Error Responses
===============

The API emits standard HTTP error status codes and XML responses. The XML always takes the form of ``/error/message`` where ``message`` indicates the cause. E.g.:

.. sourcecode:: http

    HTTP/1.1 400 Bad Request
    Content-Type: application/xml

    <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
    <error>
        <message>INVALID_API_KEY</message>
    </error>