  A monopole harmonic superconductor is a novel topological phase of matter
with topologically protected gap nodes that result from the non-trivial Berry
phase structure of Cooper pairs. In this work we propose to realize a monopole
superconductor by the proximity effect between a time-reversal broken Weyl
semi-metal and an $s$-wave superconductor. Furthermore, we study the
zero-energy vortex bound states in this system by projection methods and by
exact solutions. The zero modes exhibit a non-trivial phase winding in real
space as a result of the non-trivial winding of the order parameter in momentum
space. By mapping the Hamiltonian to the $(1+1)$d Dirac Hamiltonian, it is
shown that the zero modes, analogous to the Jackiw-Rebbi mode, are protected by
the index theorem. Finally, we propose possible experimental realizations.
