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URL: https://glama.ai/mcp/servers/ofershap/mcp-server-dns

⇱ mcp-server-dns by ofershap | Glama

mcp-server-dns

👁 npm version
👁 npm downloads
👁 CI
👁 TypeScript
👁 License: MIT

DNS lookups, reverse DNS, WHOIS, and domain checks from your AI assistant. No API keys, no config. Powered by Node.js built-in DNS.

npx mcp-server-dns

Works with Claude Desktop, Cursor, VS Code Copilot, and any MCP client. Uses Node.js native dns module, so there's nothing to sign up for.

👁 MCP server for DNS lookups, WHOIS queries, and domain checks

Demo built with remotion-readme-kit

Why

DNS and WHOIS lookups come up more often than you'd think during development. Debugging email delivery? You need MX records. Setting up a new domain? Check the nameservers. Investigating a suspicious URL? WHOIS tells you who owns it. The existing MCP options for this require paid API keys (like WhoisXML API). This server uses Node.js built-in DNS resolution and public WHOIS servers, so it works out of the box with zero accounts or credentials.

Related MCP server: Domain Tools MCP Server

Tools

Tool

What it does

dns_lookup

Look up A, AAAA, MX, TXT, NS, CNAME, SOA, SRV, or PTR

reverse_dns

Perform reverse DNS (PTR) lookup on an IP address

resolve_all

Resolve A, AAAA, MX, TXT, NS, CNAME in one call

check_nameservers

Get nameserver (NS) records for a domain

whois

Query WHOIS data (follows IANA referrals to registrar)

Quick Start

Cursor

Add to .cursor/mcp.json:

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

Claude Desktop

Add to claude_desktop_config.json:

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

VS Code

Add to user settings or .vscode/mcp.json:

{
 "mcp": {
 "servers": {
 "dns": {
 "command": "npx",
 "args": ["-y", "mcp-server-dns"]
 }
 }
 }
}

Examples

  • "What are the DNS records for example.com?"

  • "Do a reverse DNS lookup on 8.8.8.8"

  • "Show me the WHOIS info for github.com"

  • "What nameservers does cloudflare.com use?"

  • "Resolve all record types for google.com"

  • "Check the MX records for my-company.com"

Development

git clone https://github.com/ofershap/mcp-server-dns.git
cd mcp-server-dns
npm install
npm test
npm run build

See also

More MCP servers and developer tools on my portfolio.

Author

👁 Made by ofershap

👁 LinkedIn
👁 GitHub

README built with README Builder

License

MIT © 2026 Ofer Shapira

A
license - permissive license
A
quality
D
maintenance

Maintenance

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–Releases (12mo)
Commit activity

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