Integration of libnormaliz in CoCoALib and CoCoA 5. libnormaliz is a C++ library for computations with rational cones and affine monoids and CoCoALib/CoCoA 5 offers a general environment for computations in Commutative Algebra. For mutual benefit we have developed a simple and fast interface between the two software libraries.par We present how this integration was designed, and then describe in detail the Normaliz functions we have made available in CoCoALib (and also in CoCoA 5).