$token = 'eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImp0aSI6IjI1OGJhNmQ2NjYyMmRhYzk0NTIyMDYyM2FmYjBmZmQwZmIyZDk4YWQ5NGMxZTA0Mzc0NGQwNjA4ZjRhYjAyMTIxOWMxZWEzYTA0Nzk2MjZhIn0.eyJhdWQiOiI3MDM2ZGQ5ZS02YjZhLTQxNGQtYTdlOS03ZWRkN2E0MTY5MmUiLCJqdGkiOiIyNThiYTZkNjY2MjJkYWM5NDUyMjA2MjNhZmIwZmZkMGZiMmQ5OGFkOTRjMWUwNDM3NDRkMDYwOGY0YWIwMjEyMTljMWVhM2EwNDc5NjI2YSIsImlhdCI6MTU4NDY5MjYxNCwibmJmIjoxNTg0NjkyNjE0LCJleHAiOjE1ODQ3NzkwMTMsInN1YiI6IjU5MjAxMTEiLCJhY2NvdW50X2lkIjoyODgzNzg0MCwic2NvcGVzIjpbInB1c2hfbm90aWZpY2F0aW9ucyIsImNybSIsIm5vdGlmaWNhdGlvbnMiXX0.PYJCan3tsYgv6-1rbdIpJgheXwAXRsEbkL6q7--6ZlrTogUH1uuxO5ufblViuLKnPkgZkKHbTdcUQoP9cOETeGVn7B9cgNL5yeHs2x5mznEzOa5_y2YT9dii8Kiy2NqC0G7jtasU9z4dJGIw8l3ODBWiK-PwrRL9PapTASnv_4mihcDvtaQB98N5K3BUd0ET7dlkHVEBT3_xvZi-iHKAWs3DZqrl_b3eATx29cZezIokNpy5R2Q3t-gndbxtTk9D-pQL5VU8939HtLAQXQ5xnnf3SyPSQZ5EXw9aKoqjSlXJareq-IRmvlQE4gaqPxyUwc1StN0oIRjhB5c-nNTUFA';
            $contacts['add'] = [
                [
                    'name' => 'Andrew Danilchenko',
                    'first_name' => 'Andrew',
                    'last_name' => 'Danilchenko',
                    'email' => 'danilchenko.andrew@gmail.com',
                    'phone' => '+380938373747',
                    'created_at' => time(),
                    'updated_at' => time(),
                    'custom_fields' => [
                        [
                            'id' => 256029,
                            'values' => [
                                ['value' => 1],
                            ],
                        ],
                    ],
                ],
            ];

            $link = 'https://skillsetter.amocrm.ru/api/v3/contacts';
            $headers = [
                'Authorization: Bearer ' . $token,
                'Content-Type: application/json',
            ];
            $curl = curl_init();
            curl_setopt($curl,CURLOPT_RETURNTRANSFER, true);
            curl_setopt($curl,CURLOPT_USERAGENT,'amoCRM-oAuth-client/1.0');
            curl_setopt($curl,CURLOPT_URL, $link);
            curl_setopt($curl, CURLOPT_CUSTOMREQUEST, 'POST');
            curl_setopt($curl, CURLOPT_POSTFIELDS, json_encode($contacts));
            curl_setopt($curl,CURLOPT_HTTPHEADER, $headers);
            curl_setopt($curl,CURLOPT_HEADER, false);
            curl_setopt($curl,CURLOPT_SSL_VERIFYPEER, 1);
            curl_setopt($curl,CURLOPT_SSL_VERIFYHOST, 2);
            $out = curl_exec($curl);
            $code = curl_getinfo($curl, CURLINFO_HTTP_CODE);
            curl_close($curl);
var_dump($out, $code); die; // string(0) "" int(405)