mcp-domain-radar

Works with
Claude Code · Claude Desktop · Cursor · Codex CLI · any MCP-compatible client

MCP server that checks domain availability in real-time during brand naming.

Name your brand. Check the domain. All in one conversation.

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Why?

We've all been there:

You:    "Suggest a name for my service"
AI:     "How about NexFlow?"
You:     Search nexflow.com... already taken
You:    "Another one"
AI:     "DataPulse?"
You:     Search datapulse.com... also taken
You:    "..."
        (repeat 10 times)

Install mcp-domain-radar once, and your AI checks domain availability the moment it thinks of a name. No more switching between browser and terminal.

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Quick Start

1. Install

npm install -g mcp-domain-radar

2. Connect to your AI coding tool

Claude Code

claude mcp add domain-radar -- mcp-domain-radar

Codex CLI

codex mcp add domain-radar -- npx mcp-domain-radar

Cursor

Add to .cursor/mcp.json:

{
  "mcpServers": {
    "domain-radar": {
      "command": "npx",
      "args": ["mcp-domain-radar"]
    }
  }
}

Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "domain-radar": {
      "command": "npx",
      "args": ["mcp-domain-radar"]
    }
  }
}

3. Install the brand-naming skill (optional, Claude Code only)

mkdir -p ~/.claude/skills/brand-naming
cp node_modules/mcp-domain-radar/.claude/skills/brand-naming/SKILL.md ~/.claude/skills/brand-naming/

Or copy it manually from the GitHub repo.

4. Use it

With the skill installed, type /brand-naming in Claude Code to start a guided naming session.

Or just talk naturally:

"I'm building a task management app for developers.
 Help me find a brand name with an available domain."

Claude will automatically check domains as it brainstorms.

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What You Get

4 Tools — automatically used by Claude during conversations

Tool	What it does
check_domains	Check exact domain names — "Is mybrand.com taken?"
check_brand_domains	Check one name across 17+ TLDs at once — "Check nexflow across all popular TLDs"
suggest_and_check_domains	Generate name variations from keywords & check all — "Brainstorm names from keywords: pulse, data, flow"
list_supported_tlds	Show all TLDs this server supports

30+ TLDs — including trending ones

Category	TLDs
Classic	.com .net .org
Tech / Startup	.io .dev .app .co .tech .sh
Trending	.ai .gg .so .me .xyz .cc .to .run .cloud .tv
Creative	.lol .wtf .cool .world .studio .design
Commerce	.online .site .store
Country	.kr

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Examples

Check a specific name

You: Check if "nexflow" is available — try .com, .io, .ai, and .dev

AVAILABLE:
  + nexflow.dev
  + nexflow.ai

TAKEN:
  - nexflow.com
  - nexflow.io

--- 2 available / 2 taken / 0 unknown ---

Brainstorm from keywords

You: I need a name for an AI code review tool.
     Keywords: code, review, pulse, scan.
     Find me names with available domains.

Generated 20 name variations from: code, review, pulse, scan
Checking .com .io .ai .dev .app .co for each

+ codepulse (compound) — available: .dev, .ai | taken: .com, .io
+ scanflow (suffix) — available: .ai, .dev, .app | taken: .com
+ getpulse (prefix) — available: .dev, .co | taken: .com, .io, .ai
+ revscan (blend) — available: .com, .io, .ai, .dev, .app, .co
- codelab (suffix) — all checked TLDs taken

TOP PICKS (have available domains):
  revscan → revscan.com, revscan.io, revscan.ai, revscan.dev, revscan.app, revscan.co
  codepulse → codepulse.dev, codepulse.ai
  scanflow → scanflow.ai, scanflow.dev, scanflow.app

Guided workflow with the brand-naming prompt

The server includes a built-in prompt template that walks you through the full naming process step by step.

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How It Works

Your question
    │
    ▼
  Claude brainstorms names
    │
    ▼
  mcp-domain-radar
    ├── 1. DNS lookup (fast — if it resolves, it's taken)
    └── 2. WHOIS query (definitive — checks registration status)
    │
    ▼
  Only names with available domains are recommended

• No API keys required — uses native DNS and WHOIS protocols
• Rate-limit friendly — batches queries with delays
• Works offline for DNS checks — WHOIS requires network

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Development

git clone https://github.com/sonwr/mcp-domain-radar.git
cd mcp-domain-radar
npm install
npm run build

Test locally:

claude mcp add domain-radar -- node ./dist/index.js

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Roadmap

• Domain price estimation per registrar
• Expiring / recently dropped domain suggestions
• Registrar API integration (Namecheap, Cloudflare, GoDaddy)
• Internationalized domain name (IDN) support
• More TLDs and WHOIS servers

Contributions welcome! Open an issue or PR.

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License

MIT