The hosted instance at atlas.krenniq.com is free to use, and the engine is open source under Apache-2.0, so you can run it on your own hardware with no limits at all. There is no free period that ends, no pilot programme to apply to, and nothing held back to sell later.
What "free" means here
Hosted instance — the full triage: verdict, route adjudication, certificate, evidence ledger, exports. Per-IP rate limits keep one client from crowding out the rest: at least 24 and never more than 120 API requests per minute, and at least 4 and never more than 20 chat messages per day. The range is not vagueness: the counter lives in each server process and the service runs 1–5 of them, so the ceiling is the number we promise and the floor is what one process alone allows. We stated only the ceiling until 2026-09-07, when an auditor measured 360 req/min with zero 429s and was right. No account, no email, nothing stored after the response (security · legal).
Your own machine — the same code, unlimited and offline: atlas-engine on GitHub. What the hosted instance refuses for size, the local engine runs.
The evidence — the certified corpus, the calibration, the hardware measurements and every number on this site are published, with the scripts that recompute them (benchmark · evidence).
What "free" does not mean
No SLA and no support commitment. The hosted instance is one small container. If it is down or slow, run the engine locally — it is the same thing.
The chat is a courtesy. It spends our API credit, so it is capped per IP; the triage itself never depends on it.
No warranty beyond what Apache-2.0 §7 says. A verdict is a measured claim with its evidence attached, not a guarantee about your hardware bill.
Want to run it on your circuits together?
There is no programme to join. If you want to compare notes on a circuit — a verdict you disagree with, a family Atlas has not seen — open an issue with the QASM or its hash. The disagreements are what the corpus grows from.
Why: good triage should not sit behind a paywall, and the wrong QPU run costs more than any licence we could charge. This page replaced (2026-09-05) an earlier one that announced a free period followed by tiers and a pilot programme; neither exists.