  We propose a platform to realize nodal topological superconductors in a
superconducting monolayer of MoX$_2$ (X$=$S, Se, Te) using an in-plane magnetic
field. The bulk nodal points appear where the spin splitting due to spin-orbit
coupling vanishes near the $\pm \boldsymbol{K}$ valleys of the Brillouin zone,
and are six or twelve per valley in total. In the nodal topological
superconducting phase, the nodal points are connected by flat bands of
zero-energy Andreev edge states. These flat bands, which are protected by
chiral symmetry, are present for all lattice-termination boundaries except
zigzag.
