domain — full DNS & email security scan with grade (A+ to F) and 50+ checks
  • check_email_security — SPF, DKIM, DMARC validation and blacklist status
  • lookup_dns — live DNS record lookup (A, AAAA, MX, TXT, NS, CNAME, SOA, CAA, SRV)
  • check_dns_propagation — global propagation check across multiple resolvers
  • validate_dnssec — DNSSEC signing, key chain, and DS record validation

Once connected, you can ask Claude things like:

"Scan example.com and tell me what's wrong with their email security"

"Check if my SPF change has propagated globally"

"Is example.com on any email blacklists?"

Claude runs the scan, reads the JSON response, and explains the results in plain language — including what to fix and how.

Install in 60 seconds

Add this to your Claude Desktop config (~/Library/Application Support/Claude/claude_desktop_config.json):

{
  "mcpServers": {
    "intodns": {
      "command": "npx",
      "args": ["-y", "intodns-mcp"]
    }
  }
}

Restart Claude Desktop and the DNS tools appear automatically. No account, no API key, no configuration.

Works with any MCP-compatible client: Cursor, Windsurf, Continue, and others.

Why MCP for DNS security?

DNS problems are a natural fit for AI-assisted diagnosis. When something is misconfigured — a broken SPF record, missing DMARC policy, failed DNSSEC chain — the raw DNS data is unambiguous but hard to interpret. An AI that can query the data live and explain it in context is genuinely useful.

The MCP protocol lets AI assistants call external tools with structured inputs and outputs. IntoDNS.ai already returns machine-readable JSON for every check — wrapping that in an MCP server was a small step that makes the tool available everywhere AI assistants run.

Fully free, always

IntoDNS.ai is built by Cobytes, a Dutch managed hosting company with a strong security focus. The scanning API is free with no rate limits for normal use, and the MCP server is MIT-licensed open source.

The package is on npm as intodns-mcp and the source is on GitHub.

Get started

Install via npm: npx intodns-mcp — or add it to Claude Desktop using the config above. The tools are immediately available for any domain you want to check.

Questions or issues? Open a GitHub issue or reach us at [email protected].

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