FreeWord Intelligence API
List word categories
GET/words/categoriesNo key
The catalog's word categories, by name.
The category filter values of GET /words. The catch-all general category is left out, as on the profile. The whole list, no cursor.
AccessNo key. Limited per address; a key adds the paid fields.
BillingOne call.
FormatsJSON
Request
fieldsstringOptionalQueryComma-separated top-level keys to keep; an unknown key answers 400 unsupported_field.
curl -X GET "https://api.unique.domains/v1/words/categories"
const response = await fetch("https://api.unique.domains/v1/words/categories", {
method: "GET",
});
const data = await response.json();
console.log(data);import requests
response = requests.get(
"https://api.unique.domains/v1/words/categories",
)
print(response.json())req, err := http.NewRequest("GET", "https://api.unique.domains/v1/words/categories", 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/words/categories",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_CUSTOMREQUEST => "GET",
]);
$response = curl_exec($ch);uri = URI("https://api.unique.domains/v1/words/categories")
request = Net::HTTP::Get.new(uri)
response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |http| http.request(request) }Response
slugstringnamestring | nullErrors
{
"data": [
{
"slug": "travel",
"name": "Travel"
}
],
"meta": {
"asOf": "2026-11-05T08:00:00Z",
"cursor": null,
"limit": null
},
"links": {
"self": "https://api.unique.domains/v1/words/categories",
"next": null,
"register": null,
"product": null,
"dataset": null
}
}
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Perplexity