  Indirect searches, and in particular rare decays, have proven to be a
fruitful field to search for New Physics beyond the Standard Model. While the
down-quark sector (B and K) have been studied in detail, less attention was
devoted to charm decays due to the smaller expected values and higher
theoretical uncertainties of their observables. Recently a renewed interest is
growing in rare charm searches. In this article we review the current
experimental status of searches for rare decays in charmed hadrons. While the
Standard Model rates are yet to be reached, current experimental limits are
already putting constraints on New Physics models.
