
Callu
6.3#25 in it incident management softwareFree planFree planWebAPISelf-hosted
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| Fact | Callu | Grafana Cloud Application Observability |
|---|---|---|
| Integrations | Inbound alerts support Prometheus, Grafana, generic JSON and webhooks; organization notification channels include Slack, Teams and webhooks. | Grafana Cloud connection tiles support Java, .NET, Beyla, Grafana Alloy, OTLP, and the upstream OpenTelemetry Collector. |
| License | Callu is free and open source under the MIT License. | The Grafana open-source project is distributed under AGPL-3.0-only, with listed Apache-2.0 exceptions; Grafana Cloud itself is a managed service. |
Callu is aimed at self-hosting, regulated, air-gapped and sovereignty-conscious teams that want to operate incident and on-call tooling on their own infrastructure. It requires Docker and Docker Compose for the stated quick start.
It suits software engineers who need to detect anomalies, investigate causes, and address application problems. Teams using OpenTelemetry or Prometheus can use its listed compatibility and Alloy pipelines.