A receiver, not another tool to run
Add Freesbe's URL under webhook_configs with send_resolved, route the alerts you want to it, and reload. Child routes with matchers send each team's alerts to its own channel.
Freesbe's Alertmanager integration takes alerts from Alertmanager's webhook receiver and posts each one into the channel you pick, as a card with its severity, summary, instance and labels. The card turns green when the alert resolves. With Alertmanager's API reachable, anyone in the channel can silence the alert for an hour from the card.
For Ops and on-call engineers who want the whole team to see what's firing.

Severity comes from the severity label, where it's firing from instance or host, and the text from the summary and description annotations. Cards link to the alert's source in Prometheus, or its runbook_url.
Start free with up to 10 people and try it today, or book a 20-minute demo with the people who make Freesbe.
A Silence for 1 hour button on firing alerts, a live problems board pinned in the channel, and daily or weekly reports on what fired.
Prometheus Alertmanager is included in every plan, including Free.
The help guide shows every screen and setting. Grafana and Alertmanager
Free for up to 10 people, no card and no time limit. Connect what you already use in an afternoon.