New Real-time anomaly detection with AI →

Find the signal through
the noise — before it's too late

Full-stack observability that thinks ahead. Spot failures before they cascade — and act in milliseconds.

0
Uptime SLA
0ms
P99 Latency
0B+
Events / day
0K+
Engineers trust us
Trusted by engineering teams at
Vercel Stripe Linear Notion Figma Planetscale Supabase Railway Fly.io Turso Neon Render Vercel Stripe Linear Notion Figma Planetscale Supabase Railway Fly.io Turso Neon Render
Capabilities

Everything your stack
tries to tell you

One unified view of metrics, logs, traces, and events — correlated automatically so you never miss the signal in the noise.

847K evt/s
Real-Time Signal Streaming
Ingest millions of events per second from any source — Kafka, Kinesis, HTTP, or our native SDKs. Zero-copy ingestion with sub-millisecond acknowledgement.
$ signalis ingest --stream production
✓ Connected to stream [production] · 847K events/s
✓ Anomaly model loaded · p99 latency: 2.1ms
⚡ Alert: CPU spike detected in api-gateway [3σ]
→ Root cause: upstream db connection pool exhausted
3 anomalies
AI Anomaly Detection
Adaptive ML models learn your baseline. Detect multi-variate anomalies across 1,000s of metrics with near-zero false positives.
error-rate · payment-svc
4.8σ
cpu-usage · api-gateway
3.2σ
mem-alloc · worker-pool
2.7σ
latency · db-replica
resolved
throughput · ingest-pipe
resolved
Model confidence 97.3%
5 spans
Distributed Tracing
End-to-end trace visualization across microservices. Pinpoint latency bottlenecks with flame graphs and critical path analysis.
api-gw
142ms
auth
23ms
db-read
67ms
cache
4ms
render
38ms
Alert in ~18m
Predictive Alerting
Get notified before thresholds breach. Forecasting models predict issues 15–30 minutes ahead using historical signal patterns.
THRESHOLD
-30m breach ~18m +30m
240+ Native Integrations
Connect in minutes with Kubernetes, Prometheus, Grafana, PagerDuty, Slack, AWS, GCP, and every tool in your stack. No vendor lock-in.
How it works

From signal to
resolution in seconds

Kalleo collapses the gap between detection and action. Our engine correlates, ranks, and routes every alert to the right team automatically.

01
Ingest everything
Send metrics, logs, and traces via our SDKs, OpenTelemetry, or any open standard. No agents required.
OpenTelemetry native
02
Correlate automatically
Our engine maps signals to services, deploys, and commits — surfacing root cause instantly.
ML-powered
03
Alert intelligently
AI-deduped alerts routed to the right on-call engineer with full context — no noise, no alert fatigue.
Zero false positives
04
Resolve & learn
Incident timelines auto-generate postmortems. Your system gets smarter with every resolution.
Auto-postmortem
signalis · production
LIVE
2.1ms
P99 Latency
99.98%
Uptime
0
Open P1s
Request rate · 24h
Recent signals
api-gateway · latency normalized 2m ago
db-replica · connection pool at 82% 8m ago
worker-queue · throughput +340% 14m ago
0B+
Events processed daily
across all customer workloads
+12% MoM
0ms
Median detection time
from event to alert
-34% faster
0.99%
Platform availability
12-month rolling average
99.99% last 30d
0K+
Engineers on platform
at 2,400+ companies
+280 this week
Pricing

Transparent, usage-based pricing

No surprises. Pay for what you use. Scale from startup to enterprise on the same platform.

Monthly
Annual Save 20%
Starter
For indie engineers and small projects just getting started.
$0 / month
10B events / month
3 services
7-day data retention
AI anomaly detection
SLA guarantees
Most Popular
Pro
For growing teams who need AI-powered observability at scale.
$89 / seat / mo
Unlimited events
Unlimited services
90-day retention
AI anomaly detection
Predictive alerts
99.99% SLA
Enterprise
Custom infrastructure, dedicated support, and compliance.
Custom
Everything in Pro
Dedicated infra
SOC2 / HIPAA
24/7 dedicated support
Custom SLA
What teams say

Trusted by on-call engineers
at 2,400+ companies

★★★★★
Kalleo cut our MTTR from 45 minutes to under 3. The AI root-cause analysis is genuinely magic — it spots patterns we'd never connect manually.
Sarah L.
Sarah L.
Staff SRE · Stripe
★★★★★
We migrated from Datadog in a weekend. Same coverage, 60% less cost, and the UX is miles ahead. Our on-call rotation actually enjoys using it now.
Marcus R.
Marcus R.
Platform Eng · Linear
★★★★★
The predictive alerts gave us a 20-minute heads-up before our biggest outage of the year. We fixed it silently. Customers never noticed.
Anika K.
Anika K.
VP Eng · Notion
★★★★★
I've evaluated every observability tool. Kalleo is the first one that feels like it was built by engineers who actually do on-call. The signal-to-noise ratio is unmatched.
James P.
James P.
Founding Eng · Vercel
★★★★★
OpenTelemetry support is first-class. We send data from 200+ microservices and the correlation engine just works. No config, no fiddling.
Tariq N.
Tariq N.
Infrastructure Lead · Railway
★★★★★
Kalleo cut our MTTR from 45 minutes to under 3. The AI root-cause analysis is genuinely magic — it spots patterns we'd never connect manually.
Sarah L.
Sarah L.
Staff SRE · Stripe
★★★★★
We migrated from Datadog in a weekend. Same coverage, 60% less cost, and the UX is miles ahead. Our on-call rotation actually enjoys using it now.
Marcus R.
Marcus R.
Platform Eng · Linear
★★★★★
The predictive alerts gave us a 20-minute heads-up before our biggest outage of the year. We fixed it silently. Customers never noticed.
Anika K.
Anika K.
VP Eng · Notion
★★★★★
I've evaluated every observability tool. Kalleo is the first one that feels like it was built by engineers who actually do on-call. The signal-to-noise ratio is unmatched.
James P.
James P.
Founding Eng · Vercel
★★★★★
OpenTelemetry support is first-class. We send data from 200+ microservices and the correlation engine just works. No config, no fiddling.
Tariq N.
Tariq N.
Infrastructure Lead · Railway

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Start listening.

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