Is it possible to get info using API about any alert was triggered?

Hello, I read the documentation https://grafana.com/docs/grafana/latest/http_api/alerting_notification_channels/ but didn’t get information I want. Is it possible to execute http request to grafana and get information that one or more alerts already happened. I don’t want to use webhook, just execute get request.
Also didn’t find information about fields in response, for example what field sendReminder means?
Thanks for answer.