In order to integrate with SAFE you need to take a license to access the SAFE model. More information about how to integrate you can find here
The integration allows sending Pilots data from Leon to SAFE in one easy click. Once the data is uploaded to SAFE it undergoes an immediate fatigue and alertness evaluation.
You can also generate the csv file. Generated file can be used and uploaded in SAFE (Systems for Aircrew Fatigue Evaluation).