Hi Maria. It's probably a bit too late for your needs, but it is possible to get this from the AL_LANG table. The following script works in data services 3.2 repositories. We're upgrading soon so I'll try to remember to confirm if it works in later versions.
select distinct name, guid
from AL_LANG
where type=0
and object_type=0;
Note: The distinct is in there because AL_LANG keeps a version history.
Edit: This will return a couple of default jobs used by data services. di_job_al_mach_info and CD_JOB_d0cafae2. You can exclude these in the predicate of your SQL query.