Antiperovskite carbides have a long history in metallurgical research, and members of the family exhibit unusual properties such as superconductivity and giant magnetoresistance. They are cubic structures with the formula X₃AC_δ, in which the X site hosts the element with the lowest electronegativity. Recent computational work suggests that both Mn₃ZnC and Ni₃GeC might be topological semimetals—3D analogs of graphene with interesting electronic properties. Conventional synthesis of antiperovskite carbides can be a complicated task: Mn₃ZnC is conventionally produced through several heating and mixing cycles over multiple weeks and Ni₃GeC_δ has never been successfully produced with carbon filling, δ, close to 1. Microwave-assisted synthesis addresses both issues by reducing synthesis time and locally heating the carbon, which is a strong microwave susceptor, and also offers a pathway towards isolating metastable antiperovskite carbide family members due to the fast reaction time. In this work, we synthesize the antiperovskite carbides Mn₃ZnC and Ni₃GeC via microwave-assisted synthesis. Mixed precursors are vacuum sealed in fused silica tubes and then heated up in a conventional microwave for several minutes. X-ray diffraction is used to characterize the reaction product. Preliminary results suggest that microwave-assisted synthesis performance is comparable to conventional synthesis.