Catch Silent Failures Before Customers Do

Your business broke at 3am. Did you know? You will now.

When something important stops working, you'll know first.

NotiLens watches your critical workflows, from AI agents and payments to cron jobs and automations, alerting you when something fails, stops running, or never happens when it should.

So you don't have to watch dashboards all day.
Because silence can be an outage too.

Start Free 7-Day Trial

Just want simple push alerts? Send your first one in one line →

ALERT TIME STATUS ACTIONS

Every day, businesses catch failures others miss

NotiLens monitors what your other tools ignore — silence, dropped flows, and invisible failures.

100K+
Events Processed
Business events tracked across all monitored topics
2,000+
Problem Alerts Sent
Silent failures, anomalies, broken flows & spikes — alerted in real time
99.9%
Uptime
Reliable monitoring you can count on around the clock
< 90s
Avg. Detection Time
From silent failure to alert in your pocket
Silence Alert - signup flow

"No new signup in 4 hours."

Your server isn't down. Logs look clean. But your signup flow silently broke at 2am — and nobody told you for 6 hours. NotiLens monitors silence. The absence of expected events is the alert no other tool gives you.

No signups for 4h  ·  Last: 3:47 AM  ·  check your signup-flow now
Threshold Alert - e-commerce

"Shopify: High-value order $2,340 from New York."

Not just failures — NotiLens alerts you when things go unusually well too. A high-value order from a new location, a revenue spike, or a milestone you never want to miss while you're away from the screen.

order #8821  ·  $2,340  ·  threshold >$500 exceeded  ·  new customer
Broken Flow — payment funnel

"14 checkouts. $0 revenue. No errors."

Users are reaching checkout, entering cards, and disappearing. Your payment processor shows no errors — but something in the middle of the flow is silently swallowing every transaction. Broken flow detection catches this before you count the damage.

payment.initiated → payment.completed  ·  14 starts  ·  0 completions  ·  60 min
Loop Detected — AI agent

"AI agent looped 12 times in 5 minutes."

Your autonomous agent is running — but going in circles with no progress. Without NotiLens, it burns through your entire API budget completely undetected while you sleep.

outreach-agent  ·  12 loops in 5 min  ·  API budget: 84% consumed
Silent Failure — cron job

"Cron ran, but processed 0 records."

The job completed without errors. Logs show success. But it did absolutely nothing — and that nothing cost you hours of missing data before anyone noticed anything was wrong.

daily-report  ·  status: completed  ·  0 of 200+ records processed
Degradation Alert — API performance

"API response time spiked to 2.3 seconds."

Your API is still responding — no error, no crash. But it's 12× slower than normal and users are silently abandoning your checkout. The damage compounds while everything looks fine.

/api/checkout  ·  2.3s response  ·  baseline: 180ms  ·  12× slower
Anomaly Detected — ML signal

"Signup spike — 3× above your baseline."

Something unusual is happening. A viral post? A bot sweep? A campaign hit? NotiLens flags it the moment the pattern breaks so you can act on the signal, not the aftermath.

ML-detected  ·  38/hr vs baseline 12/hr  ·  investigate traffic source
Silence Alert — revenue critical

"No Stripe payment in 6 hours."

Revenue has gone quiet. Your payment stack is running — but nothing is converting. This is the silence that kills businesses overnight and only gets noticed in the morning report.

revenue-critical  ·  last payment: 11:23 PM  ·  unusual for this hour
CI/CD Alert — deployment

"Production deploy failed — silently."

Your pipeline ran. The deployment finished. But the build step failed mid-way and nobody was paged. Your users discovered the broken feature before your engineering team did.

deploy-prod  ·  build failed  ·  feat/payment-retry → main
Works with your entire stack
Stripe Shopify GitHub AWS Sentry n8n Make Zapier OpenAI

Real-time alerts in 3 simple steps

Get set up in minutes — no engineering degree required.

1

Connect Your Stack

Link Stripe, Shopify, GitHub, AI agents, or any system via one-click integrations or webhooks. Custom code also supported.

2

Set It Up Your Way

NotiLens learns your baseline automatically. Add thresholds or custom rules if you want — or let it watch on its own.

3

Get Notified Instantly

Real-time push to iOS and Android. Only alerts that actually need your attention.

See it in action

One pulse for your entire business

Revenue, operations, development, AI agents, and business health — all in one place.

Revenue Signalsmoney
Stripe payment failed Payment > $X Shopify order > $X Order in location Y Refund spike Funnel drop-off detected
Silence Alertsunique
No new signup in Xh No new order in Xh No new event in Xh Expected job didn't run No payment since midnight
Infrastructureops
Server down / up API error spike High response time SSL expiring CPU / disk / memory alert
Developer Activitydev
GitHub new PR PR merged Deployment failed CI/CD broken New issue opened
AI Agent Monitoringagents
Agent task failed Agent looped > N times Human approval needed Agent timeout Token budget hit
Automations & No-Codeworkflows
n8n workflow failed Make scenario error Zapier zap missed Silent automation stop Missed trigger detected

Built for the failures no one else catches

Not another dashboard. NotiLens watches for what's missing, broken, or quietly wrong — and tells you before your users do.

Catches silence

No signup in 4 hours. No payment since midnight. NotiLens alerts you when expected events stop happening — the failure mode every other tool ignores.

Spots broken flows

14 checkouts, $0 revenue, no errors. Flow detection catches when a multi-step process starts but never completes — before you count the damage.

Detects anomalies automatically

ML learns your baseline. No thresholds to set. Spikes, drops, and unusual patterns get flagged the moment they break from normal.

Alerts the right person

On-call schedules, escalation chains, and per-user DND. Urgent alerts repeat until someone ACKs — nothing gets silently dropped.

Zero noise

Subscribe only to what matters. Deduplication, smart silence windows, and timezone-aware DND mean you hear signal — not noise.

Works in 5 minutes

Webhook, SDK, or one-click integration. Connect Stripe, cron jobs, or AI agents without touching your infra or writing YAML.

40+
Integrations
97%
Noise Filtered
5 min
Setup Time
7-day
Free Trial

Connects with tools you already use

One-click integrations with 40+ platforms — from AI agents to developer tools and business apps.

Shopify
Stripe
OpenAI
Claude
AWS
Zapier
Make
Datadog
WooCommerce
Shopify
Stripe
OpenAI
Claude
AWS
Zapier
Make
Datadog
WooCommerce
n8n
GitHub
LangChain
Sentry
Webhooks
AI Agents
Cron Jobs
REST API
Servers
n8n
GitHub
LangChain
Sentry
Webhooks
AI Agents
Cron Jobs
REST API
Servers

Send a simple push notification in one line

Don't need full event monitoring? Just send a push notification whenever something happens — a deploy finishes, a job completes, a customer signs up. One call to nl.notify(), and it lands on your phone instantly.

  • One API call — nl.notify('topic', 'message')
  • Works on iOS, Android & Web
  • Set a priority level per notification
  • Acknowledge (ACK) or Remind Me Later right from the alert
  • Add notes & comments for your team
Push Notification
Payment received — $299
billing · just now
Normal
Stripe invoice #1042 paid by AAB Corp.

Rotating on-call schedules for engineering teams

Define who gets paged and when. NotiLens manages the rotation automatically — daily, weekly, or custom intervals. Set active time windows per day so engineers are only paged during their shift. When nobody is on-call, alerts fall back to the account-level schedule.

  • Weekly, daily, or custom rotation length
  • Active hours per day — e.g. Mon–Fri 9am–6pm
  • Overnight shifts supported (e.g. 10pm–8am)
  • Holiday overrides — swap coverage instantly
  • Timezone-aware: evaluated in the owner's local time
Current On-Call
Alex Chen
Week 3 of 4 · ends Apr 30
Active
Rotation
Sarah K. Apr 9–16
Jordan M. Apr 16–23
Alex C. Apr 23–30 ← now
Priya S. Apr 30–May 7

Automatic escalation when alerts go unacknowledged

Build multi-step chains that page the right people in sequence. If the on-call engineer doesn't ACK within N minutes, the next step fires automatically — no manual intervention needed. Attach policies per topic or set an account-wide default.

  • Unlimited steps, each with its own delay
  • Target: on-call person, specific user, whole team, or everyone
  • Per-topic policy or account-level default
  • Full escalation log per alert — pending → resolved
  • Escalation kicks in even when on-call engineer has DND active
Escalation Policy — Production Alerts
1
Notify on-call
Immediately · Alex Chen
Pending ACK
↓ if no ACK in 10 min
2
Notify team lead
+10 min · Jordan Miller
↓ if no ACK in 20 min
3
Page entire team
+20 min · All members

Per-user quiet hours that respect timezones

Every team member sets their own schedule. Configure quiet windows per day of the week, add multiple time slots, enable overnight ranges, or block out a full holiday. NotiLens evaluates each person's DND in their local timezone — no UTC math required.

  • Configure Mon–Sun independently
  • Multiple slots per day — e.g. 12pm–2pm + 10pm–8am
  • Overnight ranges supported (start > end wraps to next day)
  • Full blackout periods for holidays or vacations
  • Critical alerts still escalate — DND never silently drops them
DND Schedule — Sarah K. (IST)
Mon10pm – 8am
Tue10pm – 8am
Wed10pm – 8am
Thu10pm – 8am
Fri10pm – 8am
SatAll day
SunAll day
Holiday blackout Apr 28 – May 5

Intelligent alerts without rules to write

NotiLens learns what normal looks like for every event type and automatically flags genuine outliers. No thresholds to tune, no YAML to write. Works across spikes, drops, broken multi-step flows, and silence — from day one.

  • Auto-learning baseline per event type
  • Spike & drop detection — unusual highs and lows
  • Silence detection — expected events that stop arriving
  • Broken flow detection — payment.initiated never reaches payment.completed
  • Cold-start mode shows calibration progress
Anomaly detected — signups
↑ Drop detected — 94% below baseline · today 2am
ANOMALY No signups for 6h · baseline: 12/hr

Alerting SDK for Python, Node.js, Go, and more

Integrate NotiLens in minutes with official SDKs in 7 languages. Monitor background jobs, APIs, AI agents, and scheduled tasks with a single unified interface. For AI-native apps, connect any agent via the MCP server — no SDK setup required.

  • Python, Node.js, Go, Rust, Ruby, PHP, Java
  • MCP server — Claude, GPT, and any LLM agent
  • Single call to emit an event, set priority, attach a URL
  • Works in background jobs, cron tasks, and API routes
  • Zero config — just a topic key
Python Node.js Go
import notilens

# Add topic & keys
nl = notilens.init(
  agent="my-agent",
  token="YOUR_TOKEN",
  secret="YOUR_SECRET"
)

# Send an alert
nl.notify(
  title="Payment failed",
  message="$149 · card_declined",
  priority="critical",
  url="https://dashboard/payments"
)

# Silence detection
nl.track("daily-report-job")

Built different from every tool you've tried

Every alternative has a reason people move on from it.

vs. PagerDuty, Datadog & Incident.io
Built for enterprise DevOps. Overkill if you're not.
6-week onboarding. Per-host pricing that scales against you. No business signal support — only infrastructure. Not built for founders or small teams.
vs. Pushover & basic push tools
Raw notifications. No intelligence, no context.
Sends whatever you tell it to. No silence detection. No ML anomaly. No on-call scheduling. Just a dumb pipe that fires when you fire it.
vs. DIY webhooks, scripts & vibe coding
Months of engineering to get it halfway right.
Alert logic, dedup, retry, escalation, on-call rotation — it compounds fast. Vibe-coding it takes an afternoon. Owning it takes forever.
NotiLens does all of this — set up in 5 minutes.
Purpose-built for founders, builders, and small teams who need signal, not noise.

Founders sleep better

Real stories from people who stopped finding out about problems from their users.

"Finally stopped finding out my cron jobs failed from users. NotiLens caught a skipped ETL step at 2am before anyone noticed. That's the whole value prop right there."

Marcus Holloway
Multiple Micro-SaaS Founder· Austin, TX

"Our third-party sync webhook was silently dropping for 1 hour. Zero errors in logs, zero alerts. NotiLens was the only thing that flagged it."

Carlos Luna
Founder · E-commerce Startup · Madrid, Spain

"As a solo founder running an AI agent pipeline, I kept discovering loops through user complaints. NotiLens just knows when something's off. The ML baseline thing is genuinely useful."

Lena Fischer
Freelance AI Consultant · Berlin, Germany

"Smart Silence Detection sold me. Didn't want to manually set windows for every topic. It learned my pattern in a few days."

Selin Arslan
Indie Hacker · Amsterdam, Netherlands

"Run Zapier workflows for 3 clients. One broken node used to mean a support ticket 2 days later. NotiLens catches the silence and we fix it before the client even knows."

Claire Dubois
Agency Owner · London, UK

"Got an alert about a 3x signup spike from a Reddit thread we didn't even know existed. Scaled our DB before it became a problem instead of after."

Owen Mackenzie
Founding Engineer · Toronto, Canada

How Collabzap monitors everything with NotiLens

A real-world look at how a growing collaboration marketplace startup set up 8 alert areas in under an hour.

NotiLens gave us the peace of mind we didn't know we were missing. Before, we'd find out about problems from users. Now we find out first — and fix them before anyone notices.
Ankit, Product & Operations – Collabzap
Read full case study →
8
Alert areas configured
<1h
Setup time
3
Team members notified
What they monitor
New user signup Growth signal
No signup in 24 hours Silence alert
Signup spike Anomaly detection
New connection between users Activity signal
Server uptime Infrastructure
Disk space threshold Infrastructure
OpenAI token usage Cost monitoring
Payment flow Revenue critical

Simple pricing — no surprises

One failed Stripe payment or agent workflow failure caught by NotiLens pays for a year of Pro.
Start free, upgrade when you need more.

Monthly
Annual ✦ 2 months free
⚡ Push
BASIC Push
$20/yr
Billed once annually · ~$1.67/mo
Founders & devs who just need a ping when something happens.
  • Unlimited topics
  • 1,000 pushes/month
  • Custom signal rules
  • Notify up to 1 person per topic
  • 2 devices per person
  • iOS, Android & Web app
  • nl.notify() SDK
  • Integrations
  • Priority levels
  • Acknowledgement (ACK)
  • Remind Me Later
  • Notes & comments
  • Silence detection
  • ML anomaly detection
  • AI summaries
  • On-call & escalation
Get started
Pro
$29/mo
Solo founder with servers, agents, or heavier integrations.
  • Unlimited topics
  • Watches 5,000 events per month
  • Unlimited custom signal rules (user-defined, e.g. amount > $100)
  • Notify up to 2 people per topic
  • 3 devices per person
  • Silence detection
  • Acknowledgement (ACK)
  • Remind Me Later
  • Notes & comments
  • AI-powered summaries
  • Add-on events
  • On-call & escalation
Start 7-day trial
Enterprise
Custom
For larger teams, high-volume pipelines & organizations that need SLA guarantees and enterprise controls.
  • Unlimited everything
  • 500K+ events per month
  • Unlimited members
  • Unlimited topics
  • Unlimited custom signal rules per topic
  • 5+ devices per person
  • On-call & escalation
  • SSO / SAML
  • Audit logs
  • Priority support
Contact us →

Your business is running right now.
Are you watching?

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