mcp-domain-radar
★ 1from sonwr
MCP server that checks domain availability in real-time during brand naming — never recommend a name without a domain again
⌁ labsco summary — our analysis, not the vendor's
What it is — an MCP server that checks domain availability in real time during AI brand-naming sessions, so your assistant never suggests a name whose domain is taken, for founders and namers.
What you get —
- Real-time domain checks the moment the AI thinks of a name — "I'm building a task manager for developers, find me a brand name with an available domain" and it checks as it brainstorms.
- Works with Claude Code, Claude Desktop, Cursor, Codex CLI, and any MCP client.
- An optional Claude-Code-only brand-naming skill (
/brand-naming) for a guided naming session.
Requirements — env empty; no API keys — npm install -g mcp-domain-radar and connect. Runs out of the box.
Cost snapshot — free, MIT-licensed. No paid service fronted in the README.
Setup effort — npm install -g mcp-domain-radar, then e.g. claude mcp add domain-radar -- mcp-domain-radar; optional skill copy.
Our take — A simple, genuinely useful fix for the "name suggested → domain taken" loop. Caveat: it's a narrow, single-purpose 1-star tool, and the README doesn't specify which registrar/data source backs the availability checks.
Source: the project README — summarized 2026-07-08.
⌁ readme from github — mirrored (latest on GitHub ↗)
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:
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.
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
You: Check if "nexflow" is available — try .com, .io, .ai, and .devAVAILABLE:
+ 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.appGuided 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
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
git clone https://github.com/sonwr/mcp-domain-radar.git
cd mcp-domain-radar
npm install
npm run buildTest locally:
claude mcp add domain-radar -- node ./dist/index.jsRoadmap
- 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.
{
"mcpServers": {
"domain-radar": {
"command": "npx",
"args": ["mcp-domain-radar"]
}
}
}Quick Start
1. Install
npm install -g mcp-domain-radar2. Connect to your AI coding tool
Claude Code
claude mcp add domain-radar -- mcp-domain-radarCodex CLI
codex mcp add domain-radar -- npx mcp-domain-radarCursor
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.
No common issues documented yet. If you hit a problem, the repository's GitHub Issues page is the best place to look.
Licensed under MIT— you can use, modify, and redistribute it under that license's terms.
License
MIT