Domain availability API

Ask whether a domain name is free and read its status, drop day, price today and registry facts as JSON. The free call reads the stored answer; a key adds a live check, and lists of up to 100 names need a paid RapidAPI subscription or the Investor plan.

Without a key: the stored status, drop day, price today and registry facts of one name.
With a key: a live check with the registry and a registrar. Up to 100 names in one call need a paid RapidAPI subscription or the Investor plan.
Free calls need no key: 60 calls an hour and 100 a day from one address.

Try it

curl -X GET "https://api.unique.domains/v1/names/get.plumbing"

const response = await fetch("https://api.unique.domains/v1/names/get.plumbing", {
    method: "GET",
});

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

import requests

response = requests.get(
    "https://api.unique.domains/v1/names/get.plumbing",
)

print(response.json())

req, err := http.NewRequest("GET", "https://api.unique.domains/v1/names/get.plumbing", 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/names/get.plumbing",
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => "GET",
]);
$response = curl_exec($ch);

uri = URI("https://api.unique.domains/v1/names/get.plumbing")
request = Net::HTTP::Get.new(uri)

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

200 · application/jsonExample

{
  "data": {
    "id": "dom_4efccac7-d9df-4c96-a076-3e0cc64220ec",
    "name": "get.plumbing",
    "ending": "plumbing",
    "tracked": true,
    "status": "for_sale",
    "lifecycle": "active",
    "drop": {
      "kind": "none"
    },
    "ownableNow": false,
    "price": {
      "kind": "aftermarket",
      "firstYear": null,
      "registrar": null,
      "renewal": null,
      "transfer": null,
      "isPromo": null,
      "renewalTrap": false
    },
    "registry": {
      "createdAt": "2020-06-03T08:30:53.000Z",
      "updatedAt": "2026-08-12T04:41:40.000Z",
      "expiresAt": "2027-06-03T08:30:53.000Z",
      "registryUpdatedAt": "2026-10-22T13:39:28.000Z",
      "registrar": {
        "name": "GoDaddy.com, LLC",
        "ianaId": 146,
        "url": null
      }
    },
    "parking": "afternic",
    "length": 3,
    "format": null,
    "shape": "single",
    "word": {
      "id": "wrd_23922",
      "word": "get",
      "slug": "get"
    },
    "rating": {
      "band": "prime"
    },
    "comps": {
      "tier": "same_word",
      "count": 10,
      "medianUsd": 2677,
      "endingsSoldOn": 0
    }
  },
  "meta": {
    "asOf": null,
    "cursor": null,
    "limit": null
  },
  "links": {
    "self": "https://api.unique.domains/v1/names/get.plumbing",
    "next": null,
    "register": null,
    "product": null,
    "dataset": null
  }
}

Endpoints

GET/names/{name}The stored answer for one domain name: status, drop day, price today, registry facts, word facts and similar sales.Free POST/names/{name}/checkReads one name live from its registry and a registrar, stores the answer and returns the keyed name resource.Paid POST/names/batchThe keyed name resource for up to 100 names in one call.Paid

Ways to call it

No keyThe call above runs from any language or tool, as it is.Read the endpoint reference

RapidAPIA paid subscription to this listing opens its paid endpoints.Domain Availability API on RapidAPI

Node.jsnpm install @uniquedomains/domain-availabilitynpx @uniquedomains/domain-availability get.plumbing

Member keyThe Founder and Investor plans include a key of their own.Compare the two plans

Domain availability API questions

Contact me

Is the availability check live?

The free call reads the stored answer, never live. POST /names/{name}/check reads the name live from its registryRegistryThe organisation that runs an ending, like the company behind .com. It sets the rules and the price registrars pay.Read the definition and a registrarRegistrarThe company you buy and renew a domain through, such as Namecheap or GoDaddy. It does not own the name, it only registers it for you.Read the definition; it needs a key and counts one live check when the live read runs, within the key's monthly live checks and at most 200 a day per account.

How many calls are free?

One name at a time is free: no key, 60 calls an hour and 100 a day from one address. Up to 100 names in one call needs a paid RapidAPI subscription to the Domain Availability API, or a member key on the Investor plan.

What does a name nobody has checked return?

A name the catalog has not stored answers 200 with empty facts and tracked set to false, never a 404. The live check stores it.