com.tldbenchPublished by tldbench.comOfficial publisherv1.0.0Updated Nov 6, 2026
Domain prices for every TLD at the top registrars: renewals, N-year totals, history, availability.
Independent domain price index: lets an assistant compare registrar prices, check name availability and estimate multi-year ownership costs across TLDs.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/com.tldbench%2Ftldbench/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.Add this to your client's mcpServers config.
{
"mcpServers": {
"tld-bench": {
"type": "http",
"url": "https://tldbench.com/mcp"
}
}
}Compare prices for an extension
Use this when the user asks what an extension costs or where it is cheapest. Returns every registrar's register, renew, transfer and restore prices for one TLD, ranked by the N-year cost of ownership (default 3 years), with each price's source and date.
tldrequiredsortlimityearscurrencyregistrarsinclude_staleCheapest registrar
Use this when the user wants the single best place to buy (or transfer) one or more extensions for N years. Ranks by the total cost of ownership, not the first-year promotion; returns the winner with a year-by-year breakdown, three runners-up and caveats. Up to 20 extensions in one call.
tldsrequiredyearscurrencyoperationexclude_registrarsTotal cost of ownership
Use this when the user compares the long-run cost of several names or extensions, at one registrar or the cheapest. Applies minimum terms and regular renewals; with transfer_after_year it also finds the cheapest registrar to move to later. Up to 20 domains or extensions in one call.
tldsyearsdomainscurrencyregistrartransfer_after_yearCheck availability
Use this when the user asks whether specific domain names are free. Checks the registry (RDAP, WHOIS for some ccTLDs) after a DNS pre-check, with an honest unknown, and adds the cheapest registrar's price to own each free name. Up to 50 names in one call.
modeyearsdomainsrequiredcurrencywith_pricesSearch a name across extensions
Use this when the user has a name and wants to know which extensions are free and what each costs to own. Checks one label across up to 50 extensions (or a preset: popular, tech, cheap, country:<cc>) and sorts the free ones by total cost.
namerequiredtldsyearspresetcurrencymax_renew_priceCheck and price name ideas
Use this when the user needs name ideas. Pass `candidates` from your own brainstorm and we check and price them; with only `keywords` we add simple prefixes, suffixes, TLD hacks and combinations. Returns only names that are available or unknown, cheapest first.
tldslimityearscurrencykeywordscandidatesmax_lengthmax_renew_priceRegistrar profile
Use this when the user asks about a registrar: its country, group, size (gTLD domains under management), how many extensions it sells, and how fresh our prices for it are. Accepts our id, its name or an IANA id.
registrarrequiredPrice history
Use this when the user asks how an extension's prices have moved or whether a rise is coming. Returns each registrar's price periods (changes only) and the registry's announced wholesale changes.
tldrequiredsincecurrencyoperationregistrarPromotions and coupons
Use this when the user asks for deals, promo codes or first-year discounts. Returns running promotional prices we saw at the source (with the regular price they revert to); coupon codes come later.
tldlimitcurrencyoperationregistrarExtension facts
Use this when the user asks what an extension is, who runs it, or whether it fits: type (generic or country code), registry, brand TLD or not, DNSSEC, RDAP and WHOIS servers, minimum term, second levels, registry fees, and its price summary.
tldrequiredyearscurrency83% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.
