The project offers machine access to the data of the works catalogue. At the moment, the only available access format is REST API:

https://davidsakoyan.com/ru/open-data/api/opera/

Below is the link to a Swagger documentation for this API.

Like the other materials in this project, the data are published under the Creative Commons Attribution license. It means that anyone can use, reuse and distribute the data. The only requirement is the reference to the source.