post
https://{sandfly-api-host}/v4/responseaction/sshpubkey///host//user/
Performs an SSH key response action for a specific user on a specific host. Requires the responder role. For 'remove' actions, a last-key protection safety check denies the request with HTTP 409 if the host would be left with zero SSH keys known to Sandfly after removing the key for this user; set allow_last_key_removal=true in the request body to override.