curl --request GET \
  --url https://api.16tms.com/api/v1/groups \
  --header 'X-API-KEY: <api-key>'

import requests

url = "https://api.16tms.com/api/v1/groups"

headers = {"X-API-KEY": "<api-key>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {'X-API-KEY': '<api-key>'}};

fetch('https://api.16tms.com/api/v1/groups', 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.16tms.com/api/v1/groups",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "X-API-KEY: <api-key>"
  ],
]);

$response = curl_exec($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.16tms.com/api/v1/groups"

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

	req.Header.Add("X-API-KEY", "<api-key>")

	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.16tms.com/api/v1/groups")
  .header("X-API-KEY", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.16tms.com/api/v1/groups")

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

request = Net::HTTP::Get.new(url)
request["X-API-KEY"] = '<api-key>'

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

{
  "success": true,
  "message": "Tournament groups fetched successfully",
  "data": {
    "items": [
      {
        "id": "61e28f2f-367a-4cfc-8488-3a3aa4e4e04e",
        "tournamentRoundId": "44accbab-48f7-4fe0-8085-df45903863a8",
        "groupName": "Group 2",
        "maxParticipants": 2,
        "participantCount": 1,
        "versions": [
          1
        ]
      },
      {
        "id": "ee6c62d0-0802-4327-9961-5ed446f5702f",
        "tournamentRoundId": "44accbab-48f7-4fe0-8085-df45903863a8",
        "groupName": "Group 1",
        "maxParticipants": 2,
        "participantCount": 1,
        "versions": [
          1
        ]
      }
    ],
    "totalCount": 2,
    "pageNumber": 1,
    "pageSize": 20,
    "totalPages": 1
  },
  "meta": {
    "traceId": "00-6d8642838e87422cf7542f4ffd03d43c-12bb91840eab74d5-00",
    "elapsedMs": 5.19,
    "serverTimestamp": "2026-02-17T12:23:19.2748999Z"
  }
}