Which API is used to discover metadata about Tableau content?

The Metadata API is specifically designed to facilitate the discovery of metadata about Tableau content. This includes useful information about various Tableau elements such as workbooks, dashboards, data sources, and the relationships between them.

Utilizing the Metadata API enables users to extract insights regarding the organization and structure of their Tableau content, including lineage and usage metrics, thereby providing a comprehensive understanding of how data flows and how it is utilized within the Tableau environment. This capability is crucial for data governance, understanding content dependencies, and optimizing content usage.

In contrast, other APIs serve different purposes: the Webhooks API is focused on event notifications; the Document API allows access to the content of Tableau documents for tasks like fetching visual elements; and the REST API is more geared towards managing Tableau Server resources and user interactions rather than specifically dealing with metadata. Each API has its specific functionality, making the Metadata API the appropriate choice for discovering metadata about Tableau content.