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The local product is not metered. The brain, the agent, corpus indexing, the on-device model, and the macOS app are the full product on every tier, including Free. What you pay for is Xynthis Cloud.

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Free vs Pro

Two limits that used to sit on Free are gone:
  • Recall was capped to the last 7 days. Every tier now recalls your full history, back to day one.
  • Multi-agent execution was reserved for Pro and Team. It is free on every tier. The agent can fan work out to subagents, in parallel, regardless of licence.
If you read either limit in an older version of this page, it no longer applies.
Fleet — the shared team brain, with a roster across machines — has not shipped. The screen in the app is a preview with sample data. What is free today is multi-agent execution on your own machine, which is a different thing and does work.
A Team tier exists for seat-managed licenses; the product limits match Pro.
Tier is reported to the local daemon by the app, and a local request could always set that field itself, so it was never a real lock. Nothing local depends on it. Paid capability lives in Xynthis Cloud and is enforced server-side, where it can’t be spoofed.

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Buying a license

Licenses are sold at xynthis.com. Payment is USDC on the Base network: self-custody, paid straight from your own wallet. You don’t need an account before buying: checkout takes an email address, and the license key is delivered to it after the payment confirms.

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Activating

In the app, open Settings → License and paste the key. The app verifies it locally (the key is a signed token checked against a bundled public key, so activation itself needs no network round-trip) and Pro features unlock immediately. A periodic heartbeat to the license server keeps the key current; a machine that goes offline keeps working within a 30-day grace window.

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Expiry and renewal

When a license expires, Xynthis degrades softly to Free. Nothing is deleted and nothing local stops working: your memory, sessions, and trained models stay exactly where they are, and recall stays unlimited. What you lose is Xynthis Cloud until you renew. The app keeps the expired license on record so it can show which plan lapsed and when, and prompts you to renew; signing out dismisses the prompt. Uninstalling behaves the same way: removing the binaries preserves ~/.xynthis/bmc/. Your data is only gone if you delete ~/.xynthis yourself.

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How enforcement works

Nothing local is gated. The app still passes your tier to the local daemon on each request, but the daemon no longer acts on it: recall is uncapped and multi-agent execution runs on every tier. The field is kept only so older and newer clients stay compatible. It was never a real lock anyway — a local request could always set it itself. Enforcement lives where it can’t be spoofed: Xynthis Cloud. The web chat relay connects only with a valid, unexpired Pro key, verified server-side. The CLI takes no license key at all, so a terminal-only installation runs without one.