RESTful APIs that provide searching and reporting capabilities.

ONESOURCE Currency APIs provide developers access to a list of currencies that are curated by Thomson Reuters

ONESOURCE Indirect Tax Determination helps organizations seamlessly manage all aspects of indirect tax, from research to determination to compliance. It enables organizations to: Accurately assess taxes, thereby eliminating errors or penalties due to over- or under-assessment of taxes Manage extremely complex tax regulations for global markets Manage compliance costs by reducing the cost and risk of inaccuracies Streamline data collection for tax returns by integrating with ERPs and financial applications  

ONESOURCE Domains APIs provide developers access to a list of various tax and business areas that are curated by Thomson Reuters

ONESOURCE Entities APIs

Cloud Determination REST APIs for Exempt Certificates.