Все данные об авто
в одном API-запросе

curl https://apipoint.ru/api/call \
    -X POST \
    -H 'Authorization: Bearer <ваш токен>' \
    -H 'Content-Type: application/json' \
    -H 'Accept: application/json' \
    -d '{"sources":"eaistobyvinorgosnum","vin":"Y4K8844WXKB001247","gosnomer":"Н123АН181"}'

import requests

url = "https://apipoint.ru/api/call"
headers = {
    "Authorization": "Bearer <ваш токен>",
    "Content-Type": "application/json",
    "Accept": "application/json"
}
payload = {
    "sources": "eaistobyvinorgosnum",
    "vin": "Y4K8844WXKB001247",
    "gosnomer": "Н123АН181"
}

response = requests.post(url, json=payload, headers=headers)
print(response.json())

<?php

$curl = curl_init();

curl_setopt_array($curl, [
    CURLOPT_URL => 'https://apipoint.ru/api/call',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_POST => true,
    CURLOPT_POSTFIELDS => json_encode([
        'sources' => 'eaistobyvinorgosnum',
        'vin' => 'Y4K8844WXKB001247',
        'gosnomer' => 'Н123АН181'
    ]),
    CURLOPT_HTTPHEADER => [
        'Authorization: Bearer <ваш токен>',
        'Content-Type: application/json',
        'Accept: application/json'
    ],
]);

$response = curl_exec($curl);
curl_close($curl);
print_r(json_decode($response, true));

using var client = new HttpClient();
client.DefaultRequestHeaders.Add("Authorization", "Bearer <ваш токен>");
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

var payload = new {
    sources = "eaistobyvinorgosnum",
    vin = "Y4K8844WXKB001247",
    gosnomer = "Н123АН181"
};

var response = await client.PostAsJsonAsync("https://apipoint.ru/api/call", payload);
string json = await response.Content.ReadAsStringAsync();
Console.WriteLine(json);