Domain Lookup

Verified Integration

Author: @spawning•Category: ServerApplication

GitHub Repository

JSON-RPC 2.0

Protocol Standard

Sub-second

Execution Latency

Active

Operational Status

Client Configuration

— Connect Domain Lookup to Claude Desktop or Cursor in seconds

{
  "mcpServers": {
    "domain-lookup": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-domain-lookup"
      ],
      "env": {}
    }
  }
}

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows).

Architecture & Capabilities

System Overview

Looks up domain names using RDAP and Whois.

Indexed Date

7/22/2026

License

Open Source

Protocol Layer

stdio / SSE RPC

Frequently Asked Questions

Architecture and operational details for Domain Lookup

Domain Lookup first attempts to query domain information using RDAP. If RDAP is unsuccessful, it falls back to using Whois.

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