OpenAlex has 240M. https://docs.openalex.org/api-entities/works https://docs.openalex.org/api-entities/works CORE has 431M. https://core.ac.uk/data https://cor

OpenAlex has 240M. https://docs.openalex.org/api-entities/works https://docs.openalex.org/api-entities/works CORE has 431M. https://core.ac.uk/data https://core.ac.uk/data Crossref has 165M. https://www.crossref.org/blog/2025-public-data-file-now-available/ https://www.crossref.org/blog/2025-public-data-file-now-avai... These datasets are all biased towards work published in the digital age, but it's important to note that work is coming out much faster now than it used to.