This assumes you have created a RabbitMQ user with the administrator tag.

Refer to the RabbitMQ REST API documentation.

The curl command with the --user option can be used to make an API connection to RabbitMQ. In this example, John Doe will make a connection to the RabbitMQ server listening on port 15671 and then get the cluster name.

curl
--request GET
--user john.doe:itsasecret
--url http://hostname:15671/api/cluster-name

Something like this should be returned.

{
    "name": "rabbit@node1.example.com"
}