The first example of the [Nb(CN)8]-based pillared-layered-type framework system {[MnII2(bpdo)(H2O)4][NbIV(CN)8]·6H2O}n (bpdo = 4,4′-bipyridyl-N,N′-dioxide) has been obtained and characterized structurally and magnetically. The presented results provide the first evidence for substantial magnetic anisotropy of [NbIV(CN)8].