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io.github.ofershap/dns

Registre officiel Recherche et web

MCP server for DNS lookups, reverse DNS, WHOIS, and domain checks — zero auth, zero config

Code source Documentation

Installation

Ajoutez ceci à la configuration MCP de votre client (Claude Desktop : claude_desktop_config.json ; Cursor : .cursor/mcp.json ; VS Code et les autres utilisent la même forme « mcpServers »).

NPM package mcp-server-dns
Claude Code 
claude mcp add dns -- npx -y mcp-server-dns@1.0.1
Configuration JSON (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "dns": {
            "command": "npx",
            "args": [
                "-y",
                "mcp-server-dns@1.0.1"
            ]
        }
    }
}

Documentation

Tirée du README du projet sur GitHub, actualisée chaque semaine. Les liens ouvrent GitHub.

Sommaire
  1. mcp-server-dns
  2. Why
  3. Tools
  4. Quick Start
  5. Examples
  6. Development
  7. See also
  8. Author
  9. License

mcp-server-dns

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.

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.

Tools

ToolWhat it does
dns_lookupLook up A, AAAA, MX, TXT, NS, CNAME, SOA, SRV, or PTR
reverse_dnsPerform reverse DNS (PTR) lookup on an IP address
resolve_allResolve A, AAAA, MX, TXT, NS, CNAME in one call
check_nameserversGet nameserver (NS) records for a domain
whoisQuery 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

README built with README Builder

License

MIT © 2026 Ofer Shapira

Questions fréquentes

Qu'est-ce que io.github.ofershap/dns ?

MCP server for DNS lookups, reverse DNS, WHOIS, and domain checks — zero auth, zero config

Comment installer io.github.ofershap/dns ?

Il s'exécute sur votre machine. Dans Claude Code : claude mcp add dns -- npx -y mcp-server-dns@1.0.1. Pour les autres clients, collez la configuration JSON de cette page dans leurs réglages MCP.

Faut-il une clé API pour io.github.ofershap/dns ?

Son entrée au registre n'indique aucune clé ni secret obligatoire. Certaines fonctions peuvent tout de même demander un compte auprès du service auquel il se connecte.

io.github.ofershap/dns est-il open source ?

Oui. Son code est sur GitHub sous licence MIT.

Qui maintient io.github.ofershap/dns ?

Il est publié par ofershap. AI.tn le référence sans le maintenir ni le recommander.

Issu du registre MCP officiel. Être listé n'est pas une recommandation : vérifiez le code et les permissions d'un serveur avant de lui donner accès à vos données.