About the API Explorer
The API Explorer provides a limited interface for the REST API as well as giving a view of the abilities of the REST API.
The API Explorer resides on the Firepower Management Center, and can be accessed via the Firepower Management Center at:
https://<management_center_IP_or_name>:<https_port>/api/api-explorer
This explorer provides the list of APIs available on the Firepower Management Center, and their details.