  HelMod is a Monte Carlo code developed to describe the transport of Galactic
Cosmic Rays (GCRs) through the heliosphere from the interstellar space to the
Earth. In the current HelMod version 4 the modulation process, based on
Parker's equation, is applied to the propagation of GCRs in the inner and outer
heliosphere, i.e., including the heliosheath. HelMod was proved to reproduce
protons, nuclei and electrons cosmic rays spectra observed during solar cycles
23-24 by several detectors, for instance, PAMELA, BESS and AMS-02. In
particular, the unprecedented accuracy of AMS-02 observations allowed one a
better tuning of the description regarding the solar modulation mechanisms
implemented in HelMod. In addition, HelMod demonstrated to be capable of
reproducing the uxes observed by the Voyager probes in the inner and outer
regions of heliosphere up to its border.
