FreeRegistrar Prices API

List TLD prices

GET/prices/tlds/{tld}No key

Every registrar's list price for one ending, with the cheapest and trap marks.

Registrar catalog order, then other registrars alphabetically. Free on a public-set ending; outside it the free tier reads one ending a UTC day.

AccessNo key. Limited per address; a key adds the paid fields.

BillingOne call.

FormatsJSON, CSV (.csv)

Connect on RapidAPIAlso inDomain Price Comparison API

Request

tldstringRequiredPath

The ending without the dot (ai); lowercased, a leading dot stripped.

fieldsstringOptionalQuery

Comma-separated top-level keys to keep; an unknown key answers 400 unsupported_field.

curl -X GET "https://api.unique.domains/v1/prices/tlds/io"

const response = await fetch("https://api.unique.domains/v1/prices/tlds/io", {
    method: "GET",
});

const data = await response.json();
console.log(data);

import requests

response = requests.get(
    "https://api.unique.domains/v1/prices/tlds/io",
)

print(response.json())

req, err := http.NewRequest("GET", "https://api.unique.domains/v1/prices/tlds/io", nil)
if err != nil {
    panic(err)
}

res, err := http.DefaultClient.Do(req)

$ch = curl_init();
curl_setopt_array($ch, [
    CURLOPT_URL => "https://api.unique.domains/v1/prices/tlds/io",
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => "GET",
]);
$response = curl_exec($ch);

uri = URI("https://api.unique.domains/v1/prices/tlds/io")
request = Net::HTTP::Get.new(uri)

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |http| http.request(request) }

Response

registrarstring

namestring

homepageUrlstring

purchasePricenumber

renewalPricenumber

transferPricenumber

currencystring

isPromoboolean

First year is a promotion.

regularPurchasePricenumber

renewalTrapboolean

Renewal at least twice the first year and $10 more.

cheapestboolean

Lowest first year.

cheapestRenewalboolean

Lowest renewal.

cheapestTransferboolean

Lowest transfer-in.

Errors

not_found404

Not found

rate_limited429

Too many requests

internal500

Unexpected error

200 · application/jsonExample

{
  "data": [
    {
      "registrar": "cloudflare",
      "name": "Cloudflare",
      "homepageUrl": "https://www.cloudflare.com/products/registrar/",
      "purchasePrice": 38.5,
      "renewalPrice": 38.5,
      "transferPrice": 38.5,
      "currency": "USD",
      "isPromo": false,
      "renewalTrap": false,
      "cheapest": true,
      "cheapestRenewal": true,
      "cheapestTransfer": true
    }
  ],
  "meta": {
    "asOf": "2026-11-05T08:00:00Z",
    "cursor": null,
    "limit": null
  },
  "links": {
    "self": "https://api.unique.domains/v1/prices/tlds/io",
    "next": null,
    "register": null,
    "product": null,
    "dataset": null
  }
}

List TLD prices

Request

Response

Errors

Related endpoints