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OrbitFour

com.orbitfour/domainsorbitfour.comstreamable-httpv1.6.0Scanned

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

4 tools: 1 do something that can't be undone, 1 change things and 2 only read.

Tools: 0 delete, 1 irreversible, 1 write, 2 read.
  • Reads private data · 1
  • Reads text others write · 4
  • Can send data out · 0
  • 1 finding

Anlyon alternative

2 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

Import an OpenAPI spec →

Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

4 tools

Can't be undone 1Claude Code: ask
  • check_transferAsk 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-yea…Reads text others write1 finding

    Why it is in this group

    • The name "check_transfer" says "transfer": a word for a change that another call does not undo.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.

    Findings

    • Warn

      The server marks "check_transfer" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "check_transfer" says "transfer": a word for a change that another call does not undo.

      What this check looks for
    Description, as the server wrote it
    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.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
    • readOnlyHint: true
Changes things 1Claude Code: ask
  • check_domainLook 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…Reads text others writeNo findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
    • readOnlyHint: true
Only reads 2Show 2 read-only tools
  • get_tld_requirementsLook 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 shorte…Reads private dataReads text others writeNo findings

    Why it is in this group

    • The name "get_tld_requirements" says "get": a word for reading.

    What it can reach

    • private-dataThe description's first sentence says "contact": it reads contacts.
    • untrusted-inputThe description's first sentence says "browser": it reads web pages, which anyone can write.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • readOnlyHint: true
  • search_domainsFind domain names from a free-text idea, brand or phrase; a phrase yields short combinations of its words.Reads text others writeNo findings

    Why it is in this group

    • The name "search_domains" says "search": a word for reading.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
    • readOnlyHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged outbound.

Reads private data1
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write4
Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out0
Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • The server marks "check_transfer" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "check_transfer" says "transfer": a word for a change that another call does not undo.

    What this check looks for

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

Install

Pinned to version 1.6.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http domains https://www.orbitfour.com/mcp
claude mcp add --transport http domains https://www.orbitfour.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__domains__search_domains",
      "mcp__domains__get_tld_requirements"
    ],
    "ask": [
      "mcp__domains__check_domain",
      "mcp__domains__check_transfer"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as domains. Review it before you use it.

Capability tags behind 4 rules
  • mcp__domains__check_domain untrusted-input
  • mcp__domains__search_domains untrusted-input
  • mcp__domains__get_tld_requirements private-data, untrusted-input
  • mcp__domains__check_transfer untrusted-input

Pin

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/com.orbitfour/domains/verify?hash=b79dbcdea8f03c03f0fd91fd3050fc470caaccf126c83f1e1359b06f6772d235" | jq -e '.changed == false'

Pinned hash b79dbcdea8f0, from Oct 23, 2026, 20:17 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/com.orbitfour/domains/changes.xml

An Atom feed. Works in any feed reader or Slack's RSS app.

Badge

anlyon.dev badge for com.orbitfour/domains
[![anlyon.dev](https://anlyon.dev/badge/com.orbitfour/domains.svg)](https://anlyon.dev/servers/com.orbitfour/domains)

Source: MCP Registry. Synced Oct 23, 2026, 20:17 UTC.