Is depakote an maoi inhibitor?

No. According to Up to Date: "The MAOIs that are most commonly used as antidepressants include isocarboxazid, moclobemide (not available in the United States), phenelzine, transdermal selegiline, & tranylcypromine." Use this drug-interaction checker before taking any new medication (prescription or over the counter) or supplement: https://www.drugs.com/drug_interactions.html

No, Depakote is an ‘antiepileptic drug’ used for managing some seizure disorders, treating manic episodes associated with bipolar disorder, or preventing migraines. MAO inhibitors are a class of medication used to treat conditions that include depression and Parkinson’s disease.