You can use the vRealize Automation REST API to delete a key pair.
About this task
Log in to vRealize Automation as a tenant administrator.
Verify that the host name and fully qualified domain name of the vRealize Automation instance are available.
If you are not using the API Explorer, verify that you have a valid HTTP bearer token that matches your login credentials. See REST API Authentication.
curl –X “Delete” --insecure -H "Accept:application/json" -H "Authorization: Bearere $token" https://$host/iaas-proxy-provider/api/keyPairs/26
The output contains an empty HTTP response body and the following status code.
204 No Content