The Open Access AI Library (OPAAL) is a carefully curated archive of open-source materials dedicated to artificial intelligence. It serves as a central hub for researchers, developers, and enthusiasts to access high-quality, peer-reviewed papers, datasets, and tools. Each entry is selected to ensure relevance, transparency, and reproducibility, fostering a collaborative and ethical AI research environment. The archive supports innovation by bringing together cutting-edge knowledge that is freely available, both in terms of contemporary and historical research, encouraging interdisciplinary exploration and responsible development.