Not in a "show running-config" text file kind of way. You can however export the config the configuration using the REST API. The exported attributes and configurations won't be terribly easy for you to understand however they can be modified and "imported" back into the same or different FMC.
Here is an API tool written by one of our SE's, check it out:
https://rhindere.github.io/cmaple/
-jeff
