The main authors of the Mrcc code and their major contributions are as follows.
general design; driver program (dmrcc); input analyzer (minp); automated, string-based many-body code (goldstone, xmrcc, mrcc); domain construction for local correlation calculations (mulli); particular integral evaluation algorithms (integ); direct and density-fitting (DF) Hartree–Fock (HF) algorithms, DFT algorithms (scf); density-fitting MP2 and RPA algorithms (drpa); explicitly correlated models (mp2f12)
local correlation methods and multi-level approaches (drpa); closed-shell coupled-cluster singles and doubles with perturbative triples [CCSD(T)] code (ccsd); parallelization of CCSD(T)
excited-state approaches (cis), range-separated double hybrid functionals (dft), bond functions (integ)
closed-shell CCSD(T) code (ccsd); parallelization of CCSD(T)
quadratic and multi-configurational self-consistent field algorithms (scf)
open-shell CCSD(T) code (uccsd)
integral transformation and orbital optimization code (ovirt); domain construction for local correlation calculations (mulli)
density-fitting integrals (integ)
installation script (build.mrcc), geometry optimization, basis set optimization, the Mrcc homepage
QM/MM and embedding approaches (qmmod)
solvation models
Hartree–Fock self-consistent field code (scf)
closed-shell CCSD(T) code (ccsd)
four-center atomic orbital integral code (integ)
orbital relaxation contribution to gradients for density-fitting methods, density-fitting MP2 gradient (prop)
orbital relaxation contribution to gradients for coupled-cluster methods (prop)
double hybrid and van der Waals density functionals (dft)
explicitly correlated models (mp2f12)
In addition, Bence Kornis, Levente Dojcsák, Huliyar S. Nataraj, and Sanghamitra Das have also contributed to the development of the Mrcc code.