Callu

Spec sheet

What it does

Callu is a single-tenant incident management and on-call platform designed to run on your own infrastructure.Read 8 Oct 2026 · callu.app

Product

Callu is a self-hosted, single-tenant incident management and on-call platform.Read 8 Oct 2026 · callu.app

Deployment

The quick start requires Docker and Docker Compose and describes a seven-service Docker stack.Read 8 Oct 2026 · callu.app

Integrations

Inbound alerts support Prometheus, Grafana, generic JSON and webhooks; organization notification channels include Slack, Teams and webhooks.Read 8 Oct 2026 · callu.app

Security

The site describes encrypted provider, SMTP and SIP credentials, invitation-only onboarding, rotating refresh cookies and a tamper-evident audit trail.Read 8 Oct 2026 · callu.app

License

Callu is free and open source under the MIT License.Read 8 Oct 2026 · callu.app

Alert ingestion

Callu accepts per-service and application webhooks, with API keys, optional HMAC, rate limiting, and JSONPath templates.Read 8 Oct 2026 · callu.app

Data control

Callu is designed for one deployment per organization, and the site says telemetry can be sent to the operator’s own Jaeger instance or turned off.Read 8 Oct 2026 · callu.app

Deployment requirements

The quick start requires Docker and Docker Compose and uses published images; PostgreSQL is part of the architecture.Read 8 Oct 2026 · callu.app

Incident management

Features include a six-state incident lifecycle, an append-only timeline, notes, manual escalation and duplicate suppression.Read 8 Oct 2026 · callu.app

Language

The site says the interface is available in English and Turkish, with a per-user locale preference.Read 8 Oct 2026 · callu.app

License and audience

Callu is MIT licensed and describes itself as built for self-hosting, regulated, air-gapped, and sovereignty-conscious teams.Read 8 Oct 2026 · callu.app

Mobile

A mobile app is listed as planned on the roadmap.Read 8 Oct 2026 · callu.app

Notifications

Notification channels include email, SMS, voice, in-app push, Slack, Teams and webhooks.Read 8 Oct 2026 · callu.app

On-call

Schedules support timezone-aware rotations and overrides, with ordered escalation policies for users, schedules or teams.Read 8 Oct 2026 · callu.app

Pricing

The site says there are no per-seat fees and lists $0 per seat.Read 8 Oct 2026 · callu.app

Reporting

Reporting includes MTTA and MTTR summaries, incident trends, severity distribution, service uptime, and team performance.Read 8 Oct 2026 · callu.app

Roadmap limits

The site lists a mobile app as planned and says mandatory webhook and callback HMAC is still maturing; HMAC is currently optional.Read 8 Oct 2026 · callu.app

Status and services

The platform includes a service dependency graph, HTTP health checks, public status pages, uptime history and maintenance windows.Read 8 Oct 2026 · callu.app

Status pages

Callu supports public status pages with components, updates, uptime history, and email subscribers.Read 8 Oct 2026 · callu.app

Telemetry

OpenTelemetry exports can go to the operator's Jaeger instance, or be turned off; the site says there is no phone-home telemetry.Read 8 Oct 2026 · callu.app

Voice and video

Phone paging and per-incident WebRTC war rooms are included as core capabilities, and self-hosted Asterisk voice paging is listed as shipped.Read 8 Oct 2026 · callu.app

Plans and prices

Every Callu plan and price →

Where Specifiction places it

• IT Incident Management Software#12 of 318.6