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OrbitFour MCP Server

by orbitfour Your server? Claim it
answering

OrbitFour is answering right now. Last checked 1 min ago. It exposes 4 tools.

Check domain availability and live registry pricing, or search for available names.

Uptime history 44 hours of history
44 hours agonow
100.0%
Uptime 24h
92 of 92 checks
4
Tools
read from the server
496 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

Today is the operative word: we check OrbitFour every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

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 1 min ago.

run in your terminal
claude mcp add domains --transport http https://www.orbitfour.com/mcp
Settings → Connectors → Add custom connector, then paste this address
https://www.orbitfour.com/mcp
~/.codex/config.toml
[mcp_servers.domains]
url = "https://www.orbitfour.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "domains": {
      "url": "https://www.orbitfour.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "domains": {
      "type": "http",
      "url": "https://www.orbitfour.com/mcp"
    }
  }
}

Available tools 4

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
Look up exact domain names: whether each can be registered now, and its per-year registration, renewal and transfer price in USD, premium names included, from a live registry check. Use it for names you already have and to confirm a search_domains suggestion. Up to 10 names per call; read-only. available is true, false, or null (the registry could not be asked; not the same as taken). An unavailable name says why in reason: taken, reserved, unavailable or unknown. purchasable is false for an available name OrbitFour can't sell now, and for a null one, and purchase_blocker says why. first_term is the shortest term (min_years: .ai is 2) and its total with the ICANN fee. A malformed name or an extension OrbitFour doesn't sell comes back with an error field. pricing_source says where the registration price came from: "registry" is a live quote for that name, "baseline" is the extension's standard rate and final for the name (the extension has no premium names, or the registry quoted none for it), and "unconfirmed" means the registry lookup did not finish, so the price is not final for a name that may be premium. pricing_sources breaks this out per action.
domains
search_domains
Find domain names from a free-text idea, brand or phrase; a phrase yields short combinations of its words. top_picks answers "how does my name look": the name as typed (when its extension isn't .com/.net/.org) and the name on .com, .net and .org, or on each extension in tlds, with its real status, taken and unknown included, as check_domain reports it. suggestions are up to `limit` ranked names a live check found available, never repeating a top pick, with per-year prices in USD, premium names included unless include_premium is false; match is exact_sld or variation, and hack is true for a domain hack such as danger.zone. unchecked_names lists names whose check came back unknown, left_out counts why other names checked aren't suggested, and with tlds, each extension says why it found nothing. Search is advisory: confirm the chosen name with check_domain before quoting it, and a purchase checks again. Read-only, no side effects.
tld
get_tld_requirements
Look up what OrbitFour charges and requires for domain extensions (TLDs): standard per-year registration, renewal, transfer and restore prices in USD plus the ICANN fee, the shortest and longest term, the fixed transfer term, whether WHOIS privacy is allowed, any eligibility restriction, whether browsers require HTTPS for its websites (https_required: .app, .dev), and JSON Schemas for what a registration must include (.us, for example, needs Nexus data on the registrant contact). Up to 10 extensions per call; read-only. These are standard prices: when premium_possible is true a particular name can cost more, so quote it with check_domain. An extension OrbitFour does not sell comes back as tld_not_found.
transfer
check_transfer
Ask each name's registry whether it can be transferred to OrbitFour now (not locked, no transfer or delete pending) and quote the full first-term transfer price in USD: the per-year price plus the ICANN fee for the registry's transfer term. Up to 5 names per call; read-only. transferable is true, false, or null (the registry could not be asked just now; not the same as locked), and reasons says why: invalid_name, unsupported_tld, already_here, not_registered (nobody holds it, so register it instead), locked, pending_transfer, pending_delete, premium_over_cap, price_unconfirmed, unknown. The price is what the transfer would cost if it goes ahead. Never send a transfer authorization code here: the transfer itself asks for it.

Endpoints

URLTransportStateLatencyChecked
https://www.orbitfour.com/mcp streamable-http answering 713 ms 1 min ago

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OrbitFour — questions

Answers built from our own checks of this server.

What can OrbitFour do?
It exposes 4 tools, read directly from the server on our last check. Among them: check_domain, check_transfer, get_tld_requirements, search_domains. 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 OrbitFour working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 496 ms. The bar chart above shows every period we have measured.
How do I connect OrbitFour?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does OrbitFour need an API key?
No. OrbitFour completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is OrbitFour?
It answers our handshake in 496 ms on average, which is faster than 26% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.