OpenAIRE’s Annual Report 2023 captures a year of growth, delivery, and collective action across our network. It highlights progress in strengthening open scholarly communication services, expanding our community and partnerships, and supporting Europe’s transition toward transparent, reproducible, and responsible research. The report showcases key achievements across our services, policy work, and training programmes, and reflects the continued commitment of our members to build a trusted, open, and interoperable research ecosystem for all.