The libraries supports access to APIs from many sources and publishers for textual data and bibliographic metadata. Use this page to find out more. Different publishers will have different use restrictions and procedures for accessing this data. In addition, we support access to several linguistic corpora. Licenses may also vary for re-use and machine learning use. If you have questions about using any of these sources for NLP or machine learning projects or other work, please feel free to contact me with the details of your project.