  In this paper we present the calculation of the three-point function in
momentum space of currents for a $SO(3)$ global symmetry, in a
three-dimensional toy model within phenomenological holographic cosmology.
Since the two-point function gives, via electric-magnetic duality, the
resolution of the cosmological monopole problem, the three-point function is
related to the monopole non-Gaussianities. We check that the final result is UV
and IR finite and satisfies the transverse Ward identities and consider the
$k_1\ll k_2,k_3$ case, relevant for cosmology. We also show that the two-loop
result for the 3-point function is completely independent of the explicit form
of the potential, meaning that, like the solution to the monopole problem, also
the non-Gaussianities are universal within the phenomenological holographic
cosmology.
