MEtop is a MC event generator of single top quark production via Flavor Changing Neutral Currents interactions. The MEtop event generator allows Next-to-Leading-Order direct top production pp -> t and Leading-Order production of several other single top processes. A few packages with definite sets of dimension six operators are available: Strong, Strong+Electroweak and Strong+4F. The first one is light version of MEtop, where only one effective operator was introduced (responsible for strong FCNC). The second version includes one for strong FCNC and six electroweak FCNC, and finally, the third is equivalent but with a set of strong and nine 4-fermions operators.