Tempo Accounts REST API is designed for developers who wish to integrate with Tempo add-ons. The REST API is a standard interface for interacting with the Tempo Account module. Use the REST API browser built into JIRA to browse the services provided by the Accounts REST API. The examples in this tutorial use curl and are meant to give an idea of the ideal implementation of REST API for common use cases.
Note this is not a complete list of available services.
For more detailed information on REST see JIRA REST APIs documentation.