curl bach конвертировать в curl PHP

Это если гет, а пост

curl_setopt($ch, CURLOPT_POSTFIELDS, $p);

Если склероз не изменяет, то для мультипарт не надо хттп_бьюилд_квери.

Метод POST, данные эти (этот запрос из консоли проходит)

curl 'https://app.neilpatel.com/api/domain_top_countries' \
  -H 'authority: app.neilpatel.com' \
  -H 'pragma: no-cache' \
  -H 'cache-control: no-cache' \
  -H 'sec-ch-ua: " Not;A Brand";v="99", "Yandex";v="91", "Chromium";v="91"' \
  -H 'accept: application/json, text/plain, */*' \
  -H 'dnt: 1' \
  -H 'authorization: Bearer app#unlogged__ca314491fc3076cde84249aadee7390867315a5a' \
  -H 'sec-ch-ua-mobile: ?0' \
  -H 'user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.164 YaBrowser/21.6.4.786 Yowser/2.5 Safari/537.36' \
  -H 'content-type: application/json;charset=UTF-8' \
  -H 'origin: https://app.neilpatel.com' \
  -H 'sec-fetch-site: same-origin' \
  -H 'sec-fetch-mode: cors' \
  -H 'sec-fetch-dest: empty' \
  -H 'referer: https://app.neilpatel.com/en/traffic_analyzer/overview?domain=smartvest.com&locId=2643&lang=ru' \
  -H 'accept-language: ru,en;q=0.9' \
  -H 'cookie: _vwo_uuid_v2=D5A278168CABCC93C5145066AE261DBED|5666ddd2275d99f5073f8ce655917132; km_ai=UkK71Ym451v9jcJPO0ArO7hoNMU%3D; km_vs=1; _hjid=e8a3ee83-565e-427e-82bb-b8f35ea91f33; _hjFirstSeen=1; _ga=GA1.2.562800073.1630509268; _gid=GA1.2.36096469.1630509268; _vis_opt_s=1%7C; _vis_opt_test_cookie=1; _vwo_uuid=D5A278168CABCC93C5145066AE261DBED; _vwo_ds=3%241630509266%3A9.85814881%3A%3A; __zlcmid=15rkIbNxoYwtqlZ; amp_276990=64ifod5c40mEkwUZ2BrZKU...1fegupu23.1fegveiok.0.0.0; kvcd=1630509944017; km_lv=1630509944; _gat_UA-16137731-1=1; _gat_gtag_UA_16137731_1=1; _vwo_sn=0%3A5' \
--data-raw '{"domain":"smartvest.com","lang_locs":["en:2840","en:2826","ja:2392","en:2036","en:2124","ar:2004","en:2004","ps:2004","fa:2004","sq:2008","en:2008","ar:2012","en:2012","fr:2012","en:2016","ca:2020","en:2020","en:2024","kg:2024","pt:2024","en:2028","en:2032","es:2032","hy:2051","en:2051","ru:2051","es:2036","en:2040","de:2040","es:2040","az:2031","en:2031","ru:2031","ar:2048","en:2048","bn:2050","en:2050","en:2052","be:2112","en:2112","ru:2112","nl:2056","en:2056","fr:2056","de:2056","es:2056","en:2084","es:2084","en:2204","fr:2204","yo:2204","en:2064","en:2068","qu:2068","es:2068","bs:2070","hr:2070","en:2070","sr:2070","en:2072","tn:2072","pt:2076","zh_cn:2096","en:2096","ms:2096","bg:2100","en:2100","en:2854","fr:2854","en:2108","fr:2108","rn:2108","sw:2108","en:2116","km:2116","en:2120","fr:2120","fr:2124","es:2124","en:2132","pt:2132","en:2535","en:2140","fr:2140","ar:2148","en:2148","fr:2148","en:2152","es:2152","en:2170","es:2170","fr:2174","en:2184","en:2188","es:2188","en:2384","fr:2384","hr:2191","en:2191","en:2531","en:2196","el:2196","tr:2196","cs:2203","en:2203","ach:2180","fr:2180","kg:2180","in:2180","sw:2180","lua:2180","da:2208","en:2208","fo:2208","es:2208","ar:2262","en:2262","fr:2262","so:2262","en:2212","en:2214","es:2214","en:2218","es:2218","ar:2818","en:2818","en:2222","es:2222","en:2226","ar:2232","en:2232","en:2233","et:2233","ru:2233","en:2748","am:2231","en:2231","om:2231","so:2231","ti:2231","en:2583","en:2242","en:2246","fi:2246","es:2246","sv:2246","en:2250","fr:2250","es:2250","en:2258","fr:2258","en:2266","fr:2266","en:2268","ka:2268","en:2276","de:2276","es:2276","ak:2288","en:2288","ee:2288","gaa:2288","ha:2288","en:2300","el:2300","en:2308","en:2316","en:2320","es:2320","en:2831","fr:2831","en:2324","fr:2324","en:2624","en:2328","en:2332","fr:2332","ht:2332","en:2340","es:2340","zh:2344","zh_cn:2344","zh_tw:2344","zh_hk:2344","en:2344","en:2348","hu:2348","en:2352","is:2352","bn:2356","en:2356","gu:2356","hi:2356","kn:2356","ml:2356","mr:2356","pa:2356","ta:2356","te:2356","ban:2360","jw:2360","en:2360","id:2360","ar:2368","en:2368","ckb:2368","en:2372","ar:2376","en:2376","he:2376","en:2380","it:2380","es:2380","en:2388","en:2392","en:2832","fr:2832","ar:2400","en:2400","en:2398","kk:2398","ru:2398","en:2404","sw:2404","en:2296","ar:2414","en:2414","en:2417","ky:2417","ru:2417","en:2418","lo:2418","en:2428","lv:2428","lt:2428","ru:2428","ar:2422","hy:2422","en:2422","fr:2422","en:2426","st:2426","en:2430","ar:2434","en:2434","it:2434","en:2438","de:2438","en:2440","lt:2440","en:2442","fr:2442","de:2442","en:2450","fr:2450","mg:2450","ny:2454","en:2454","tum:2454","en:2458","ms:2458","en:2462","en:2466","fr:2466","en:2470","mt:2470","en:2584","ar:2478","en:2478","en:2480","fr:2480","mfe:2480","en:2484","es:2484","mo:2498","ro:2498","ru:2498","en:2492","en:2496","mn:2496","bs:2499","en:2499","sr:2499","ar:2504","en:2504","fr:2504","ny:2508","en:2508","pt:2508","sn:2508","sw:2508","my:2104","en:2104","af:2516","en:2516","de:2516","en:2520","en:2524","ne:2524","nl:2528","fy:2528","es:2528","en:2540","fr:2540","en:2554","mi:2554","en:2558","es:2558","en:2562","fr:2562","ha:2562","en:2566","ha:2566","ig:2566","pcm:2566","yo:2566","en:2570","en:2574","en:2807","mk:2807","en:2580","nb:2578","ar:2512","en:2512","en:2586","ps:2586","sd:2586","ur:2586","en:2585","ar:2275","en:2275","en:2598","en:2600","gn:2600","es:2600","en:2604","qu:2604","es:2604","ceb:2608","en:2608","fil:2608","tl:2608","en:2612","en:2616","pl:2616","en:2620","pt:2620","en:2630","es:2630","ar:2634","en:2634","fr:2178","kg:2178","in:2178","en:2642","de:2642","hu:2642","ro:2642","en:2643","ru:2643","en:2646","fr:2646","rw:2646","sw:2646","en:2654","en:2659","en:2662","en:2666","en:2670","en:2882","en:2674","it:2674","pt:2678","ar:2682","en:2682","en:2686","fr:2686","wo:2686","en:2688","sr:2688","en:2690","fr:2690","crs:2690","en:2694","kri:2694","zh:2702","zh_cn:2702","zh_tw:2702","zh_sg:2702","en:2702","ms:2702","ta:2702","en:2534","en:2703","sk:2703","en:2705","sl:2705","en:2090","ar:2706","en:2706","so:2706","af:2710","en:2710","nso:2710","st:2710","tn:2710","xh:2710","zu:2710","en:2410","ko:2410","eu:2724","ca:2724","en:2724","gl:2724","es:2724","en:2144","si:2144","ta:2144","fr:2740","en:2752","es:2752","sv:2752","en:2756","fr:2756","de:2756","it:2756","rm:2756","zh:2158","zh_cn:2158","zh_tw:2158","en:2158","en:2762","ru:2762","tg:2762","en:2834","sw:2834","en:2764","th:2764","en:2044","en:2270","wo:2270","pt:2626","en:2768","ee:2768","fr:2768","en:2772","en:2776","to:2776","zh_tw:2780","en:2780","es:2780","fr:2780","hi:2780","ar:2788","en:2788","fr:2788","en:2792","tr:2792","en:2795","ru:2795","tk:2795","uz:2795","en:2800","lg:2800","rw:2800","ach:2800","nyn:2800","nym:2800","sw:2800","en:2804","ru:2804","uk:2804","ar:2784","en:2784","hi:2784","fa:2784","ur:2784","fr:2826","it:2826","pt:2826","ru:2826","es:2826","zh_cn:2840","zh_tw:2840","da:2840","nl:2840","fr:2840","de:2840","ko:2840","pt:2840","ru:2840","es:2840","sv:2840","vi:2840","en:2858","es:2858","en:2860","ru:2860","uz:2860","en:2548","fr:2548","en:2336","en:2862","es:2862","zh_tw:2704","en:2704","fr:2704","vi:2704","en:2876","ar:2887","en:2887","ny:2894","tum:2894","en:2894","bem:2894","loz:2894","ny:2716","en:2716","sn:2716","tn:2716","zu:2716"]}' \
  --compressed

Тут https://app.neilpatel.com/en/traffic_analyzer введите в поисковую строку любой домен и в запросах будет POST запрос к  'https://app.neilpatel.com/api/domain_top_countries

его я и пытаюсь повторить

Пробую так

$ch = curl_init();

$url = "https://app.neilpatel.com/api/domain_top_countries";
$params = array( "domain"=>"smartvest.com", "lang_locs"=>"en:2840");
$url .= "?" . http_build_query($params);

curl_setopt($ch, CURLOPT_URL, $url);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');

curl_setopt($ch, CURLOPT_ENCODING, 'gzip, deflate');

curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_POST, 1);

$headers = array();
$headers[] = 'Authority: app.neilpatel.com';
$headers[] = 'Pragma: no-cache';
$headers[] = 'Cache-Control: no-cache';
$headers[] = 'Sec-Ch-Ua: \" Not;A Brand\";v=\"99\", \"Yandex\";v=\"91\", \"Chromium\";v=\"91\"';
$headers[] = 'Accept: application/json, text/plain, */*';
$headers[] = 'Dnt: 1';
$headers[] = 'Authorization: Bearer app#unlogged__ca314491fc3076cde84249aadee7390867315a5a';
$headers[] = 'Sec-Ch-Ua-Mobile: ?0';
$headers[] = 'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.164 YaBrowser/21.6.4.786 Yowser/2.5 Safari/537.36';
$headers[] = 'Content-Type: application/json;charset=UTF-8';
$headers[] = 'Origin: https://app.neilpatel.com';
$headers[] = 'Sec-Fetch-Site: same-origin';
$headers[] = 'Sec-Fetch-Mode: cors';
$headers[] = 'Sec-Fetch-Dest: empty';
$headers[] = 'Referer: https://app.neilpatel.com/en/traffic_analyzer/overview?domain=smartvest.com&locId=2643&lang=ru';
$headers[] = 'Accept-Language: ru,en;q=0.9';
$headers[] = 'Cookie: _vwo_uuid_v2=D5A278168CABCC93C5145066AE261DBED|5666ddd2275d99f5073f8ce655917132; km_ai=UkK71Ym451v9jcJPO0ArO7hoNMU%3D; km_vs=1; _hjid=e8a3ee83-565e-427e-82bb-b8f35ea91f33; _hjFirstSeen=1; _ga=GA1.2.562800073.1630509268; _gid=GA1.2.36096469.1630509268; _vis_opt_s=1%7C; _vis_opt_test_cookie=1; _vwo_uuid=D5A278168CABCC93C5145066AE261DBED; _vwo_ds=3%241630509266%3A9.85814881%3A%3A; __zlcmid=15rkIbNxoYwtqlZ; amp_276990=64ifod5c40mEkwUZ2BrZKU...1fegupu23.1fegveiok.0.0.0; kvcd=1630509944017; km_lv=1630509944; _gat_UA-16137731-1=1; _gat_gtag_UA_16137731_1=1; _vwo_sn=0%3A5';


curl_setopt($ch, CURLOPT_POSTFIELDS, $headers);

$result = curl_exec($ch);
if (curl_errno($ch)) {
    echo 'Error:' . curl_error($ch);
}
curl_close($ch);

var_dump($result);

получаю

Вот минимальный запрос, который проходит из консоли

curl 'https://app.neilpatel.com/api/domain_top_countries' \
  -H 'authorization: Bearer app#unlogged__ca314491fc3076cde84249aadee7390867315a5a' \
--data-raw '{"domain":"smartvest.com","lang_locs":["en:2840","en:2826","ja:2392","en:2036","en:2124","ar:2004","en:2004","ps:2004","fa:2004","sq:2008","en:2008","ar:2012","en:2012","fr:2012","en:2016","ca:2020","en:2020","en:2024","kg:2024","pt:2024","en:2028","en:2032","es:2032","hy:2051","en:2051","ru:2051","es:2036","en:2040","de:2040","es:2040","az:2031","en:2031","ru:2031","ar:2048","en:2048","bn:2050","en:2050","en:2052","be:2112","en:2112","ru:2112","nl:2056","en:2056","fr:2056","de:2056","es:2056","en:2084","es:2084","en:2204","fr:2204","yo:2204","en:2064","en:2068","qu:2068","es:2068","bs:2070","hr:2070","en:2070","sr:2070","en:2072","tn:2072","pt:2076","zh_cn:2096","en:2096","ms:2096","bg:2100","en:2100","en:2854","fr:2854","en:2108","fr:2108","rn:2108","sw:2108","en:2116","km:2116","en:2120","fr:2120","fr:2124","es:2124","en:2132","pt:2132","en:2535","en:2140","fr:2140","ar:2148","en:2148","fr:2148","en:2152","es:2152","en:2170","es:2170","fr:2174","en:2184","en:2188","es:2188","en:2384","fr:2384","hr:2191","en:2191","en:2531","en:2196","el:2196","tr:2196","cs:2203","en:2203","ach:2180","fr:2180","kg:2180","in:2180","sw:2180","lua:2180","da:2208","en:2208","fo:2208","es:2208","ar:2262","en:2262","fr:2262","so:2262","en:2212","en:2214","es:2214","en:2218","es:2218","ar:2818","en:2818","en:2222","es:2222","en:2226","ar:2232","en:2232","en:2233","et:2233","ru:2233","en:2748","am:2231","en:2231","om:2231","so:2231","ti:2231","en:2583","en:2242","en:2246","fi:2246","es:2246","sv:2246","en:2250","fr:2250","es:2250","en:2258","fr:2258","en:2266","fr:2266","en:2268","ka:2268","en:2276","de:2276","es:2276","ak:2288","en:2288","ee:2288","gaa:2288","ha:2288","en:2300","el:2300","en:2308","en:2316","en:2320","es:2320","en:2831","fr:2831","en:2324","fr:2324","en:2624","en:2328","en:2332","fr:2332","ht:2332","en:2340","es:2340","zh:2344","zh_cn:2344","zh_tw:2344","zh_hk:2344","en:2344","en:2348","hu:2348","en:2352","is:2352","bn:2356","en:2356","gu:2356","hi:2356","kn:2356","ml:2356","mr:2356","pa:2356","ta:2356","te:2356","ban:2360","jw:2360","en:2360","id:2360","ar:2368","en:2368","ckb:2368","en:2372","ar:2376","en:2376","he:2376","en:2380","it:2380","es:2380","en:2388","en:2392","en:2832","fr:2832","ar:2400","en:2400","en:2398","kk:2398","ru:2398","en:2404","sw:2404","en:2296","ar:2414","en:2414","en:2417","ky:2417","ru:2417","en:2418","lo:2418","en:2428","lv:2428","lt:2428","ru:2428","ar:2422","hy:2422","en:2422","fr:2422","en:2426","st:2426","en:2430","ar:2434","en:2434","it:2434","en:2438","de:2438","en:2440","lt:2440","en:2442","fr:2442","de:2442","en:2450","fr:2450","mg:2450","ny:2454","en:2454","tum:2454","en:2458","ms:2458","en:2462","en:2466","fr:2466","en:2470","mt:2470","en:2584","ar:2478","en:2478","en:2480","fr:2480","mfe:2480","en:2484","es:2484","mo:2498","ro:2498","ru:2498","en:2492","en:2496","mn:2496","bs:2499","en:2499","sr:2499","ar:2504","en:2504","fr:2504","ny:2508","en:2508","pt:2508","sn:2508","sw:2508","my:2104","en:2104","af:2516","en:2516","de:2516","en:2520","en:2524","ne:2524","nl:2528","fy:2528","es:2528","en:2540","fr:2540","en:2554","mi:2554","en:2558","es:2558","en:2562","fr:2562","ha:2562","en:2566","ha:2566","ig:2566","pcm:2566","yo:2566","en:2570","en:2574","en:2807","mk:2807","en:2580","nb:2578","ar:2512","en:2512","en:2586","ps:2586","sd:2586","ur:2586","en:2585","ar:2275","en:2275","en:2598","en:2600","gn:2600","es:2600","en:2604","qu:2604","es:2604","ceb:2608","en:2608","fil:2608","tl:2608","en:2612","en:2616","pl:2616","en:2620","pt:2620","en:2630","es:2630","ar:2634","en:2634","fr:2178","kg:2178","in:2178","en:2642","de:2642","hu:2642","ro:2642","en:2643","ru:2643","en:2646","fr:2646","rw:2646","sw:2646","en:2654","en:2659","en:2662","en:2666","en:2670","en:2882","en:2674","it:2674","pt:2678","ar:2682","en:2682","en:2686","fr:2686","wo:2686","en:2688","sr:2688","en:2690","fr:2690","crs:2690","en:2694","kri:2694","zh:2702","zh_cn:2702","zh_tw:2702","zh_sg:2702","en:2702","ms:2702","ta:2702","en:2534","en:2703","sk:2703","en:2705","sl:2705","en:2090","ar:2706","en:2706","so:2706","af:2710","en:2710","nso:2710","st:2710","tn:2710","xh:2710","zu:2710","en:2410","ko:2410","eu:2724","ca:2724","en:2724","gl:2724","es:2724","en:2144","si:2144","ta:2144","fr:2740","en:2752","es:2752","sv:2752","en:2756","fr:2756","de:2756","it:2756","rm:2756","zh:2158","zh_cn:2158","zh_tw:2158","en:2158","en:2762","ru:2762","tg:2762","en:2834","sw:2834","en:2764","th:2764","en:2044","en:2270","wo:2270","pt:2626","en:2768","ee:2768","fr:2768","en:2772","en:2776","to:2776","zh_tw:2780","en:2780","es:2780","fr:2780","hi:2780","ar:2788","en:2788","fr:2788","en:2792","tr:2792","en:2795","ru:2795","tk:2795","uz:2795","en:2800","lg:2800","rw:2800","ach:2800","nyn:2800","nym:2800","sw:2800","en:2804","ru:2804","uk:2804","ar:2784","en:2784","hi:2784","fa:2784","ur:2784","fr:2826","it:2826","pt:2826","ru:2826","es:2826","zh_cn:2840","zh_tw:2840","da:2840","nl:2840","fr:2840","de:2840","ko:2840","pt:2840","ru:2840","es:2840","sv:2840","vi:2840","en:2858","es:2858","en:2860","ru:2860","uz:2860","en:2548","fr:2548","en:2336","en:2862","es:2862","zh_tw:2704","en:2704","fr:2704","vi:2704","en:2876","ar:2887","en:2887","ny:2894","tum:2894","en:2894","bem:2894","loz:2894","ny:2716","en:2716","sn:2716","tn:2716","zu:2716"]}' \
  --compressed

Попробовал еще так, тоже без эффекта

$headers = array();
$headers[] = 'Authority: app.neilpatel.com';
$headers[] = 'Pragma: no-cache';
$headers[] = 'Cache-Control: no-cache';
$headers[] = 'Sec-Ch-Ua: \" Not;A Brand\";v=\"99\", \"Yandex\";v=\"91\", \"Chromium\";v=\"91\"';
$headers[] = 'Accept: application/json, text/plain, */*';
$headers[] = 'Dnt: 1';
$headers[] = 'Authorization: Bearer app#unlogged__ca314491fc3076cde84249aadee7390867315a5a';
$headers[] = json_encode(["domain"=>"smartvest.com","lang_locs"=>["en=>2840","en=>2826","ja=>2392","en=>2036","en=>2124","ar=>2004","en=>2004","ps=>2004","fa=>2004","sq=>2008","en=>2008","ar=>2012","en=>2012","fr=>2012","en=>2016","ca=>2020","en=>2020","en=>2024","kg=>2024","pt=>2024","en=>2028","en=>2032","es=>2032","hy=>2051","en=>2051","ru=>2051","es=>2036","en=>2040","de=>2040","es=>2040","az=>2031","en=>2031","ru=>2031","ar=>2048","en=>2048","bn=>2050","en=>2050","en=>2052","be=>2112","en=>2112","ru=>2112","nl=>2056","en=>2056","fr=>2056","de=>2056","es=>2056","en=>2084","es=>2084","en=>2204","fr=>2204","yo=>2204","en=>2064","en=>2068","qu=>2068","es=>2068","bs=>2070","hr=>2070","en=>2070","sr=>2070","en=>2072","tn=>2072","pt=>2076","zh_cn=>2096","en=>2096","ms=>2096","bg=>2100","en=>2100","en=>2854","fr=>2854","en=>2108","fr=>2108","rn=>2108","sw=>2108","en=>2116","km=>2116","en=>2120","fr=>2120","fr=>2124","es=>2124","en=>2132","pt=>2132","en=>2535","en=>2140","fr=>2140","ar=>2148","en=>2148","fr=>2148","en=>2152","es=>2152","en=>2170","es=>2170","fr=>2174","en=>2184","en=>2188","es=>2188","en=>2384","fr=>2384","hr=>2191","en=>2191","en=>2531","en=>2196","el=>2196","tr=>2196","cs=>2203","en=>2203","ach=>2180","fr=>2180","kg=>2180","in=>2180","sw=>2180","lua=>2180","da=>2208","en=>2208","fo=>2208","es=>2208","ar=>2262","en=>2262","fr=>2262","so=>2262","en=>2212","en=>2214","es=>2214","en=>2218","es=>2218","ar=>2818","en=>2818","en=>2222","es=>2222","en=>2226","ar=>2232","en=>2232","en=>2233","et=>2233","ru=>2233","en=>2748","am=>2231","en=>2231","om=>2231","so=>2231","ti=>2231","en=>2583","en=>2242","en=>2246","fi=>2246","es=>2246","sv=>2246","en=>2250","fr=>2250","es=>2250","en=>2258","fr=>2258","en=>2266","fr=>2266","en=>2268","ka=>2268","en=>2276","de=>2276","es=>2276","ak=>2288","en=>2288","ee=>2288","gaa=>2288","ha=>2288","en=>2300","el=>2300","en=>2308","en=>2316","en=>2320","es=>2320","en=>2831","fr=>2831","en=>2324","fr=>2324","en=>2624","en=>2328","en=>2332","fr=>2332","ht=>2332","en=>2340","es=>2340","zh=>2344","zh_cn=>2344","zh_tw=>2344","zh_hk=>2344","en=>2344","en=>2348","hu=>2348","en=>2352","is=>2352","bn=>2356","en=>2356","gu=>2356","hi=>2356","kn=>2356","ml=>2356","mr=>2356","pa=>2356","ta=>2356","te=>2356","ban=>2360","jw=>2360","en=>2360","id=>2360","ar=>2368","en=>2368","ckb=>2368","en=>2372","ar=>2376","en=>2376","he=>2376","en=>2380","it=>2380","es=>2380","en=>2388","en=>2392","en=>2832","fr=>2832","ar=>2400","en=>2400","en=>2398","kk=>2398","ru=>2398","en=>2404","sw=>2404","en=>2296","ar=>2414","en=>2414","en=>2417","ky=>2417","ru=>2417","en=>2418","lo=>2418","en=>2428","lv=>2428","lt=>2428","ru=>2428","ar=>2422","hy=>2422","en=>2422","fr=>2422","en=>2426","st=>2426","en=>2430","ar=>2434","en=>2434","it=>2434","en=>2438","de=>2438","en=>2440","lt=>2440","en=>2442","fr=>2442","de=>2442","en=>2450","fr=>2450","mg=>2450","ny=>2454","en=>2454","tum=>2454","en=>2458","ms=>2458","en=>2462","en=>2466","fr=>2466","en=>2470","mt=>2470","en=>2584","ar=>2478","en=>2478","en=>2480","fr=>2480","mfe=>2480","en=>2484","es=>2484","mo=>2498","ro=>2498","ru=>2498","en=>2492","en=>2496","mn=>2496","bs=>2499","en=>2499","sr=>2499","ar=>2504","en=>2504","fr=>2504","ny=>2508","en=>2508","pt=>2508","sn=>2508","sw=>2508","my=>2104","en=>2104","af=>2516","en=>2516","de=>2516","en=>2520","en=>2524","ne=>2524","nl=>2528","fy=>2528","es=>2528","en=>2540","fr=>2540","en=>2554","mi=>2554","en=>2558","es=>2558","en=>2562","fr=>2562","ha=>2562","en=>2566","ha=>2566","ig=>2566","pcm=>2566","yo=>2566","en=>2570","en=>2574","en=>2807","mk=>2807","en=>2580","nb=>2578","ar=>2512","en=>2512","en=>2586","ps=>2586","sd=>2586","ur=>2586","en=>2585","ar=>2275","en=>2275","en=>2598","en=>2600","gn=>2600","es=>2600","en=>2604","qu=>2604","es=>2604","ceb=>2608","en=>2608","fil=>2608","tl=>2608","en=>2612","en=>2616","pl=>2616","en=>2620","pt=>2620","en=>2630","es=>2630","ar=>2634","en=>2634","fr=>2178","kg=>2178","in=>2178","en=>2642","de=>2642","hu=>2642","ro=>2642","en=>2643","ru=>2643","en=>2646","fr=>2646","rw=>2646","sw=>2646","en=>2654","en=>2659","en=>2662","en=>2666","en=>2670","en=>2882","en=>2674","it=>2674","pt=>2678","ar=>2682","en=>2682","en=>2686","fr=>2686","wo=>2686","en=>2688","sr=>2688","en=>2690","fr=>2690","crs=>2690","en=>2694","kri=>2694","zh=>2702","zh_cn=>2702","zh_tw=>2702","zh_sg=>2702","en=>2702","ms=>2702","ta=>2702","en=>2534","en=>2703","sk=>2703","en=>2705","sl=>2705","en=>2090","ar=>2706","en=>2706","so=>2706","af=>2710","en=>2710","nso=>2710","st=>2710","tn=>2710","xh=>2710","zu=>2710","en=>2410","ko=>2410","eu=>2724","ca=>2724","en=>2724","gl=>2724","es=>2724","en=>2144","si=>2144","ta=>2144","fr=>2740","en=>2752","es=>2752","sv=>2752","en=>2756","fr=>2756","de=>2756","it=>2756","rm=>2756","zh=>2158","zh_cn=>2158","zh_tw=>2158","en=>2158","en=>2762","ru=>2762","tg=>2762","en=>2834","sw=>2834","en=>2764","th=>2764","en=>2044","en=>2270","wo=>2270","pt=>2626","en=>2768","ee=>2768","fr=>2768","en=>2772","en=>2776","to=>2776","zh_tw=>2780","en=>2780","es=>2780","fr=>2780","hi=>2780","ar=>2788","en=>2788","fr=>2788","en=>2792","tr=>2792","en=>2795","ru=>2795","tk=>2795","uz=>2795","en=>2800","lg=>2800","rw=>2800","ach=>2800","nyn=>2800","nym=>2800","sw=>2800","en=>2804","ru=>2804","uk=>2804","ar=>2784","en=>2784","hi=>2784","fa=>2784","ur=>2784","fr=>2826","it=>2826","pt=>2826","ru=>2826","es=>2826","zh_cn=>2840","zh_tw=>2840","da=>2840","nl=>2840","fr=>2840","de=>2840","ko=>2840","pt=>2840","ru=>2840","es=>2840","sv=>2840","vi=>2840","en=>2858","es=>2858","en=>2860","ru=>2860","uz=>2860","en=>2548","fr=>2548","en=>2336","en=>2862","es=>2862","zh_tw=>2704","en=>2704","fr=>2704","vi=>2704","en=>2876","ar=>2887","en=>2887","ny=>2894","tum=>2894","en=>2894","bem=>2894","loz=>2894","ny=>2716","en=>2716","sn=>2716","tn=>2716","zu=>2716"]]);

curl_setopt($ch, CURLOPT_POSTFIELDS, $headers);

Я Вам выше писал: нет таких заголовков, нехрен пихать json в заголовки, это ДАННЫЕ! Но Вы как-будто не читаете :(

Вот Ваш код:

<?php

$post = '{"domain":"smartvest.com","lang_locs":["en:2840","en:2826","ja:2392","en:2036","en:2124","ar:2004","en:2004","ps:2004","fa:2004","sq:2008","en:2008","ar:2012","en:2012","fr:2012","en:2016","ca:2020","en:2020","en:2024","kg:2024","pt:2024","en:2028","en:2032","es:2032","hy:2051","en:2051","ru:2051","es:2036","en:2040","de:2040","es:2040","az:2031","en:2031","ru:2031","ar:2048","en:2048","bn:2050","en:2050","en:2052","be:2112","en:2112","ru:2112","nl:2056","en:2056","fr:2056","de:2056","es:2056","en:2084","es:2084","en:2204","fr:2204","yo:2204","en:2064","en:2068","qu:2068","es:2068","bs:2070","hr:2070","en:2070","sr:2070","en:2072","tn:2072","pt:2076","zh_cn:2096","en:2096","ms:2096","bg:2100","en:2100","en:2854","fr:2854","en:2108","fr:2108","rn:2108","sw:2108","en:2116","km:2116","en:2120","fr:2120","fr:2124","es:2124","en:2132","pt:2132","en:2535","en:2140","fr:2140","ar:2148","en:2148","fr:2148","en:2152","es:2152","en:2170","es:2170","fr:2174","en:2184","en:2188","es:2188","en:2384","fr:2384","hr:2191","en:2191","en:2531","en:2196","el:2196","tr:2196","cs:2203","en:2203","ach:2180","fr:2180","kg:2180","in:2180","sw:2180","lua:2180","da:2208","en:2208","fo:2208","es:2208","ar:2262","en:2262","fr:2262","so:2262","en:2212","en:2214","es:2214","en:2218","es:2218","ar:2818","en:2818","en:2222","es:2222","en:2226","ar:2232","en:2232","en:2233","et:2233","ru:2233","en:2748","am:2231","en:2231","om:2231","so:2231","ti:2231","en:2583","en:2242","en:2246","fi:2246","es:2246","sv:2246","en:2250","fr:2250","es:2250","en:2258","fr:2258","en:2266","fr:2266","en:2268","ka:2268","en:2276","de:2276","es:2276","ak:2288","en:2288","ee:2288","gaa:2288","ha:2288","en:2300","el:2300","en:2308","en:2316","en:2320","es:2320","en:2831","fr:2831","en:2324","fr:2324","en:2624","en:2328","en:2332","fr:2332","ht:2332","en:2340","es:2340","zh:2344","zh_cn:2344","zh_tw:2344","zh_hk:2344","en:2344","en:2348","hu:2348","en:2352","is:2352","bn:2356","en:2356","gu:2356","hi:2356","kn:2356","ml:2356","mr:2356","pa:2356","ta:2356","te:2356","ban:2360","jw:2360","en:2360","id:2360","ar:2368","en:2368","ckb:2368","en:2372","ar:2376","en:2376","he:2376","en:2380","it:2380","es:2380","en:2388","en:2392","en:2832","fr:2832","ar:2400","en:2400","en:2398","kk:2398","ru:2398","en:2404","sw:2404","en:2296","ar:2414","en:2414","en:2417","ky:2417","ru:2417","en:2418","lo:2418","en:2428","lv:2428","lt:2428","ru:2428","ar:2422","hy:2422","en:2422","fr:2422","en:2426","st:2426","en:2430","ar:2434","en:2434","it:2434","en:2438","de:2438","en:2440","lt:2440","en:2442","fr:2442","de:2442","en:2450","fr:2450","mg:2450","ny:2454","en:2454","tum:2454","en:2458","ms:2458","en:2462","en:2466","fr:2466","en:2470","mt:2470","en:2584","ar:2478","en:2478","en:2480","fr:2480","mfe:2480","en:2484","es:2484","mo:2498","ro:2498","ru:2498","en:2492","en:2496","mn:2496","bs:2499","en:2499","sr:2499","ar:2504","en:2504","fr:2504","ny:2508","en:2508","pt:2508","sn:2508","sw:2508","my:2104","en:2104","af:2516","en:2516","de:2516","en:2520","en:2524","ne:2524","nl:2528","fy:2528","es:2528","en:2540","fr:2540","en:2554","mi:2554","en:2558","es:2558","en:2562","fr:2562","ha:2562","en:2566","ha:2566","ig:2566","pcm:2566","yo:2566","en:2570","en:2574","en:2807","mk:2807","en:2580","nb:2578","ar:2512","en:2512","en:2586","ps:2586","sd:2586","ur:2586","en:2585","ar:2275","en:2275","en:2598","en:2600","gn:2600","es:2600","en:2604","qu:2604","es:2604","ceb:2608","en:2608","fil:2608","tl:2608","en:2612","en:2616","pl:2616","en:2620","pt:2620","en:2630","es:2630","ar:2634","en:2634","fr:2178","kg:2178","in:2178","en:2642","de:2642","hu:2642","ro:2642","en:2643","ru:2643","en:2646","fr:2646","rw:2646","sw:2646","en:2654","en:2659","en:2662","en:2666","en:2670","en:2882","en:2674","it:2674","pt:2678","ar:2682","en:2682","en:2686","fr:2686","wo:2686","en:2688","sr:2688","en:2690","fr:2690","crs:2690","en:2694","kri:2694","zh:2702","zh_cn:2702","zh_tw:2702","zh_sg:2702","en:2702","ms:2702","ta:2702","en:2534","en:2703","sk:2703","en:2705","sl:2705","en:2090","ar:2706","en:2706","so:2706","af:2710","en:2710","nso:2710","st:2710","tn:2710","xh:2710","zu:2710","en:2410","ko:2410","eu:2724","ca:2724","en:2724","gl:2724","es:2724","en:2144","si:2144","ta:2144","fr:2740","en:2752","es:2752","sv:2752","en:2756","fr:2756","de:2756","it:2756","rm:2756","zh:2158","zh_cn:2158","zh_tw:2158","en:2158","en:2762","ru:2762","tg:2762","en:2834","sw:2834","en:2764","th:2764","en:2044","en:2270","wo:2270","pt:2626","en:2768","ee:2768","fr:2768","en:2772","en:2776","to:2776","zh_tw:2780","en:2780","es:2780","fr:2780","hi:2780","ar:2788","en:2788","fr:2788","en:2792","tr:2792","en:2795","ru:2795","tk:2795","uz:2795","en:2800","lg:2800","rw:2800","ach:2800","nyn:2800","nym:2800","sw:2800","en:2804","ru:2804","uk:2804","ar:2784","en:2784","hi:2784","fa:2784","ur:2784","fr:2826","it:2826","pt:2826","ru:2826","es:2826","zh_cn:2840","zh_tw:2840","da:2840","nl:2840","fr:2840","de:2840","ko:2840","pt:2840","ru:2840","es:2840","sv:2840","vi:2840","en:2858","es:2858","en:2860","ru:2860","uz:2860","en:2548","fr:2548","en:2336","en:2862","es:2862","zh_tw:2704","en:2704","fr:2704","vi:2704","en:2876","ar:2887","en:2887","ny:2894","tum:2894","en:2894","bem:2894","loz:2894","ny:2716","en:2716","sn:2716","tn:2716","zu:2716"]}';

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, 'https://app.neilpatel.com/api/domain_top_countries');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1); 
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0); 

$headers = array();
$headers[] = 'Accept: application/json, text/plain, */*';
$headers[] = 'Authorization: Bearer app#unlogged__883a91536ffd1bd5c946a6309f66d6788e6db8f8';
$headers[] = 'User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.164 YaBrowser/21.6.4.786 Yowser/2.5 Safari/537.36';
$headers[] = 'Content-Type: application/json;charset=UTF-8';
$headers[] = 'Origin: https://app.neilpatel.com';
$headers[] = 'Sec-Fetch-Site: same-origin';
$headers[] = 'Sec-Fetch-Mode: cors';
$headers[] = 'Sec-Fetch-Dest: empty';
$headers[] = 'Referer: https://app.neilpatel.com/en/traffic_analyzer/overview?domain=smartvest.com&amp;amp;locId=2643&lang=ru';
$headers[] = 'Accept-Language: ru,en;q=0.9';
$headers[] = 'Cookie: _vwo_uuid_v2=D5A278168CABCC93C5145066AE261DBED|5666ddd2275d99f5073f8ce655917132; km_ai=UkK71Ym451v9jcJPO0ArO7hoNMU%3D; km_vs=1; _hjid=e8a3ee83-565e-427e-82bb-b8f35ea91f33; _hjFirstSeen=1; _ga=GA1.2.562800073.1630509268; _gid=GA1.2.36096469.1630509268; _vis_opt_s=1%7C; _vis_opt_test_cookie=1; _vwo_uuid=D5A278168CABCC93C5145066AE261DBED; _vwo_ds=3%241630509266%3A9.85814881%3A%3A; __zlcmid=15rkIbNxoYwtqlZ; amp_276990=64ifod5c40mEkwUZ2BrZKU...1fegupu23.1fegveiok.0.0.0; kvcd=1630509944017; km_lv=1630509944; _gat_UA-16137731-1=1; _gat_gtag_UA_16137731_1=1; _vwo_sn=0%3A5';

curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

curl_setopt($ch, CURLOPT_POSTFIELDS, $post);

$result = curl_exec($ch);
if (curl_errno($ch)) {
    echo 'Error:' . curl_error($ch);
}
curl_close($ch);

var_dump($result);

И токен авторизации Ваш уже устарел, я на новый поменял.