curl --request GET \
  --url https://www.closient.com/resolver/api/v1/verify/01/{gtin}/21/{serial_number}

import requests

url = "https://www.closient.com/resolver/api/v1/verify/01/{gtin}/21/{serial_number}"

response = requests.get(url)

print(response.text)

const options = {method: 'GET'};

fetch('https://www.closient.com/resolver/api/v1/verify/01/{gtin}/21/{serial_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://www.closient.com/resolver/api/v1/verify/01/{gtin}/21/{serial_number}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
]);

$response = curl_exec($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://www.closient.com/resolver/api/v1/verify/01/{gtin}/21/{serial_number}"

	req, _ := http.NewRequest("GET", url, nil)

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

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://www.closient.com/resolver/api/v1/verify/01/{gtin}/21/{serial_number}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://www.closient.com/resolver/api/v1/verify/01/{gtin}/21/{serial_number}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)

response = http.request(request)
puts response.read_body

{
  "anomalies": [
    {
      "description": "Serial previously scanned at POS at a different retail location.",
      "priorEvent": {
        "location": "49.2827,-123.1207",
        "retailer": "RetailerA",
        "scannedAt": "2026-04-10T14:30:00Z"
      },
      "type": "duplicate_retail_scan"
    }
  ],
  "gtin": "09521101530018",
  "recommendation": "flag_for_review",
  "scanHistory": {
    "consumerScans": 3,
    "distinctRetailLocations": 2,
    "firstSeen": "2026-04-01T10:00:00Z",
    "retailerScans": 2,
    "totalScans": 5
  },
  "serialNumber": "DUPE001",
  "verificationStatus": "suspect",
  "verifiedAt": "2026-05-09T20:00:00Z"
}

{
  "detail": "The requested resource was not found.",
  "error_code": "not_found",
  "retryable": false,
  "status": 404,
  "timestamp": "2026-03-31T12:00:00+00:00",
  "title": "Not Found",
  "type": "https://closient.com/docs/errors/not_found"
}

{
  "detail": "The requested resource was not found.",
  "error_code": "not_found",
  "retryable": false,
  "status": 404,
  "timestamp": "2026-03-31T12:00:00+00:00",
  "title": "Not Found",
  "type": "https://closient.com/docs/errors/not_found"
}

{
  "detail": "The requested resource was not found.",
  "error_code": "not_found",
  "retryable": false,
  "status": 404,
  "timestamp": "2026-03-31T12:00:00+00:00",
  "title": "Not Found",
  "type": "https://closient.com/docs/errors/not_found"
}

{
  "detail": "GTIN must be 8-14 digits.",
  "error": "invalid_gtin"
}

{
  "detail": "The requested resource was not found.",
  "error_code": "not_found",
  "retryable": false,
  "status": 404,
  "timestamp": "2026-03-31T12:00:00+00:00",
  "title": "Not Found",
  "type": "https://closient.com/docs/errors/not_found"
}