# Getting Started

The ExpereAPI is a collection of operations (methods) that provide a means to exchange data (information) and documents (generated outputs) between the Expere Document Engine and other systems including third-party applications. The service is primarily used to submit transaction and document information for processing to a generated output and, as such, enables applications to request document(s) and document information from the Expere platform.

The following topics provide an introduction to the ExpereAPI:

- Accessing the Services
- Authentication and Authorization
- Error Handling and Messaging
- Installation and Deployment