The Sierra REST API provides access to the Sierra library platform database. It is intended for the use of Innovative customers and their authorized third-party associates, as well as Innovative’s commercial partners.
The Sierra REST API is a Representational State Transfer (REST) API service that provides JSON or XML responses and employs predictable, resource-oriented URLs. API calls are sent through port 80 and then switch to secure port 443. The system returns HTTP response codes to indicate errors.