Instead of ‘login’ and ‘password’ use your credentials from https://app.dataforseo.com/api-access

            

# Instead of 'login' and 'password' use your credentials from https://app.dataforseo.com/api-access 
login="login" 
password="password" 
cred="$(printf ${login}:${password} | base64)" 
curl --location --request POST "https://api.dataforseo.com/v3/dataforseo_labs/bulk_keyword_difficulty/live" 
--header "Authorization: Basic ${cred}"  
--header "Content-Type: application/json" 
--data-raw "[
    {
        "keywords": [
            "buy laptop",
            "cheap laptops for sale",
            "purchase laptop"
        ],
        "location_code": 2840,
        "language_code": "en"
    }
]"

        

<?php
// You can download this file from here https://cdn.dataforseo.com/v3/examples/php/php_RestClient.zip
require('RestClient.php');
$api_url = 'https://api.dataforseo.com/';
// Instead of 'login' and 'password' use your credentials from https://app.dataforseo.com/api-access
$client = new RestClient($api_url, null, 'login', 'password');

$post_array = array();
// simple way to set a task
$post_array[] = array(
   "keywords" => [
      "buy laptop",
      "cheap laptops for sale",
      "purchase laptop"
   ],
   "language_name" => "English",
   "location_code" => 2840
);
try {
   // POST /v3/dataforseo_labs/bulk_keyword_difficulty/live
   $result = $client->post('/v3/dataforseo_labs/bulk_keyword_difficulty/live', $post_array);
   print_r($result);
   // do something with post result
} catch (RestClientException $e) {
   echo "n";
   print "HTTP code: {$e->getHttpCode()}n";
   print "Error code: {$e->getCode()}n";
   print "Message: {$e->getMessage()}n";
   print  $e->getTraceAsString();
   echo "n";
}
$client = null;
?>

            

from client import RestClient
# You can download this file from here https://cdn.dataforseo.com/v3/examples/python/python_Client.zip
client = RestClient("login", "password")
post_data = dict()
# simple way to set a task
post_data[len(post_data)] = dict(
    keywords=[
        "buy laptop",
        "cheap laptops for sale",
        "purchase laptop"
    ],
    location_name="United States",
    language_name="English"
)
# POST /v3/dataforseo_labs/bulk_keyword_difficulty/live
response = client.post("/v3/dataforseo_labs/bulk_keyword_difficulty/live", post_data)
# you can find the full list of the response codes here https://docs.dataforseo.com/v3/appendix/errors
if response["status_code"] == 20000:
    print(response)
    # do something with result
else:
    print("error. Code: %d Message: %s" % (response["status_code"], response["status_message"]))



        

            


const post_array = [];

post_array.push({
  "keywords": [
    "buy laptop",
    "cheap laptops for sale",
    "purchase laptop"
  ],
  "language_name": "English",
  "location_code": 2840
});

const axios = require('axios');

axios({
  method: 'post',
  url: 'https://api.dataforseo.com/v3/dataforseo_labs/bulk_keyword_difficulty/live',
  auth: {
    username: 'login',
    password: 'password'
  },
  data: post_array,
  headers: {
    'content-type': 'application/json'
  }
}).then(function (response) {
  var result = response['data']['tasks'];
  // Result data
  console.log(result);
}).catch(function (error) {
  console.log(error);
});


        

            

using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Text;
using System.Threading.Tasks;

namespace DataForSeoDemos
{
    public static partial class Demos
    {
        public static async Task dataforseo_labs_bulk_keyword_difficulty_live()
        {
            var httpClient = new HttpClient
            {
                BaseAddress = new Uri("https://api.dataforseo.com/"),
                // Instead of 'login' and 'password' use your credentials from https://app.dataforseo.com/api-access
                DefaultRequestHeaders = { Authorization = new AuthenticationHeaderValue("Basic", Convert.ToBase64String(Encoding.ASCII.GetBytes("login:password"))) }
            };
            var postData = new List<object>();
            postData.Add(new
            {
                keywords = new[]
                {
                    "buy laptop",
                    "cheap laptops for sale",
                    "purchase laptop"
                },
                location_name = "United States",
                language_name = "English"
            });
            // POST /v3/dataforseo_labs/bulk_keyword_difficulty/live
            // the full list of possible parameters is available in documentation
            var taskPostResponse = await httpClient.PostAsync("/v3/dataforseo_labs/bulk_keyword_difficulty/live", new StringContent(JsonConvert.SerializeObject(postData)));
            var result = JsonConvert.DeserializeObject(await taskPostResponse.Content.ReadAsStringAsync());
            // you can find the full list of the response codes here https://docs.dataforseo.com/v3/appendix/errors
            if (result.status_code == 20000)
            {
                // do something with result
                Console.WriteLine(result);
            }
            else
                Console.WriteLine($"error. Code: {result.status_code} Message: {result.status_message}");
        }
    }
}


        

The above command returns JSON structured like this:

{
    "version": "0.1.20211130",
    "status_code": 20000,
    "status_message": "Ok.",
    "time": "0.1214 sec.",
    "cost": 0.0103,
    "tasks_count": 1,
    "tasks_error": 0,
    "tasks": [
        {
            "id": "12031501-1535-0366-0000-67d19331f3d9",
            "status_code": 20000,
            "status_message": "Ok.",
            "time": "0.0211 sec.",
            "cost": 0.0103,
            "result_count": 1,
            "path": [
                "v3",
                "dataforseo_labs",
                "bulk_keyword_difficulty",
                "live"
            ],
            "data": {
                "api": "dataforseo_labs",
                "function": "bulk_keyword_difficulty",
                "keywords": [
                    "buy laptop",
                    "cheap laptops for sale",
                    "purchase laptop"
                ],
                "location_code": 2840,
                "language_code": "en"
            },
            "result": [
                {
                    "location_code": 2840,
                    "language_code": "en",
                    "total_count": 3,
                    "items_count": 3,
                    "items": [
                        {
                            "keyword": "buy laptop",
                            "keyword_difficulty": 88
                        },
                        {
                            "keyword": "cheap laptops for sale",
                            "keyword_difficulty": 59
                        },
                        {
                            "keyword": "purchase laptop",
                            "keyword_difficulty": 78
                        }
                    ]
                }
            ]
        }
    ]
}