How to check domain availability inside ChatGPT and Claude
By Domain Yoga · Last updated July 27, 2026
Yes — you can now check real domain availability inside ChatGPT and Claude, with answers that come from a live lookup rather than the model’s imagination. The mechanism is a connector: several domain companies run hosted MCP (Model Context Protocol) servers that an assistant can call mid-conversation. In Claude, you add GoDaddy’s connector from the connectors directory, or paste a hosted server’s URL — Squarespace’s, or Instant Domain Search’s — into a custom connector. In ChatGPT, you enable it from what OpenAI renamed the Plugin Directory in July 2026. The zero-setup servers are free and need no account or API key. Here’s the setup for each assistant, who can actually reach it from where, what the connectors can and can’t do, and where the honest limits are.
What is the GoDaddy Domains MCP server?
It’s a hosted remote MCP endpoint at https://api.godaddy.com/v1/domains/mcp — nothing to install locally, nothing to run yourself. It exposes exactly two tools: domains_check_availability and domains_suggest. So it both checks names and suggests them; this is not a bare lookup bolted onto a chat. The availability tool takes comma-separated domain names. Ask about a single domain and the query routes to an exact-search API that returns pricing tiers, premium status, and alternative TLDs; ask about several at once and it routes to a bulk API. GoDaddy describes the backing as its own public domain search, availability and suggest APIs, without naming a specific published version.
Two details make it unusually low-friction. First, it’s free and requires no GoDaddy account or API credential — GoDaddy’s docs put it plainly: “Current tools use public domain data and do not accept GoDaddy account credentials.” Second, there’s no published numeric rate limit; the docs say only that limits are “enforced per client-IP” with details “TBD as service scales.” No official bulk-check maximum or TLD count is published for the MCP server either, and the specific figures that circulate online belong to GoDaddy’s separate bulk-search web tool or to unrelated community servers — so treat any hard number you see attached to this endpoint with suspicion.
There is one limit worth knowing precisely because it’s invisible. GoDaddy’s engineering write-up describes quota tracking that works without authentication, and says that when a client has exhausted its optimization quota the server falls back to the original query. In practice that means the language-model preprocessing that makes long, descriptive prompts work can stop silently: no error, no warning, just noticeably worse suggestions. If quality drops mid-session, that’s the likeliest reason.
It’s also strictly read-only. It cannot register a domain, change DNS, transfer anything, or take payment — registration still happens at godaddy.com checkout. On privacy, GoDaddy states that searches “are not linked to a GoDaddy account” and use HTTPS/TLS, with [email protected] as the support contact. One genuinely useful wrinkle: premium and aftermarket status is returned, so a taken name that happens to be for sale isn’t reported to you as a flat dead end — the domain you want is taken covers what to do with that answer.
On dates, be careful, because two different milestones get merged into one online. On 26 February 2026, GoDaddy announced its Claude connector specifically — at that point it did single-domain checks only, with bulk described as a future phase, and GoDaddy’s claim was to be “the first domain registrar available through Claude’s MCP directory,” a narrow claim about Claude’s directory. On 13 April 2026, GoDaddy published a technical deep-dive describing the broader public MCP server: both tools, bulk-capable, no API keys, and working with ChatGPT as well. There’s no single canonical launch date that supersedes both, so if you see one quoted, check which milestone it refers to.
How do you enable it in Claude?
The connector is listed in Anthropic’s Connectors Directory at claude.com/connectors/godaddy, described with three capabilities: “Check Domain Availability,” “Find Similar Domains,” and “Get Contextual Domain Suggestions.” (No “verified” badge is visible on that page, for what it’s worth.) The UI path is Settings → Customize → Connectors → ”+”, or from within a chat: ”+” → Connectors → Manage connectors. Once enabled, results render as plain Markdown in the reply. That’s GoDaddy’s choice rather than a Claude limitation, and worth stating precisely because it’s easy to read the wrong way: Anthropic shipped MCP Apps — interactive UI rendered inside the conversation — in January 2026, and GoDaddy’s own write-up confirms the interactive domain cards currently render in ChatGPT while other clients receive text.
Who can use it depends on the route. Per Anthropic’s support docs, custom connectors using remote MCP — the route you’d use for Squarespace’s or Instant Domain Search’s server — are available on Claude, Cowork, and Claude Desktop for users on free, Pro, Max, Team, and Enterprise plans, with free users limited to one custom connector. Directory connectors are not paid-gated: Anthropic’s documentation puts them on every plan across Claude, Cowork, Claude Desktop, and Claude Mobile. On Team and Enterprise plans, an Owner or Primary Owner must enable connectors org-wide before anyone can add one.
How do you enable it in ChatGPT?
Through what is now the Plugin Directory. Note the name change: on 9 July 2026 OpenAI migrated the app directory into a Plugin Directory, which it describes as the primary place to discover capabilities across ChatGPT and Codex. You’ll find it at chatgpt.com/plugins, under Settings → Plugins, or via Plugins in the sidebar. Anything written before that date — including GoDaddy’s own announcements — will say “Apps Directory.”
GoDaddy states the integration “is listed in ChatGPT’s Apps Directory as a verified integration.” We couldn’t load OpenAI’s listing page to confirm that independently, so treat the “verified” label as GoDaddy’s characterization rather than something we checked. Once it’s enabled, results render as an interactive widget with domain cards, which is nicer than a Markdown table for scanning a batch of results.
Apps are available to logged-in users on the Free, Go, Plus, and Pro plans; Business has them on by default, and Enterprise and Edu off by default until an admin enables them. A sourcing caveat we owe you: OpenAI’s Help Center pages refused our direct fetches, so plan details come from indexed snippets of OpenAI’s own pages rather than the live documents.
One disambiguation, and it’s now genuinely confusing: OpenAI has reused the word “plugin.” Between 2023 and 2024 it ran an earlier, unrelated ChatGPT Plugins system, which was deprecated — and GoDaddy had a plugin on it called “GoDaddy Name Search.” That old product has nothing to do with the July 2026 Plugin Directory or the MCP-based integration described here. If you find a 2023 write-up of a GoDaddy ChatGPT plugin, it is not this.
What if you’re in the EU, UK, or Switzerland?
Check rather than assume — and be careful with the confident answers you’ll find elsewhere, including older versions of this claim.
When OpenAI launched apps in October 2025, they went live everywhere except the EEA, Switzerland, and the UK, and OpenAI said at the time that it expected to bring them to EU users soon. That launch-day snapshot is what most write-ups still repeat. OpenAI’s current documentation reads differently: it describes the Plugin Directory as visible across plans, with individual apps carrying their own plan, workspace, role, surface and regional requirements, and connect buttons greyed out accordingly. That’s per-app gating, not a platform-wide wall. We could not find any announcement that apps have since launched in the EEA, and we could not test a European account — so the honest status is unresolved in both directions. Open the directory and look.
Three routes are worth knowing if the listing doesn’t appear for you.
Claude. Anthropic’s connector documentation sets out plans and clients without listing any regional restriction. That’s an absence of exclusion rather than a positive statement of EU availability, so treat it as the likelier path rather than a guarantee.
ChatGPT Developer Mode. This one resolves cleanly, and better than we expected: OpenAI’s documentation answers “Are there geo restrictions?” with a flat “No.” The catch is the plan list, which is narrower than commonly reported — full MCP support is currently for Business and Enterprise/Edu; Pro users can connect MCP servers with read and fetch permissions. Plus is not on the list, and Developer Mode is web only. If you’re an EU reader on Plus hoping this is your workaround, it isn’t.
A Custom GPT. Instant Domain Search publishes one, and Custom GPTs aren’t subject to the apps gating — which makes this the least-blocked ChatGPT route for European readers, at the cost of using one company’s tool rather than a directory listing.
Is GoDaddy the first registrar to do this — or the only one?
Neither, and this matters for choosing your setup. Name.com announced MCP and OpenAPI support for AI agents on 10 July 2025 — roughly seven months before GoDaddy’s February 2026 Claude announcement. GoDaddy’s own narrower claim, first registrar in Claude’s curated MCP directory, is the defensible one. Name.com’s offering is developer-oriented, though: self-hosted, requiring an API username and token, so it’s not comparable to a zero-setup consumer connector.
Two genuine like-for-like alternatives exist, and both need naming clearly.
Squarespace Domains runs an official hosted remote MCP server at mcp.squarespace.com/mcp — no API key, no OAuth, no account — exposing domains_search and domains_generate_names. Note that second tool: Squarespace’s server generates name ideas too, just as GoDaddy’s domains_suggest does. It’s read-only, with checkout links back to squarespace.com. We couldn’t confirm a launch date, and it doesn’t appear in Anthropic’s directory as of July 2026, so in Claude you’d add it as a custom connector by URL. (Its documentation currently sits on a developer-preview domain, which is worth knowing before you build a habit around it.)
Instant Domain Search isn’t a registrar, which is exactly why it’s easy to leave out of a registrar round-up and exactly why it shouldn’t be. It runs a free, no-auth hosted server exposing search_domains, generate_domain_variations and check_domain_availability — generation and checking, documented for Claude, ChatGPT and Cursor, and backed by its own registered-domain database rather than a registrar’s storefront. If you want one connector that both suggests and verifies without an account, it is the most direct competitor to GoDaddy’s in this list. We’ve written about the wider product in Instant Domain Search alternatives.
Here’s the wider field:
| Provider | Official server? | Setup required | Availability tools | Caveats |
|---|---|---|---|---|
| GoDaddy | Hosted remote MCP server | None — no account or API key | domains_check_availability, domains_suggest | Read-only; checkout at godaddy.com |
| Squarespace Domains | Hosted server at mcp.squarespace.com/mcp | None — no key, OAuth, or account | domains_search, domains_generate_names | Read-only; docs on a developer-preview domain; not in Anthropic’s directory as of July 2026 |
| Instant Domain Search | Hosted server (not a registrar) | None — no key or account | search_domains, generate_domain_variations, check_domain_availability | Own domain database; also ships a Custom GPT |
| Name.com | MCP + OpenAPI for agents (10 July 2025) | Self-hosted; API username and token | Developer-oriented agent access | Not a consumer connector |
| NameSilo | Hosted server at mcp.namesilo.com | API key required | namesilo.checkAvailability, namesilo.checkMultipleDomains | Key setup before first use |
| Hostinger | Official first-party MCP server | API token required | domains_checkDomainAvailabilityV1, plus TLD suggestions | Can also purchase — not read-only |
| Cloudflare | Registrar API beta (15 April 2026) via its general-purpose MCP server | Cloudflare account and payment method | Availability check among general APIs | Can register domains and charge the default payment method |
| Porkbun | Official first-party server, run locally | API key required | Domain, DNS, SSL and webhook operations | Self-hosted via npx; read-only by default |
| Hover | MCP endpoint exists | Unclear | Generic API-exploration tools found | No dedicated availability tool confirmed |
| Namecheap, Dynadot, Gandi | No official server found | Varies | Community-built servers only | Unofficial |
Beyond registrars entirely, there’s a sizeable ecosystem of community-built availability servers backed by RDAP and WHOIS — and RDAP is the standard endpoint registries like Identity Digital and Verisign expose (neither runs an MCP server of its own). So this category doesn’t begin and end with registrars. Note too that “official” doesn’t mean “zero-setup”: of the servers above, only GoDaddy’s, Squarespace’s and Instant Domain Search’s work without a key or an account. If you’re deciding where to eventually register rather than just where to check, that’s a separate question — see the best registrars for indie hackers, and note that a registrar’s chat connector, like its web-based name generator, is top-of-funnel for its own checkout.
Will the assistant actually check every name it suggests?
No — and this is the single most important limitation to internalize. The lookup happens only if the connector is enabled and the model decides to call the tool on that turn. Generation and verification remain separate operations; the connector makes verification possible, not mandatory. An assistant can happily brainstorm twelve names and check two of them, then present all twelve with equal confidence. Why ChatGPT keeps suggesting taken domains explains the mechanism properly — the short version is that availability talk in a chat carries no evidence unless a lookup visibly ran for that exact name.
The practical fix is to make the check explicit: ask the assistant to run the availability tool on every candidate before showing you the list, and confirm in the reply that it did. GoDaddy’s, Squarespace’s and Instant Domain Search’s servers all suggest and check in the same conversation, so a well-prompted chat genuinely covers both halves of the job now. How to prompt AI for name ideas has the phrasing that works.
When is a chat connector enough — and when do you want more?
For a real slice of naming work, it’s enough. Verifying a shortlist you already have, getting pricing tiers and premium status on a specific name, sweeping alternates across TLDs mid-brainstorm — a free, zero-setup connector does all of that well, and if you’re already living in ChatGPT or Claude it beats tabbing out to a search box.
The cost is low rather than nil, and two things are worth knowing before you enable one. First, whoever runs the server sees the names you check. GoDaddy states that searches aren’t linked to a GoDaddy account, which is a meaningful assurance but not the same as nobody seeing them — Instant Domain Search markets its own database explicitly on keeping searches away from sales and repricing systems, which tells you the concern is taken seriously in the industry. If a name matters commercially before you’ve registered it, that’s worth a thought. Second, Anthropic’s own connector guidance is blunt about third-party servers: the developer controls which tools are exposed and can change them at any time, Anthropic doesn’t run those servers, and prompt injection is a real risk. Neither is a reason to avoid connectors. Both are reasons to enable the ones you’d vouch for rather than all of them.
Where a chat strains is volume and persistence. The output lives in a conversation: you can’t re-sort it, filter it, or come back to it as a working list, and nothing in it carries a brandability score — the suggestions arrive in whatever order the model produced them. When the job is generating and comparing candidates at scale rather than verifying a few, that shape costs you time; checking availability in bulk is the same problem from the other direction. That’s the gap Domain Yoga is built for: one search returns around 250 availability-checked ideas, ranked by brandability (here’s how the ranking works), for $2–$5 per search. We’ve written up the honest head-to-head in Domain Yoga vs ChatGPT — including where the chat workflow wins.
Whichever tool produces the winning name, the zero-setup connectors are read-only, so registration still happens at a checkout. Not every server in that table is, though — Cloudflare’s and Hostinger’s can register domains and charge a stored payment method, which is a genuinely different risk profile once an agent is driving. Between falling in love and paying, run the pre-registration checklist and check the social handles, not just the domain. A live availability check inside your chat is a real upgrade over guessing. It’s the start of due diligence, not the end of it.