Доступ

                        
// Входные данные
$url = "https://data.av100.org/profile.ashx";
$request_params = array(
    "key" => "867983b5-d66d-44d7-b440-5bd00b0b8203",
);

$get_params = http_build_query($request_params);

// Запрос к серверу
$response = file_get_contents($url."?".$get_params);
// Преобразование ответа
$result = json_decode($response);
                        
                    

                        
import requests

url = "https://data.av100.org/profile.ashx"

# входные данные
params = {
    "key": "867983b5-d66d-44d7-b440-5bd00b0b8203",
}

# отправка запроса
response = requests.post(
    url=url,
    params=params,
)

# преобразование ответа к словарю
data = response.json()
                        
                    

                        
using Newtonsoft.Json;
class Program
{
    static async Task Main(string[] args)
    {
        string end_point = "https://data.av100.org/profile.ashx";
        Dictionary dict_params = new()
        {
            { "key", "867983b5-d66d-44d7-b440-5bd00b0b8203" }
        };

        string url_params = string.Join("&", dict_params.Select(kvp => $"{kvp.Key}={kvp.Value}"));
        string url = $"{end_point}?{url_params}";

        HttpClient client = new();
        string response_body = await client.GetAsync(url).Result.Content.ReadAsStringAsync();

        var result = JsonConvert.DeserializeObject(response_body);
    }
}