PaidWord Intelligence API
List word fits
GET/words/{word}/fitMember key
How well the word fits each ending whose keywords list it.
The stored pair fit of the word on each ending (basis: rated), else 50 (basis: default), in the keyword's rank on the ending. tld asks one ending.
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.
Request
wordstringRequiredPathThe catalog slug, the word, or wrd_<id>.
tldstringOptionalQueryOne bare ending.
limitintegerOptionalQueryRows, 1 to 50.
fieldsstringOptionalQueryComma-separated top-level keys to keep; an unknown key answers 400 unsupported_field.
curl -X GET "https://api.unique.domains/v1/words/harbor/fit?tld=travel" \ -H "Authorization: Bearer YOUR_MEMBER_KEY"
const response = await fetch("https://api.unique.domains/v1/words/harbor/fit?tld=travel", {
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/fit?tld=travel",
headers={
"Authorization": "Bearer YOUR_MEMBER_KEY",
},
)
print(response.json())req, err := http.NewRequest("GET", "https://api.unique.domains/v1/words/harbor/fit?tld=travel", 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/fit?tld=travel",
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/fit?tld=travel")
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
endingstringfitintegerbasisstringErrors
{
"data": [
{
"ending": "travel",
"fit": 82,
"basis": "rated"
}
],
"meta": {
"asOf": "2026-11-05T08:00:00Z",
"cursor": null,
"limit": null
},
"links": {
"self": "https://api.unique.domains/v1/words/harbor/fit?tld=travel",
"next": null,
"register": null,
"product": null,
"dataset": null
}
}
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