Increment counters, set gauges, track arbitrary metrics via HTTP. No SDK required — one POST to bump a counter. Embed in any script, webhook, or cron job. Your own tiny StatsD.
Unlimited metrics, 90-day retention, dashboard, alerts. Self-hosted on your hardware, no usage caps, no phone-home, your data stays on disk forever.
One ~13MB binary. No Docker, no dependencies, no background daemons.