At ArcGIS Enterprise 10.9.1, named users in the Enterprise portal must be licensed with the ArcGIS Knowledge user type extension to create, edit, and update Knowledge Graph Server services. At ArcGIS Enterprise 11.0, your account no longer requires the ArcGIS Knowledge user type extension, but you must be signed in to the Enterprise portal to create, edit, and update Knowledge Graph Server services.
The graph resource represents the graph associated with a knowledge graph service. That graph has entities and relationships, which are stored in a graph database.
The graph resource allows clients to query and edit the entities and relationships in the graph.
The response format. The only supported format type is html.
The following is an example request URL to get information about the graph resource for a knowledge graph service named SupplyChain.