[
    {
        "service": 1,
        "name": "Followers",
        "type": "Default",
        "category": "First Category",
        "rate": "0.90",
        "min": "50",
        "max": "10000",
        "refill": true,
        "cancel": true
    },
    {
        "service": 2,
        "name": "Comments",
        "type": "Custom Comments",
        "category": "Second Category",
        "rate": "8",
        "min": "10",
        "max": "1500",
        "refill": false,
        "cancel": true
    }
]

{
    "order": 23501
}

{
    "charge": "0.27819",
    "start_count": "3572",
    "status": "Partial",
    "remains": "157",
    "currency": "USD"
}

{
    "1": {
        "charge": "0.27819",
        "start_count": "3572",
        "status": "Partial",
        "remains": "157",
        "currency": "USD"
    },
    "10": {
        "error": "Incorrect order ID"
    },
    "100": {
        "charge": "1.44219",
        "start_count": "234",
        "status": "In progress",
        "remains": "10",
        "currency": "USD"
    }
}

{
    "refill": "1"
}

[
    {
        "order": 1,
        "refill": 1
    },
    {
        "order": 2,
        "refill": 2
    },
    {
        "order": 3,
        "refill": {
            "error": "Incorrect order ID"
        }
    }
]

{
    "status": "Completed"
}

[
    {
        "refill": 1,
        "status": "Completed"
    },
    {
        "refill": 2,
        "status": "Rejected"
    },
    {
        "refill": 3,
        "status": {
            "error": "Refill not found"
        }
    }
]

[
    {
        "order": 9,
        "cancel": {
            "error": "Incorrect order ID"
        }
    },
    {
        "order": 2,
        "cancel": 1
    }
]

{
    "balance": "100.84",
    "currency": "USD"
}

Example of PHP code

<?php
class Api
{
    public $api_url = 'https://www.buy.360social.org/api/v2';
    public $api_key = '';

    public function order($data) {
        $post = array_merge(['key' => $this->api_key, 'action' => 'add'], $data);
        return json_decode((string)$this->connect($post));
    }
    public function status($order_id) {
        return json_decode($this->connect(['key' => $this->api_key, 'action' => 'status', 'order' => $order_id]));
    }
    public function services() {
        return json_decode($this->connect(['key' => $this->api_key, 'action' => 'services']));
    }
    public function balance() {
        return json_decode($this->connect(['key' => $this->api_key, 'action' => 'balance']));
    }
    private function connect($post) {
        $_post = [];
        if (is_array($post)) { foreach ($post as $name => $value) { $_post[] = $name . '=' . urlencode($value); } }
        $ch = curl_init($this->api_url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
        if (is_array($post)) { curl_setopt($ch, CURLOPT_POSTFIELDS, join('&', $_post)); }
        curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)');
        $result = curl_exec($ch);
        if (curl_errno($ch) != 0 && empty($result)) { $result = false; }
        curl_close($ch);
        return $result;
    }
}
?>