To gain a better understanding of the status and activity of the relayer, Hermes features a built-in telemetry service based on the OpenTelemetry observability framework, whose metrics can be exposed over HTTP for integration with the Prometheus monitoring system.
The official Hermes builds for Linux and macOS come with telemetry support since version
See the installation instructions for how to obtain the latest version of Hermes.
The telemetry service is not active by default, and must be enabled in Hermes' configuration:
[telemetry] enabled = true # default = false host = '127.0.0.1' # default value port = 3001 # default value
Please see the relevant section for Configuration for more general details about Hermes configuration options.