Distributed tracing for Spree — boots the OpenTelemetry SDK from standard OTEL_* environment variables and turns Spree workflow, event, webhook and payment-gateway instrumentation into spans

ActionView instrumentation for the OpenTelemetry framework

Rails instrumentation for the OpenTelemetry framework

ActionMailer instrumentation for the OpenTelemetry framework

Active Model Serializers instrumentation for the OpenTelemetry framework

ActiveStorage instrumentation for the OpenTelemetry framework

App monitoring for Rails. Captures requests, queries, jobs, cache, views, HTTP calls, mail, and exceptions with a waterfall visualization dashboard.

Foam observability for Ruby on Rails (logs, traces, errors) via OpenTelemetry

OpenTelemetry-based observability instrumentation for the LaunchDarkly Ruby SDK. Works with Rails, Sinatra, and any Rack-compatible framework.