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Domain RDAP MCP Server

by lulu-the-narwhal Your server? Claim it
answering

Domain RDAP MCP is answering right now. Last checked 9 min ago. It exposes 1 tools.

Free, keyless domain registration lookup via RDAP: registered, available, registrar, expiration.

The linked repository no longer exists on GitHub — it was deleted or made private.

Uptime history 25 days of history · worst day 0%
25 days agonow
100.0%
Uptime 24h
91 of 91 checks
1
Tools
read from the server
214 ms
Response time
average over 24h
open, no key
Access
streamable-http

This one has been quiet for a while

Quiet is not dead — but it is worth knowing when it wakes up, or when someone else takes it over. We watch the repository and tell you either way.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 9 min ago.

run in your terminal
claude mcp add domain-rdap-mcp --transport http https://ads.getlulu.dev/domain/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "domain-rdap-mcp": {
      "url": "https://ads.getlulu.dev/domain/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.domain-rdap-mcp]
url = "https://ads.getlulu.dev/domain/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "domain-rdap-mcp": {
      "url": "https://ads.getlulu.dev/domain/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "domain-rdap-mcp": {
      "url": "https://ads.getlulu.dev/domain/mcp"
    }
  }
}

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

domain
check_domain
Check whether a domain name is registered, using real-time RDAP data (the IETF-standardized successor to WHOIS). Use for "is domain-x.com available/registered", "who is domain-x.com registered with", or "when does domain-x.com expire" style questions. `domain` is a bare domain like "example.com" -- no protocol prefix, no path, no spaces. If the domain is NOT registered, returns `{"domain": ..., "registered": false}` -- this is a normal, meaningful answer (the domain is available), not an error. If the domain IS registered, returns `{"domain", "registered": true, "status", "registered_date", "expiration_date", "last_changed_date", "registrar"}`. `status` is a list of RDAP status codes (e.g. "active", "client transfer prohibited"). Dates are ISO 8601. `registrar` is the registrar's name, or null if the registry redacts it for privacy. For obviously malformed input (not a domain -- e.g. missing a dot, has spaces, or includes a protocol like "https://"), returns a clean `{"error": ...}` instead of calling the API.

Endpoints

URLTransportStateLatencyChecked
https://ads.getlulu.dev/domain/mcp streamable-http answering 156 ms 9 min ago

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Domain RDAP MCP — questions

Answers built from our own checks of this server.

What can Domain RDAP MCP do?
It exposes 1 tools, read directly from the server on our last check. Among them: check_domain. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Domain RDAP MCP working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 214 ms. The bar chart above shows every period we have measured.
Is Domain RDAP MCP still maintained?
The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.
How do I connect Domain RDAP MCP?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Domain RDAP MCP need an API key?
No. Domain RDAP MCP completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Domain RDAP MCP?
It answers our handshake in 214 ms on average, which is faster than 70% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.