In the crystal structure of the title compound, [Ag(C(7)H(3)N(2)O(2)S)](n), the Ag(I) atom is coordinated by two N atoms and three O atoms of four organic ligands forming a distorted square pyramid. The carboxyl-ate group acts as a bidentate ligand on one Ag(I) atom and as a bridging group for a symmetry-related Ag(I) atom, forming a dimer. Futhermore, the two N atoms of two thia-diazole rings bridge a third symmetry-related Ag(I) atom, forming a six-membered ring. These two frameworks, AgO(2)Ag and AgN(4)Ag, extend in three directions, forming a three-dimensionnal polymer. The whole polymer is organized around inversion centers.