Developer Monitoring

Monitor your pipelines, APIs, and deploys in real time

NotiLens gives developers a single alert layer for CI/CD failures, API error rates, GitHub activity, and SSL expiry — firing the instant something breaks or goes unexpectedly quiet.

Works with your developer tools
GitHub
GitLab
CircleCI
Sentry
Datadog
Webhook

Developer tools fail in the gaps between your checks

Deploys break silently. Error rates creep up slowly. Pipelines stall without firing a single alert. By the time you notice, the blast radius has already grown.

Production deploy failed silently

Your CI pipeline reported success. The deployment never applied. No rollback, no exception, no Slack message — just stale code in production while your team shipped features on top of a broken base.

API error rate slowly climbing

A memory leak pushed your auth endpoint from 1% to 22% error rate over 40 minutes. No single spike hit your threshold. Users were silently failing to log in while your monitors stayed green.

GitHub activity dropped to zero

Your team's commits went silent for five days. A branch protection rule change broke the developer workflow — but no one noticed until the sprint review and the sprint was half wasted.

The alert layer developers actually want

No dashboards to check. No log files to grep. NotiLens fires the moment something in your developer workflow breaks its expected pattern.

CI/CD broken flow detection

Define the expected event sequence for your deploy pipeline. If workflow.completed fires but deploy.triggered never follows, NotiLens alerts your team before users notice.

API error rate anomaly detection

NotiLens computes a rolling error rate baseline per endpoint and fires the moment your current rate exceeds it by a configurable multiplier — catching slow climbs, not just spikes.

GitHub & pipeline silence alerts

Forward GitHub or GitLab webhook events to NotiLens. Set a silence window — if commit or push activity drops below your threshold, you're alerted immediately. No plugin required.

SSL & threshold monitoring

Send cert expiry events from any language using the SDK or webhook. NotiLens fires a threshold alert when your certificate window drops below your configured buffer — days before it expires.

Per-team alert routing

Route deployment alerts to engineering, API error alerts to on-call, and GitHub activity to team leads — each topic with its own subscriber list, thresholds, and Do Not Disturb schedule.

Acknowledgement (ACK)

Critical deploy or API alerts repeat every 5 minutes until someone acknowledges them. A broken pipeline at 3am won't go unnoticed until your users are already filing tickets.

What NotiLens sends your engineering team

Context-rich, actionable alerts — pushed to your phone the moment a pipeline, endpoint, or workflow breaks its expected pattern.

NotiLens Live Feed — Developers
Production deploy failed silently — pipeline reported success, deploy never applied
Topic: deploy-pipeline • CI/CD Alert • 3 min ago
Critical
API error rate 22% on /api/auth — 18× above baseline
Topic: api-errors • Rate anomaly • 9 min ago
Critical
No commits to main in 5 days — normally 8–12/day
Topic: github-activity • Silence alert • 1 hr ago
Warning
SSL certificate expires in 3 days — auto-renewal may have failed
Topic: ssl-monitor • Threshold alert • 2 hr ago
Warning

A successful pipeline status doesn't mean a successful deploy.

CI reports green. The deployment step silently skipped. Your error tracker sees nothing — because there's no exception to catch. NotiLens watches the event sequence, not just exit codes, so broken flows are caught before users report them.

Does it work with GitHub Actions? +
Yes. NotiLens receives webhook events from GitHub — PR merges, workflow completions, deployment status changes. Set up a broken flow alert for deploy.triggered → deploy.completed to catch failed deployments that don't fire an error.
Can I monitor API error rates without changing my code? +
Forward request events from your NGINX, API gateway, or middleware. No code changes to your application. NotiLens tracks error rates per endpoint and fires when they exceed your baseline.
How is this different from Datadog? +
Datadog is a full observability platform built for large engineering teams with dedicated DevOps resources. NotiLens is built for small teams who need fast, actionable alerts without 6-week onboarding, complex YAML configs, or per-seat pricing.
Can different team members get different alerts? +
Yes. Topics control who receives what. Route deployment alerts to engineering, API error alerts to on-call, and GitHub activity to team leads — each with their own subscriber list and thresholds.

Give your engineering team eyes on every signal.

No credit card required — 7-day free trial.

Start 7-Day Free Trial