Studying aurora and airglow in planetary atmospheres necessitates an accurate understanding of atomic and molecular cross-sections for ionization, excitation, and dissociation. However, model inter-comparisons often result in discrepancies due to differences in cross-section input data rather than the underlying physical approximations. To address this issue, we introduce the Atomic and Molecular Cross-section for Ionization and Aurora Database, ATMOCIAD, a comprehensive database of cross-sections for the main atmospheric species in the solar system, and beyond. ATMOCIAD currently includes photon and electron impact data, with ongoing efforts to expand coverage to proton and hydrogen impacts. By incorporating cross-sections from various sources and providing set recommendations based on energy-loss computations, ATMOCIAD offers a more consistent and reliable foundation for studying the interactions between stellar radiation and planetary atmospheres.