Know when your app breaks. Before your users tell you.
Logsitter watches your Vercel logs and pings Slack the moment something errors. Error monitoring without the Sentry price tag — and Slack alerts that never cost per seat.
No credit card · Connect with a single log drain · Free up to 50k events/mo
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Request ID: 643af4e3-975a-4cc7Watches every kind of failure Vercel can throw
From log to Slack in two minutes
No agent to install. No instrumentation. Logsitter reads the logs Vercel already produces.
Connect your Vercel project
Add Logsitter as a log drain — paste one URL into your Vercel dashboard. We start receiving logs instantly, no SDK or code changes.
Point us at Slack
Drop in a Slack incoming webhook. Choose the channel. That's the whole integration — no Slack paid plan, no per-seat fees.
Get pinged when it matters
We classify errors, group duplicates, and silence the noise. One crash-loop becomes one alert — not five thousand.
Lightweight, but not lightweight on the things that matter
Everything you need to catch real incidents — and nothing you'll never touch.
Smart deduplication
We fingerprint every error and collapse repeats into a single issue. Variable IDs, timestamps and ports are normalized away.
Noise control built in
Renotify throttling, path ignore rules and severity thresholds mean your channel stays signal, not spam.
Real-time, no polling
Log drains stream straight to us over HTTPS. Alerts land in Slack seconds after the error happens.
Severity that's actually right
A crashed function with no response is fatal even if Vercel labeled it info. We infer real severity from status codes and output.
Signed & verified
Every drain delivery is HMAC-verified against your project secret. No spoofed alerts, no leaked tokens.
Free to alert
Slack incoming webhooks cost nothing. Unlike Sentry, you're not paying per seat to see your own errors.
The 80% of error monitoring you actually use
If you live on Vercel and Slack, you probably don't need the heavyweight suite.
| Logsitter | Heavyweight tools | |
|---|---|---|
| Slack alerts | Free, unlimited | Paid plans / per seat |
| Setup | One log drain URL | SDK + instrumentation |
| Reads Vercel logs natively | Yes | Partial |
| Code changes required | None | Wrap your app |
| Pricing model | Flat & generous | Per-event, scales fast |
Priced like a tool, not a tax
Start free. Upgrade when your traffic does. Never pay per seat to read your own logs.
For side projects and small apps.
- 50k events / mo
- 1 project
- Slack alerts
- 7-day issue history
For teams shipping to production.
- 2M events / mo
- Unlimited projects
- Custom alert rules
- 30-day history
- Priority delivery
Your next outage is already in the logs.
Catch it before your users do. Connect a project and get your first Slack alert in the next two minutes.
Start free