The aim of this paper is to investigate the existence of anti-periodic solutions for a nonlinear coupled system of [Formula omitted]Caputo fractional differential equations with [Formula omitted]Laplacian operator in a Banach space. The proofs of our main results are based on Mönch's fixed point theorem and some basic tools of [Formula omitted]Caputo fractional calculus paired with measures of noncompactness. As an application, our theoretical results have been illustrated by providing an interesting example., Author(s): Ali El Mfadel [sup.1] [sup.2], Said Melliani [sup.2], M'hamed Elomari [sup.2] Author Affiliations: (1) https://ror.org/02m8tb249, grid.460100.3, 0000 0004 0451 2935, Superior School of Technology, Sultan Moulay Slimane University, , [...]