A combined multi-coupler, comprising: a first tubular member having a first load shoulder, and a first junction member, wherein the first tubular member is a tool dock for connecting to one of a drilling tool, a cementing tool, a casing tool, a completion tool, a wireline tool, a fracturing tool, a pump, and a sand screen; a second tubular member having an outer surface, a second junction member, a first groove formed around the outer surface, and a second load shoulder, wherein the second tubular member is a drive stem configured to be connected to a top drive; a sleeve member disposed around the second tubular member; a plurality of locking clamps distributed around the second tubular member and pivotally coupled to the second tubular member and configured to pivot in the first groove from an open position to a closed position, wherein the plurality of locking clamps are at least partially disposed between the second tubular member and the sleeve member, wherein each locking clamp includes: an upper end of each locking clamp disposed within the first groove, a profile of the upper end of each locking clamp and the first groove being shaped to allow the locking clamps to pivot in the first groove relative to the second tubular member, wherein the upper end includes a third load shoulder; a lower end of each locking clamp includes a fourth load shoulder; and wherein the fourth load shoulder of each locking clamp clamps on the first load shoulder and the third load shoulder of each locking clamp clamps on the second load shoulder when each of the locking clamps is in the closed position, the second load shoulder being in the first groove; the sleeve member is configured to move in a vertical direction from a first position to a second position to move the plurality of locking clamps from the open position to the closed position, respectively, wherein the plurality of locking clamps open and close when a contact surface near the upper end of each locking clamp interacts with an inner groove of the sleeve member; and wherein engagement of the first tubular member to the second tubular member forms a connection between the first and second junction members to transfer fluid or signals, and the engagement of the first tubular member and the second tubular member is secured by the plurality of locking clamps when the plurality of locking clamps are in the closed position, and wherein axial load is transferred between the first tubular member and the second tubular member. a first tubular member having a first load shoulder, and a first junction member, wherein the first tubular member is a tool dock for connecting to one of a drilling tool, a cementing tool, a casing tool, a completion tool, a wireline tool, a fracturing tool, a pump, and a sand screen; a second tubular member having an outer surface, a second junction member, a first groove formed around the outer surface, and a second load shoulder, wherein the second tubular member is a drive stem configured to be connected to a top drive; a sleeve member disposed around the second tubular member; a plurality of locking clamps distributed around the second tubular member and pivotally coupled to the second tubular member and configured to pivot in the first groove from an open position to a closed position, wherein the plurality of locking clamps are at least partially disposed between the second tubular member and the sleeve member, wherein each locking clamp includes: an upper end of each locking clamp disposed within the first groove, a profile of the upper end of each locking clamp and the first groove being shaped to allow the locking clamps to pivot in the first groove relative to the second tubular member, wherein the upper end includes a third load shoulder; a lower end of each locking clamp includes a fourth load shoulder; and wherein the fourth load shoulder of each locking clamp clamps on the first load shoulder and the third load shoulder of each locking clamp clamps on the second load shoulder when each of the locking clamps is in the closed position, the second load shoulder being in the first groove; an upper end of each locking clamp disposed within the first groove, a profile of the upper end of each locking clamp and the first groove being shaped to allow the locking clamps to pivot in the first groove relative to the second tubular member, wherein the upper end includes a third load shoulder; a lower end of each locking clamp includes a fourth load shoulder; and wherein the fourth load shoulder of each locking clamp clamps on the first load shoulder and the third load shoulder of each locking clamp clamps on the second load shoulder when each of the locking clamps is in the closed position, the second load shoulder being in the first groove; the sleeve member is configured to move in a vertical direction from a first position to a second position to move the plurality of locking clamps from the open position to the closed position, respectively, wherein the plurality of locking clamps open and close when a contact surface near the upper end of each locking clamp interacts with an inner groove of the sleeve member; and wherein engagement of the first tubular member to the second tubular member forms a connection between the first and second junction members to transfer fluid or signals, and the engagement of the first tubular member and the second tubular member is secured by the plurality of locking clamps when the plurality of locking clamps are in the closed position, and wherein axial load is transferred between the first tubular member and the second tubular member.