User ID and User Key pair API authentication

<?xml version="1.0"?>
<query>
    <userid><<id>></userid> <!-- required-->
    <userkey><<key>></userkey> <!-- required-->
    <action>[Action]</action>
    <!-- query params -->
</query>

{
    "query": {
        "userid": "<<id>>", // required
        "userkey": "<<key>>", // required
        "action": "[Action]" // required
        // query params
    }
}

UserID
A unique user identifier. This number can be found in the My Account tab of the Client Interface.

UserKey
A user’s unique authentication key string. Created automatically when a user is created and can be regenerated at anytime in the My Account tab of the User Interface.

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Note

Please note that regenerating the UserKey will invalidate the previous, and API requests using the old UserKey will error out.