Early access — first 100 users get 50% off forever

Your AWS bill just spiked.
Did you notice?

StackAlert alerts you the moment any AWS service spikes — with exactly which service caused it and by how much. Delivered to Slack, Telegram, or PagerDuty. For teams spending $1k–$20k/month on AWS.

StackAlert
App · just now
via Telegram
⚠️ Cost Spike Detected — EC2 (eu-west-1)

Your EC2 spend jumped +312% in the last 6 hours compared to your 7-day average.

7-day avg
$18.40/d
Today
$75.20
Culprit
i3.2xlarge

Real Telegram message · Sent within 6 hours of the spike

Delivered via: Slack Telegram PagerDuty
$340
avg unexpected
AWS overcharge
€4/mo
StackAlert
Solo plan
7 yrs
1 alert caught
pays for this
60s
setup time
no YAML
GDPR · EU data residency Open-source Lambda · audit the code 60-second setup · no YAML
The problem

AWS billing tools were built for enterprise.
Not for your team.

Small teams get the same tools as Fortune 500 companies — dashboards with 200 settings, email alerts that arrive too late, and a $500/month minimum.

"

A few years ago my startup was killed by an AWS mistake that ran overnight. We had no idea until the bill arrived.

Hacker News · 2023 · 847 upvotes
"

AWS billed me 700% more than expected after an RDS version upgrade. I only found out at the end of the month.

Hacker News · Dec 2025

The tooling gap:

😤
AWS Native
Free but clunky. Email-only. No Telegram. No per-service context. Alerts arrive too late.
StackAlert
✨
€4–39/month
Telegram alerts with per-service context. No dashboards. 60-second setup.
🏢
CloudZero / nOps
$500–$2,000/month. Built for 100+ engineer orgs.
Why StackAlert

AWS cost control in your Telegram.

Per-service spike alerts — know exactly what's causing it.

The moment any AWS service exceeds its 7-day average, you get an alert — with exactly which service spiked, by how much, and its dollar amount. EC2, Bedrock, RDS, Lambda, Data Transfer — each monitored independently. Not just "your total bill went up."

Daily digest.

Every morning: yesterday's spend by service, vs. last week. 30 seconds to read, zero dashboards to open.

Your team's channel. Your choice.

Configure one or more delivery channels per account. Solo devs use Telegram; teams use Slack; ops engineers route into PagerDuty. Mix and match.

Slack
Incoming webhook — rich Block Kit cards with service details and a direct link to Cost Explorer.
Telegram
Bot push notification — instant delivery, no email, works on every device.
PagerDuty
Events API v2 — creates an incident with severity (warning/critical), on-call routing, and dedup.
# Lambda env vars
NOTIFICATION_CHANNELS="slack,telegram"
SLACK_WEBHOOK_URL="https://hooks.slack.com/…"
TELEGRAM_BOT_TOKEN="7123…"
TELEGRAM_CHAT_ID="281316…"
# Add pagerduty for on-call routing:
PAGERDUTY_ROUTING_KEY="abc123…"
→ alerts fan out to all listed channels

Read-only, open-source & EU-hosted.

One CloudFormation click creates a read-only IAM role — it can only read Cost Explorer data, never modify anything. The Lambda is open-source on GitHub. All data stays in AWS Frankfurt (eu-central-1) — GDPR compliant, no US data transfer.

View source on GitHub →
📊 Per-service breakdown — Mon 23 Mar
Amazon Bedrock $8.20 ↑ +847%
Amazon EC2 $18.50 ↑ +54%
Amazon S3 $0.42 stable
AWS Lambda $0.01 stable
Total $27.13
Setup

Up and running in 60 seconds.

No YAML. No dashboards. No agents to install.

1

Connect your AWS account

Click the CloudFormation link. A read-only IAM role is created in your account in under 30 seconds. No credentials to manage — just an ARN to paste.

aws cloudformation deploy --template-url stackalert-role.yaml
2

Connect your Telegram bot

Start the StackAlert Telegram bot and paste your chat ID. Takes 30 seconds. Done — no app installation required.

3

Get alerted when it matters

Every 6 hours, StackAlert checks your spend against your baseline. If anything spikes, you get a Telegram message — with context, not just a number.

Pricing

Less than a Spotify subscription.

One caught spike pays for 7 years of StackAlert. Early access: 50% off forever.

Alle Preise inkl. MwSt. · All prices include VAT

Solo
1 AWS account, 1 user
Less than 1 coffee/month
€9 €4 /month
Early access price
  • 1 AWS account
  • Slack or Telegram alerts
  • Per-service spike alerts
  • Daily digest
  • 6-hour check interval
Join waitlist
Most popular
Team
3 AWS accounts, 5 users
Cheaper than 30 min of debugging
€29 €14 /month
Early access price
  • 3 AWS accounts
  • Slack + Telegram (both channels)
  • Per-tag & per-service alerts
  • 1-hour check interval
  • Monthly report PDF
Join waitlist
Studio
10 accounts, unlimited users
For agencies & on-call teams
€79 €39 /month
Early access price
  • 10 AWS accounts
  • Slack + Telegram + PagerDuty
  • Custom alert thresholds
  • 15-min check interval
  • Priority support (DE/EN)
Join waitlist
Early access

Be the first to know when we launch.

Join the waitlist and get 50% off forever as a founding member. Targeting Q2 2026.

Or email: hello@stackalert.app

No spam No credit card Unsubscribe anytime
FAQ

Frequently asked questions.

Is it safe to give StackAlert access to my AWS account?
Yes. StackAlert uses a read-only IAM role — it can only read Cost Explorer data, never make changes. The exact Lambda function is open-source on GitHub. We follow least privilege: the role is scoped to only the Cost Explorer API calls we need.
Does it tell me which AWS service caused the spike?
Yes — that's the whole point. StackAlert monitors each AWS service independently (EC2, Bedrock, S3, RDS, Lambda, etc.). When Bedrock spikes 400% but EC2 is stable, you see exactly that — not just "total bill went up 12%." This is what AWS Budgets and Cost Anomaly Detection don't give you at a glance.
I already have AWS Budgets set up. Why do I need this?
AWS Budgets sends emails when you cross a monthly threshold — that's too late. StackAlert checks every 6 hours, detects unusual patterns early, and delivers context (which service, which region, what changed) directly in Telegram — instant push, not buried in email.
Is my billing data stored in the EU? (GDPR)
Yes. All data is processed and stored in AWS Frankfurt (eu-central-1). We are GDPR compliant and do not transfer data outside the EU. A Data Processing Agreement (DPA / AVV) is available on request.

The average surprise AWS bill is $340.
StackAlert is €4/month.

The math is obvious. One alert caught pays for 7 years.

Join the waitlist — 50% off forever as a founding member. No credit card. No spam.

Get early access — free See the source code
Get early access — free