It is not directly listed.
E_{cohesive} = E_{bulk} - \sum_{i \in bulk} n_i E_{i}
Where n is the number of atoms of type i in the bulk structure, and E_i is the energy of isolated atom i. Usually if you want to analyze phase stability, you can use the formation energy, which defined with the pure elemental crystals as the reference states in MP. If you want to calculate the cohesive energy itself, you should use VASP to calculate the isolated atom energies. You can find these values listed in the pseudopotential file, which we cannot give out publically, you need to have a vasp license.