Use the Web API with metadata
You can perform any of the metadata operations with the Web API that you can perform using the organization service. This section provides guidance about how to use the Web API with the entity types included in Web API Metadata Entity Type Reference.
Note
Information about using Web API with metadata in Dynamics 365 Customer Engagement (on-premises) is now available in the Power Apps documentation at: Use the Web API with metadata.
See also
Browse the Metadata for Your Organization
Use the Organization service with Dynamics 365 Customer Engagement (on-premises) metadata
What is Power Apps?