The COMPADDITIVE project brings together expertise to revolutionize tooling production for composite manufacturing by adopting innovative AM technologies with significant advantages over conventional manufacturing. The AM design freedom for achieving complicated geometries as well as its capability to produce near net shapes reducing machining needs, lead time and waste material is the main rationale behind the COMPADDITIVE project. Moreover, producing one off parts or low-volume production is possible with AM at no added cost. Despite the advantages, WAAM / FFF still have low TRLs especially for tooling applications/materials. Thus, COMPADDITIVE aims to address the challenges n to be overcome for wider adoption of these technologies in highly demanding sectors like aerospace. Addressing reliability, accuracy and productivity, which are still the main challenges of AM technologies, will be the main achievement of this project by utilising a feedforward process control mechanism verified by in-process monitoring and computationally efficient process modelling tools. COMPADDITIVE addresses the full process chain spanning from the feedstock quality on the part quality and defect-free process development to an integrated digital thread for AM processes aiming at >60% lead time reduction and >25% cost reduction for tooling to be proven on three selected use cases.