GPCROP is a model simulating the limitation of maize potential yield by phosphorus (P) at the global scale. GPCROP is built from the coupling between 3 models: GPASOIL (soil P dynamic), SIM (potential yield) and GPCROP istelf (dealing with the interaction between GPASOIL, SIM and some others processes: P uptake, carbon/P allocation within the plants, P remobolization). Each component has its own README file. How to launch GPCROP simulations is explained in GPCROP/README.txt GPASOIL input/output files required as input of GPCROP can be found in https://doi.org/10.57745/XZTW7Z Other input are here provided. GPCROP can be used either a site scale or at the global scale. Output files for one site (called Tartas in the associated publication) and at the global scale are here provided in GPCROP/outputGPCROP/ These output are at the basis of the associated publication. Both the model and scripts used to analyze the output are here provided and correspond to the release v1.0_GCB_2025 of the project GPCROP in https://forge.inrae.fr/umr-ispa/GPCROPcoupled The corresponding release can be found at https://forge.inrae.fr/umr-ispa/GPCROPcoupled/-/releases/v1.0_GCB_2025