[ DEMAND-DRIVEN OBSERVABILITY ]

Observability, the lean way. Lean, the right foundation for AI.

No more storing everything and pruning after the bill. Declare a need, and only the telemetry that serves it is ever collected.

Start for free

Free tier — no credit card, no time limit.

Cost-over-time chart comparing traditional observability with LeanSignal. The traditional line collects everything up front and spikes, triggering a surprise bill and reactive pruning. The LeanSignal line starts near zero and rises gently with demand-driven growth, falling again when demand drops.

Illustrates how cost develops at scale, for usage beyond the Free Tier

Why LeanSignal

Demand drives the pipeline

Demand governs the pipeline

You declare the signals you need. Demand — not supply — decides what gets collected, so noise is eliminated from day one instead of pruned after the bill.

A cost–value link, always in sync

Every signal is tied to the need it serves. You can finally see which spend buys which value — and cut the noise with confidence.

Filtered at the source

Telemetry is indexed and filtered at the edge, before it ever reaches storage — no more choosing between storing everything and whitelisting blindly.

From the PAIN cycle to the VALUE cycle

Escape the store-everything, bill-shock, reactive-pruning loop. Start at zero and grow cost and value together as your needs change.

How it works

Three steps to a leaner signal

  1. 1

    Declare your demand

    List the metrics, alerts, and dashboards your teams actually depend on. Demand becomes your single source of truth.

  2. 2

    Collect only that

    The edge agent indexes telemetry at the source and forwards only signals that serve a declared demand. Everything else is dropped before you pay for it.

  3. 3

    Watch cost meet value

    Every signal is tied to the need it serves, so cost and value move together. New cost only ever comes from new need.

The product

See LeanSignal in action

Each dashboard shows the cost of the metrics it demands — no noise to wade through, and nothing wasteful to pay for. Costs apply only once you grow beyond the Free Tier.

LeanSignal dashboard showing demand-driven metrics

Example pricing shown is for demonstration purposes only.

Built on open standards
OpenTelemetry logo OpenTelemetry Prometheus logo Prometheus Perses logo Perses

Security & privacy

Open source, and EU-compliant by design

Open-source agent

The LeanSignal agent is built on the OpenTelemetry Collector — open-source software you can read, audit, and run yourself. No proprietary black box and no hidden data paths.

Processed under EU rules

Your telemetry is processed and stored within the European Union, in line with the GDPR and EU data-protection rules — your data stays under European jurisdiction.

Pricing

Start on the Free Tier

Generous limits, no credit card. You only pay if you choose to grow beyond it.

Free $0/mo
  • 50 GB/dayingestion
  • 50 GBstorage
  • 30 daysretention
  • 20 usersincluded
Start for free

We warn you at 85%. Reach a limit and ingestion simply pauses — no overage, no surprise bill.

Outgrowing the free tier? Get in touch and we’ll set you up with a plan that fits.

Ready to run lean observability?

Sign up, install our OpenTelemetry-based LeanSignal agent, and start collecting the telemetry that actually matters.

Start for free

Free tier — no credit card, no time limit.