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.

Why?

We've all been there:

Code

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.

Quick Start

1. Install

Terminal

npm install -g mcp-domain-radar

2. Connect to your AI coding tool

Claude Code

Terminal

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

Codex CLI

bash

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

Cursor

Add to .cursor/mcp.json:

config.json

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

Claude Desktop

Add to claude_desktop_config.json:

config.json

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

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

bash

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:

Code

"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.

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`

Examples

Check a specific name

Code

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

Code

AVAILABLE:
  + nexflow.dev
  + nexflow.ai

TAKEN:
  - nexflow.com
  - nexflow.io

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

Brainstorm from keywords

Code

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

Code

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.

How It Works

Code

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

Development

bash

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

Test locally:

Terminal

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

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.

License

MIT

mcp-domain-radar

Why?

Quick Start

What You Get

4 Tools — automatically used by Claude during conversations

30+ TLDs — including trending ones

Examples

Check a specific name

Brainstorm from keywords

Guided workflow with the brand-naming prompt

How It Works

Development

Roadmap

License

Guided workflow with the `brand-naming` prompt