YOU STAY THE BOSS
Autonomy you can trust.
SynthOS runs natively on your Mac. Bring your own AI key and your prompts go straight to your provider — we never see them. Every tier ships the same guardrails: destructive and outward-facing steps hold for your yes, what ran is written to a local run log that never leaves your machine, and your credentials stay in your Mac's keychain. The guardrails are never the upsell — autonomy you'd actually delegate to starts with autonomy you can audit.
SEE IT WORK
It stops and asks
When a step is destructive or leaves your Mac, the agent holds and asks you in plain language before it goes. You answer in the window; nothing moves until you do.
Every step on the record
A local run log — what ran, when, and how long. Look back at any run, any time. It stays on your Mac; it never syncs.
Your keys, your bill, your Mac
Bring your own AI key and that bill stays between you and your provider. Your keys never sync — they sit in your Mac's keychain.
It runs where your data already is
Native on your Mac. The vault, the run log, and your keys stay on disk — cancel and they're still yours.
AT A GLANCE
The facts, in one place.
| Approvals | Destructive and outward-facing steps hold for your yes |
|---|---|
| Receipts | A local run log · stays on your Mac, never syncs |
| Keys | Bring your own provider key — you pay your provider directly |
| Stop | Stop any run the moment you want it stopped |
| Disclosure | [email protected] · /.well-known/security.txt |
Best for anyone who wants the leverage without handing over the wheel.
QUESTIONS, ANSWERED
Which guardrails cost extra?
None. The check-in before anything you'd regret and the local run log ship in every tier — the guardrails are never the upsell.
Where do my credentials live?
On your Mac, and nowhere else. Credentials are the one thing that never syncs — they sit in your Mac's keychain, not in the vault and not on our servers. Your vault can sync through your private cloud if you turn that on, account-bound and encrypted in transit, and you can turn it back off whenever you want.
SEE IT YOURSELF
Stop reading. Drive it.
Take the interactive tour in your browser — then get the real thing on your Mac.
From $19/mo · Bring your own key · Private cloud sync · Cancel anytime.