OpenAlex is a free and open catalog of the world’s scholarly research system. It is a nonprofit project that indexes and links over 250 million scholarly works from 250 thousand sources. You can search, analyze, and export the data for free, or upgrade to access more features and support the project. OpenAlex offers an open replacement for industry-standard scientific knowledge bases like Elsevier’s Scopus and Clarivate’s Web of Science. Compared to these paywalled services, OpenAlex offers significant advantages in terms of inclusivity, affordability, and availability. OpenAlex is: OpenAlex is a map of the world’s research ecosystem, linking components (like papers, institutions, journals, topics, SDGs, authors, etc.) to one another. Research outputs are the main artery of the system.