Your API is down. You found out from Twitter.

Kernelworks watches your endpoints and screams in your ops channel the second one breaks. Open source. Zero dependencies.

Star on GitHub

What it does

Slack, Discord or PagerDuty alert within one second of a bad status code. Before the tweets.

--alert slack

One binary. No node_modules black hole.

4.2 MB

Not just up or down. p95 creeping past your budget pings you too.

--p95 300ms

Laptop, CI, or a $4 VPS. It is one process that does one thing.

--daemon

A tiny YAML. No dashboard to click through, no account to make.

kernel.yaml

Keeps the last failed request and its full response so you debug the real thing.

--keep 50

Install it.
npm install -g kernelworks

Point it at your API.
kernelworks watch api.example.com

Wire the alert.
kernelworks alert slack #ops

"Caught a bad deploy before our status page did. Genuinely."

@devops_rina

"Replaced a $200/mo tool with a 4MB binary. My CFO loves me."

@budi_builds

"The one alert I do not mute. It only fires when it matters."

@sre_katherine

npm install kernelworks