OpenAlex

OpenAlex is an open-source index of scholarly research, including papers, authors, institutions, and topics. It is designed for researchers, librarians, and developers who need to analyze the global research ecosystem. The platform provides a free, comprehensive database of over 200 million scholarly works, with metadata such as citations, authorship, affiliations, and funding information. Key capabilities include a REST API for programmatic access, bulk data downloads, and a web interface for search and discovery. OpenAlex supports entity resolution and disambiguation, linking works to their authors and institutions, and offers filters and facets for narrowing search results. It also includes concept tagging using a hierarchical taxonomy, enabling users to explore research by field of study. The index is updated regularly and aims to cover all disciplines, with a focus on open access and reproducibility.