The invention relates to a robotic manipulator interface for coupling a hinged surgical tool (21) to a manipulator (80) of a surgical robot, the interface comprising a first interface member (11) to be coupled to the manipulator (80), and a second interface member (12) to be coupled to the first interface member (11), the second interface member (12) being arranged to mount the hinged surgical tool, wherein the first interface member (11) comprises a pinching mechanism (29) for pinching the hinged surgical tool (21) when the second interface member is coupled to the first interface member.