Remote MCP · Streamable HTTP

A domain MCP that hits the registry, not a guess.

One URL. No API key. Your agent only gets .com/.net names already verified available via live RDAP — the check WHOIS caches and parked pages fail.

https://domainsearchking.com/api/mcp
Add to Cursor Add to VS Code Try in browser
No API key Streamable HTTP 10 calls/day free RDAP, not WHOIS

98.7% of names this MCP returns are registrable. In our Hallucination Index (2,449 live RDAP checks, 10 models), up to 92% of model-suggested “available” .coms were already taken.

Connect

Install the way your client actually works.

JSON shapes still differ by host. Pick yours. Same endpoint everywhere.

claude mcp add --transport http domain-search-king https://domainsearchking.com/api/mcp

Then restart the session and ask it to name something. No OAuth. No env vars.

One-click Cursor install · or paste into ~/.cursor/mcp.json

{
  "mcpServers": {
    "domain-search-king": {
      "url": "https://domainsearchking.com/api/mcp"
    }
  }
}

Command Palette → MCP: Add Server → HTTP, or this deeplink if Copilot Agent is on.

{
  "servers": {
    "domain-search-king": {
      "type": "http",
      "url": "https://domainsearchking.com/api/mcp"
    }
  }
}

Claude Desktop / claude.ai: Settings → Connectors → Add custom connector. Name it Domain Search King. URL:

https://domainsearchking.com/api/mcp

ChatGPT Developer Mode / connectors: add a remote MCP server with this URL. Same JSON-RPC as Claude.

https://domainsearchking.com/api/mcp

Grok chat: grok.com/connectors → New Connector → Custom → paste the URL. Grok Build CLI:

grok mcp add --transport http domain-search-king https://domainsearchking.com/api/mcp

# xAI SDK / Responses API:
# tools=[mcp(server_url="https://domainsearchking.com/api/mcp")]

Remote HTTP only (this server already is). No API key on our side. Localhost URLs will be rejected — use this public URL.

DeepSeek, Llama, Qwen, etc. are models, not MCP clients. Wire the host: Open WebUI (Admin → Integrations → MCP Streamable HTTP), Continue, Cline, DeepSeek Harness, LibreChat. Same URL. OpenClaw: ClawHub listing.

npx add-mcp https://domainsearchking.com/api/mcp --name domain-search-king

# OpenClaw / ClawHub (live):
clawhub install dsk-available-domains

# Any HTTP MCP client:
POST https://domainsearchking.com/api/mcp
Content-Type: application/json

Skill file: /skill.md · server card: /.well-known/mcp/server-card.json

Tools

Three tools. Then stop guessing.

Paste a prompt into the agent after install. Never tell a human a name is free unless one of these returned it.

find_available_domains

Brandable .coms from a keyword + optional description. Live RDAP before return. count 1–24.

“Find 8 available .coms for a late-night coffee roaster.”

find_available_domains_by_pattern

Starts / ends / contains across TLDs. Default .com + .net. The sweep most domain MCPs skip.

“Every available .com and .net starting with bear.”

check_domain

One hostname: RDAP age/expiry, backlinks, toxic flags, Wayback, trademark links. No fake score.

“Is oakbear.net free at the registry, not WHOIS?”

Inspector

Call it from this page.

Same JSON-RPC your agent posts. No signup. RDAP takes a few seconds.

Honest limits

What this is not.

Not a WHOIS wrapper

Availability is live RDAP. WHOIS caches and a 200 on a parked page will lie. If a call fails, the agent should say so — not invent names.

Not a trademark search

Available ≠ clear to use. check_domain links trademark search; it does not grant a mark. The human still registers at a registrar.

Not unlimited

Public tier: 10 tool calls/day per IP, no key. High-volume / embedded: hello@domainsearchking.com. Web search on the site is also free.

Not a local npx install

Remote only: Streamable HTTP at /api/mcp. GET that URL for server info + tool names. POST for JSON-RPC.

FAQ

Straight answers.

How do I add this in 30 seconds?

Cursor or VS Code: buttons at the top. Claude Code: claude mcp add --transport http domain-search-king https://domainsearchking.com/api/mcp. Grok: grok.com/connectors → Custom, or grok mcp add --transport http domain-search-king https://domainsearchking.com/api/mcp. Claude Desktop: Connectors → custom → that URL.

Why not just ask Claude if the name is free?

Models invent plausible names with no registry. The Hallucination Index measured up to 92% already taken. This MCP verifies first, so 98.7% of returns are registrable.

Which TLDs?

find_available_domains returns brandable .coms. Pattern search defaults to .com and .net, and can enumerate .org, .io, .co, .info.

MCP or REST?

MCP for agents. REST if you own HTTP: /api/names?q= and /api/check?domain=. Same RDAP path.