Duplantier signed a minor-league contract with the Mets on Thursday, Anthony DiComo of MLB.com reports.
Duplantier hasn't pitched in the majors since 2021, and he owns a 5.05 ERA across 103.1 innings in the minors over the past two seasons. He'll likely report to Triple-A Syracuse to begin 2024 and give the Mets organizational rotation depth.