Java integration
curl \ -H "Authorization: $API_KEY" \ http://metering.marketplace.us-east-1.amazonaws.com/#X-Amz-Target=AWSMPMeteringService.MeterUsage
curl \ -H "Authorization: $API_KEY" \ http://metering.marketplace.us-east-1.amazonaws.com/#X-Amz-Target=AWSMPMeteringService.RegisterUsage