An apparatus for multi-stage fracking, wherein the apparatus includes a pump configured to pump a fracking fluid into a rock region comprises a plurality of rock zones, and a computing device communicatively connected to the pump, wherein the computing device includes at least a processor, and a memory communicatively connected to the at least a processor containing instructions configuring the at least a processor to receive reservoir data, determine an optimal fracking stimulation parameter as a function of the reservoir data, identify a fracking stage as a function of the optimal fracking stimulation parameter, and adjust a pump configuration of the pump as a function of the fracking stage.