The eWise Categorisation-as-a-Service (CaaS) API adds automatic organizational capabilities to financial applications. The API combines raw transactional data and an AI based on big data capabilities. Clients can understand their spending patterns, and focus on business strategy. JSON is the preferred format for data exchange and API Keys are required for authentication. eWise offers a secure way to bring together all of the customer's financial accounts. eWise is based in Switzerland.