Know when something breaks in your SaaS. Before your customers do.

CriticalBuzzer is your system’s heartbeat that monitors your entire stack—business events, payments, server errors—and buzzes you repeatedly until the issue is fixed.

Start Monitoring In 60 Seconds How it Works
LIVE MONITORING
✓ Payment Processed ($29.00) 10:41 AM
✓ User Signup (user_88a) 10:42 AM
⚠️
Stripe Webhook Failed

Payment success rate dropped to 63%. Potential revenue loss detected.

✓ Health Check: OK 10:43 AM
Early Detection

Risk mitigation system built for early detection

  • Know what’s about to break.
  • Understand how urgent it is.

CriticalBuzzer detects risk early, pinpoints what’s about to break, and gives you a clear window of time to act.

Most systems fail quietly, until it’s too late.

The worst nightmare isn’t a crash. It’s a silent failure.

  • × Your server goes down at 3 AM.
  • × Stripe webhooks start failing, and you lose revenue for hours.
  • × Signups drop to zero, but your status page says "All Systems Operational."
"Your users notice before you do. They complain. They churn. You wake up to a disaster that could have been fixed in 5 minutes."
ALERT: CHURN DETECTED

How it works (without the fluff)

CriticalBuzzer is a universal webhook inbox that accepts any JSON event and automatically decides when something is wrong.

Step 01 Create an alert
→
Step 02 Get an endpoint
→
Step 03 Send any JSON

When something feels wrong in your system, send the data. No SDK. No setup. Any JSON.

✓
If the alert fires, you know it deserves attention.

CriticalBuzzer Watches Your App Like A Hawk.

We don't give you another complex dashboard to stare at. We give you an alarm.

🔔

Persistent Alarms

It rings until you acknowledge it. Desktop & Mobile. Impossible to ignore.

📱

Multi-Channel Assault

Slack, Telegram, WhatsApp, Voice Calls. We find you wherever you are.

📈

Escalation Policies

"Alert me every 5 minutes until fixed." We don’t stop until your problem is fixed.

It Speaks Plain English, Not "Log-lish".

Stop trying to decipher cryptic error codes. AI explains exactly what happened.

❌ The Old Way

Error: 500 Internal Server Error.
CPU Load > 90%
at /var/www/html/index.php:42
Stack trace: #0 {main}

✅ The CriticalBuzzer Way

🤖

"Your payment success rate fell from 91% → 63% in the last hour. Stripe API is likely failing. Potential revenue loss detected."

🤖

"User activation rate dropped 16% today. Login page is slow. Suggest optimizing DB queries."

No Mental Gymnastics. Just Clarity.

You create a Critical alert. If it triggers → it’s critical.

One alert → one meaning → one outcome

Traditional Tools

Define Complex Metrics

Spend hours configuring what "healthy" looks like.

Tune Signal-to-Noise

Constantly adjust thresholds to avoid false alarms.

Learn Their Logic

Adapt your workflow to their rigid data models.

> User asks: "Is this actual downtime or just a blip?"
> System: "Wait for 5 more data points..."

CriticalBuzzer

It adapts to your intent. You decide what’s critical. The system simply watches and tells you when it happens.

  • ✓
    One alert → one meaning
  • ✓
    No onboarding call needed
  • ✓
    If it fires → it matches your intent

"If it fired → it’s worth your attention."

Ready to simplify? Create your first alert in under 60 seconds.
Show Me The Code

Setup in 60 Seconds.
No DevOps Degree Required.

1

Create account.

2

Copy your unique API Key.

3

Send any event (or let your AI agent do it).

Works with everything

Node.js Python Go Next.js AI Agents 
await fetch('https://api.criticalbuzzer.com/alert', {
  method: 'POST',
  body: JSON.stringify({ 
    key: 'YOUR_API_KEY', 
    event: 'payment_failed' 
  })
})
✨ Perfect for Cursor & Vibe Coders

The Monitoring Layer for AI Agents.

Building with AI? CriticalBuzzer is MCP-Native. Your coding agents can instantly auto-detect critical flows and configure alerts for you.

1. Auto-detect

Agents identify critical paths like payments and auth.

2. Auto-configure

Zero-config setup injected directly into your codebase.

3. Auto-fix

AI suggests code fixes based on error patterns.

Founders Are Sleeping Better.

"

I used to check my dashboard 50 times a day. Now I just wait for the buzz. If it's silent, I know I'm making money.

Alex J.
Indie Hacker
"

CritialBuzzer caught a silent Stripe webhook failure that would have cost me $2k in lost renewals. It paid for itself in 10 minutes.

Sarah K.
SaaS Founder
"

Finally, monitoring that talks like a human. I don't need graphs, I need to know if my app is broken. This delivers.

Mike T.
CTO

Peanuts Compared to One Hour of Downtime.

Starter

$9/mo
  • ✓ 3 Monitors
  • ✓ WhatsApp + Email
  • ✓ Basic AI
Start Starter
Most Popular

Growth

$29/mo
  • ✓ 10 Monitors
  • ✓ Full AI Interpretation
  • ✓ Nagging Alerts
  • ✓ Cron + Stripe Tracking
Start Growth

Founder Mode

$79/mo
  • ✓ Unlimited Monitors
  • ✓ Voice Call Alerts
  • ✓ Nagging Alerts
  • ✓ "Doctor" Panel
Start Founder Mode

Common Questions

Do I need to install an SDK? ▼
No. It's API-first. If you can send a web request (fetch, curl, axios), you can use CriticalBuzzer. It works with any language or framework.
Does it replace Datadog? ▼
CriticalBuzzer is for business-critical awareness. Datadog is for deep metrics. We are the alarm clock; they are the autopsy report. You need us to wake you up.
Can I mute the nagging? ▼
Yes, once you acknowledge the alert, the buzzing stops while you fix it.

Build With Confidence.
Grow Without Barrier.

Don't let silent failures kill your momentum. Join the founders who know their business is safe, 24/7.

Get Your Peace of Mind Now

Start Free · No Credit Card · 60-Second Setup