OPNsense
Firewall
OPNsense is an open-source, easy-to-use, and easy-to-build firewall and routing platform
Widgets and capabilities
Firewall MonitoringDisplays a summary of firewalls.
Adding the integration
Create the connection under Management → Integrations. See Managing integrations.
Secrets
Use a dedicated API-only user with Lobby: Dashboard and Reporting: Traffic privileges.