# Working with APIs

APIs provide extensibility by enabling you to leverage JReport components and services, and build them into other applications, thus integrating JReport with their existing platform infrastructure.

For details about the usage of APIs available in JReport Enterprise Server, see JReport Enterprise Server Javadoc located in `<install_root>\help\server\en\api`.

This chapter introduces how to install and utilize two types of significant APIs:

- JReport Server API
- DHTML API