# Customer API Welcome to the Customer API documentation. Use the Customer API if you are a Jiko customer integrating Jiko directly into your internal systems. View Customer API Reference → ## Quick Links - [Use Cases](/products/customer-api/use-cases/manage-users): most common business workflows with the corresponding API endpoints and sequence - [Guides](/products/customer-api/guides/oauth/getting-started): how to authenticate, sign messages and get sandbox access - [Changelog](/products/customer-api/changelog)