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Domain Radar

sonwr/mcp-domain-radar

Connects to Claude via stdio and exposes four domain availability tools: check_domains for exact lookups, check_brand_domains to test one name across 17+ TLDs at once, suggest_and_check_domains to generate variations from keywords and batch-check them, and list_supported_tlds. Uses DNS lookups plus WHOIS queries under the hood, no API keys needed. Supports 30+ TLDs including .com, .io, .ai, .dev, and trending options like .gg and .so. Ships with an optional brand-naming skill for Claude Code that guides you through the full naming workflow. Reach for this when you're brainstorming product names and want to filter out taken domains in real time instead of tab-switching to a registrar every 30 seconds.

GitHub stars
1
tools
4
transport
STDIO
last updated
Mar 27, 2026
View on GitHub

Tools

4 tools

Public tool metadata for what this MCP can expose to an agent.

check_domainsCheck exact domain names — "Is mybrand.com taken?"

Check exact domain names — "Is mybrand.com taken?"

No parameter schema in public metadata yet.

check_brand_domainsCheck one name across 17+ TLDs at once — "Check nexflow across all popular TLDs"

Check one name across 17+ TLDs at once — "Check nexflow across all popular TLDs"

No parameter schema in public metadata yet.

suggest_and_check_domainsGenerate name variations from keywords & check all — "Brainstorm names from keywords: pulse, data, flow"

Generate name variations from keywords & check all — "Brainstorm names from keywords: pulse, data, flow"

No parameter schema in public metadata yet.

list_supported_tldsShow all TLDs this server supports

Show all TLDs this server supports

No parameter schema in public metadata yet.

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Readme

mcp-domain-radar

domain-radar

npm version npm downloads license

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:

View the full README on GitHub

Details

Repository
github.com/sonwr/mcp-domain-radar
Package
mcp-domain-radar
Transport
STDIO
Registry
MCP registry, active