PaidWord Intelligence API

Get word trademarks

GET/words/{word}/trademarksMember key

A word's trademark counts and its exact-match marks.

Live US and EU trademark counts with their classes, and up to 50 exact-match trademarks (live first, newest filing first) before the office and status filters. Zero live trademarks means no exact match was found, never that a name is safe.

AccessA member key (Founder or Investor) or a paid RapidAPI subscription to this API.

BillingOne call.

PlanInvestor plan. A Founder key answers 403 plan_required.

FormatsJSON

Keep a key on a server: a page a visitor loads shows it to everyone.

Connect on RapidAPI

Request

wordstringRequiredPath

The catalog slug, the word, or wrd_<id>.

officestring: US, EUOptionalQuery

Keep the marks of one office.

statusstring: live, deadOptionalQuery

Keep live or dead marks.

fieldsstringOptionalQuery

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

curl -X GET "https://api.unique.domains/v1/words/harbor/trademarks" \
  -H "Authorization: Bearer YOUR_MEMBER_KEY"

const response = await fetch("https://api.unique.domains/v1/words/harbor/trademarks", {
    method: "GET",
    headers: {
        "Authorization": "Bearer YOUR_MEMBER_KEY",
    },
});

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

import requests

response = requests.get(
    "https://api.unique.domains/v1/words/harbor/trademarks",
    headers={
        "Authorization": "Bearer YOUR_MEMBER_KEY",
    },
)

print(response.json())

req, err := http.NewRequest("GET", "https://api.unique.domains/v1/words/harbor/trademarks", nil)
if err != nil {
    panic(err)
}
req.Header.Set("Authorization", "Bearer YOUR_MEMBER_KEY")

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

$ch = curl_init();
curl_setopt_array($ch, [
    CURLOPT_URL => "https://api.unique.domains/v1/words/harbor/trademarks",
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => "GET",
    CURLOPT_HTTPHEADER => [
        "Authorization: Bearer YOUR_MEMBER_KEY",
    ],
]);
$response = curl_exec($ch);

uri = URI("https://api.unique.domains/v1/words/harbor/trademarks")
request = Net::HTTP::Get.new(uri)
request["Authorization"] = "Bearer YOUR_MEMBER_KEY"

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

Response

usobject

euobject

marksobject[]

Errors

validation_failed400

A value is not valid

not_found404

Not found

rate_limited429

Too many requests

internal500

Unexpected error

200 · application/jsonExample

{
  "data": {
    "us": {
      "liveCount": 3,
      "classes": [
        "009",
        "042"
      ]
    },
    "eu": {
      "liveCount": null,
      "classes": []
    },
    "marks": [
      {
        "office": "US",
        "serial": "97412233",
        "mark": "HARBOR",
        "registration": "7011245",
        "status": "live",
        "owner": "Harbor Labs Inc.",
        "filed": "2022-05-17",
        "registered": "2023-04-11",
        "niceClasses": [
          "009"
        ],
        "goods": "Downloadable software for data backup",
        "url": "https://tsdr.uspto.gov/#caseNumber=97412233"
      }
    ]
  },
  "meta": {
    "asOf": "2026-11-05T08:00:00Z",
    "cursor": null,
    "limit": null
  },
  "links": {
    "self": "https://api.unique.domains/v1/words/harbor/trademarks",
    "next": null,
    "register": null,
    "product": null,
    "dataset": null
  }
}

Get word trademarks

Request

Response

Errors

Related endpoints