Every collection of APIs should have a unique identifier. This unique API identifier, or AID, serves as a human and machine-readable reference for organizing and managing various APIs. Similar to a barcode, a unique identifier helps track APIs, whether you are discovering them or putting them to use.
APIs.json Specification AID Info
Message: There is an aid.
Example
"aid: apis-io"Policies
Unique Identifiers for APIs.json Contracts
Unique identifiers for your API contracts and the APIs they contain give you the reference points you need for automation, discovery, and governance at scale.