# Examples Sample APIs following the guidelines are available at [adidas-group GitHub](https://github.com/adidas-group). The samples includes the following: ### [Simple API](https://github.com/adidas-group/demo-simple-api) Very simple API including implementation, testing and full CI/CD lifecycle. ### [Approval API](https://github.com/adidas-group/demo-approval-api) Real-world API with state transition, API key client app authentication, exposed via API management. ### [Orders API](https://github.com/adidas-group/demo-orders-api) Sample API used as the template for newly created projects at Apiary.