This research aims to investigate the significance of Brownian motion and thermophoresis dispersion on the magnetohydrodynamic (MHD) Casson nanofluid flow over a non-linear slanted permeable stretching surface, considering the influence of convective boundaries and thermal radiation with a synthetic response. Nonlinear ordinary differential equations (ODEs) are derived from managing the nonlinear partial differential equations (PDEs) through suitable similarity transformations. Various quantities related to flow characteristics, such as skin friction, Nusselt number, and Sherwood number, as well as other factors affecting velocity and temperature profiles, are analysed.