  We construct an unfolded description of conserved higher-spin currents in 4d
anti-de Sitter space. By coupling them to the free massless higher-spin fields
we formulate an off-shell unfolded system for these fields. We find on-shell
reductions of this system that describe relativistic fields of arbitrary spin
and mass. We quantize off-shell theories by reinterpreting unfolded equations
as Schwinger-Dyson equations and evaluate AdS two-point functions of
higher-spin fields.
