Munchkin return object

[Anonymous]

It seems that there isn't an object that is returned or something to work off of with the Munchkin API.  Is this by design?  

I have no way of knowing whether a custom field associated by an email address has been populated or not.  Ideally, I'd like to populate this custom field if it is empty and I certainly don't want to override/update the custom field if it is already set.

Thoughts...?

Thanks!

[Anonymous]

The Munchkin API is used to send data into Marketo. You can use the SOAP or REST APIs to query based on Munchkin ID to handle this type of logic.