Retrieve Classification
curl --request GET \
--url https://api.signa.so/v1/classifications/{class_number} \
--header 'Authorization: Bearer <token>'import requests
url = "https://api.signa.so/v1/classifications/{class_number}"
headers = {"Authorization": "Bearer <token>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};
fetch('https://api.signa.so/v1/classifications/{class_number}', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.signa.so/v1/classifications/{class_number}",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"net/http"
"io"
)
func main() {
url := "https://api.signa.so/v1/classifications/{class_number}"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Add("Authorization", "Bearer <token>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.get("https://api.signa.so/v1/classifications/{class_number}")
.header("Authorization", "Bearer <token>")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.signa.so/v1/classifications/{class_number}")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'
response = http.request(request)
puts response.read_body{
"class_number": 25,
"object": "classification",
"title": "Clothing, footwear, headwear",
"description": "Clothing, footwear, headwear",
"category": "goods",
"terms": ["footwear*", "sports shoes", "sandals", "hats"]
}
Classification
Retrieve Classification
Retrieve a single Nice classification with its full term list
GET
/
v1
/
classifications
/
{class_number}
Retrieve Classification
curl --request GET \
--url https://api.signa.so/v1/classifications/{class_number} \
--header 'Authorization: Bearer <token>'import requests
url = "https://api.signa.so/v1/classifications/{class_number}"
headers = {"Authorization": "Bearer <token>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};
fetch('https://api.signa.so/v1/classifications/{class_number}', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.signa.so/v1/classifications/{class_number}",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"net/http"
"io"
)
func main() {
url := "https://api.signa.so/v1/classifications/{class_number}"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Add("Authorization", "Bearer <token>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.get("https://api.signa.so/v1/classifications/{class_number}")
.header("Authorization", "Bearer <token>")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.signa.so/v1/classifications/{class_number}")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'
response = http.request(request)
puts response.read_body{
"class_number": 25,
"object": "classification",
"title": "Clothing, footwear, headwear",
"description": "Clothing, footwear, headwear",
"category": "goods",
"terms": ["footwear*", "sports shoes", "sandals", "hats"]
}
Overview
Returns a single Nice classification (1-45) with its title, description, category (goods or services), and the canonical list of terms registered to that class.Path Parameters
integer
required
Nice class number (1-45).
Response
This endpoint is publicly cacheable, so the response never includesrequest_id.
integer
Nice class number.
string
Always
classification.string
Class title.
string
Class description.
string
goods or services.string[]
Canonical term list.
{
"class_number": 25,
"object": "classification",
"title": "Clothing, footwear, headwear",
"description": "Clothing, footwear, headwear",
"category": "goods",
"terms": ["footwear*", "sports shoes", "sandals", "hats"]
}
Code Examples
curl "https://api.signa.so/v1/classifications/25" \
-H "Authorization: Bearer sig_YOUR_KEY"
import { Signa } from "@signa-so/sdk";
const signa = new Signa({ api_key: process.env.SIGNA_API_KEY });
const cls = await signa.references.classification(25);
Errors
| Status | Type | Description |
|---|---|---|
| 400 | validation_error | Class number outside 1-45 |
| 401 | unauthorized | Missing or invalid API key |
| 403 | forbidden | API key lacks trademarks:read scope |
| 404 | not_found | Class not loaded in reference data |
Related Endpoints
- List Classifications
- List Goods & Services, browse and search the pre-approved terms catalog
- Suggest Classifications, AI-assisted class suggestion (classes only)
- Suggest Goods & Services, classes with filing-ready wording per class