Domaincheckr Mcp — independently scanned and version-tracked by SaferSkills.
SaferSkills independently audited Domaincheckr Mcp (Agent Skill) and scored it 100/100 (green). The audit ran 55 deterministic rules across Security, Supply Chain, Maintenance, Transparency, and Community; it found 0 high-severity and 0 lower-severity findings. The full rule-by-rule trace and per-finding evidence are below. Free, methodology-open.
Findings & checks · 0 flagged
Every scanned point with the score it earned and what moved between them.
First recorded scan — no prior version to compare against.
The primary manifest — the file an agent reads to learn what this artifact does.
Check domain name availability instantly using RDAP. No API key or installation required. Works as a remote MCP server.
This is a remote MCP server -- no local installation needed. Just add the URL to your MCP client.
Add to your claude_desktop_config.json:
{
"mcpServers": {
"domaincheckr": {
"url": "https://domaincheckr.fly.dev/mcp"
}
}
}Config file location:
~/Library/Application Support/Claude/claude_desktop_config.json%APPDATA%\Claude\claude_desktop_config.jsonclaude mcp add domaincheckr --transport http https://domaincheckr.fly.dev/mcpAdd to ~/.cursor/mcp.json:
{
"mcpServers": {
"domaincheckr": {
"url": "https://domaincheckr.fly.dev/mcp"
}
}
}Add to ~/.codeium/windsurf/mcp_config.json:
{
"mcpServers": {
"domaincheckr": {
"url": "https://domaincheckr.fly.dev/mcp"
}
}
}| Tool | Description |
|---|---|
check_domain | Check if a single domain name is available for registration. Returns registrar, creation date, expiry, and nameservers for taken domains. |
check_domains_bulk | Check up to 50 domain names at once. Returns per-domain results with summary counts. |
suggest_domains | Generate and check domain name ideas for a keyword or business description. Creates 15 variations across .com, .io, .ai, .dev, .co and common prefixes/suffixes. |
Try asking your AI assistant:
DomainCheckr uses the RDAP protocol (Registration Data Access Protocol) to check domain availability in real time. RDAP is the modern replacement for WHOIS, standardized by the IETF.
No scraping, no third-party APIs, no rate-limited services. Direct registry queries.
The same service is available as a REST API for building your own integrations or ChatGPT Actions.
| Endpoint | Description |
|---|---|
GET /check/{domain} | Check a single domain |
POST /check | Bulk check (body: {"domains": ["a.com", "b.com"]}, max 50) |
GET /suggest?keyword=fintech | Generate and check domain ideas |
GET /health | Health check |
GET /docs | Interactive API documentation |
GET /openapi.json | OpenAPI spec (for ChatGPT Actions) |
Base URL: https://domaincheckr.fly.dev
MIT
~30 seconds. Free. No account. Every finding cites a rule and a line of evidence.