We have a ClientID and when we try to use the REST API to http://api.mixrad.io/1.x/us/?categor...t_id=CLIENT_ID from a web-browser, we're able to obtain a JSON of songs for the country.

However, the same request through a programmatic CURL call results in the following error :
{"statuscode":401,"type":"error","message":"API token missing or invalid"}

What does the request specifically have to pass in its' headers ?