First you need to generate API key from your buyer portal and copy the API key.

Sample Code to Download tariff (the tariff download that is output in CSV):

P.S: This is a PHP Curl example to download the rates for a specific seller, if you're using a different programming language e.g NodeJS, Python, Java please refer to your programming language CURL tutorials to use the 

Before you start:

You will need to know the  i_tariff value for the seller rates you need to download via API,  it may be discovered through Market View API call i_tariff parameter of the rates entry, here is an example:


# php marketview_lookup.php


    "status": "success",

    "rates": [


            "prefix": "380",

            "vendor_name": "testseller",

            "connection_name": "testnew_route1",

            "i_tariff": "181",    // This i_tariff id needs to be passed in the Carrier Rates Download API.




// my login in TCXC
$api_login ="Enter Buyer Username";

//my API key
$api_key = 'PASTE API KEY HERE';

// initialising CURL
$ch = curl_init();

//controller is a script name, so in case lookup.php controller is lookup
$controller = "accounts";

//unix timestamp to ensure that signature will be valid temporary
$ts = time();

//compose signature concatenating controller api_key api_login and unix timestamp
$signature = hash( 'sha256', $controller .  $api_key   . $api_login  . $ts);

$params = array(
                'ts' => $ts,  //provide TS
                'signature' => $signature,
                'api_login' => $api_login,
                'webapi'    => 1,  // required settings, do not change.
                'download'  => 584 // Use the i_tariff value for the seller rate you'd like to download

//query against api. URL
curl_setopt($ch, CURLOPT_URL,"$controller.php");
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS,
//curl_setopt($ch, CURLOPT_VERBOSE, true);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$server_output = curl_exec ($ch);
curl_close ($ch);

//analyze JSON output
echo "server_output:$server_output";