The text discusses the use of Aiven's API, which is an HTTP API with token authentication and JSON-formatted data. It provides a step-by-step guide on how to access the API, including obtaining an auth token, using cURL for terminal commands, and utilizing Postman for GUI applications. The text also demonstrates how to create Aiven services from the API. Additionally, it mentions other resources available such as the Aiven API reference, command line tool, and Terraform provider.