Zimac.AI builds three things that work as one: Zimac, an AI chief of staff for engineering managers on macOS; Mnema, a formally verified memory engine every agent on your Mac can share; and the Zimac Proxy, a metered model gateway with budgets enforced on every call.
Each stands alone. Together they form a complete stack: an app you own, a memory you keep, and inference you can meter.
Talk to one chief of staff. Sage triages every message, summons only the specialists it needs, and answers in a single voice — sharing one memory, one roster of your people, and your writing voice.
A formally verified local memory store every LLM and agent on your Mac can share — with the Pensieve, a living map of your memory you can watch think. The engine that powers Zimac, free and standalone.
An Anthropic-compatible gateway that swaps the real provider credential in server-side, per request. Every token resolves to an org and a seat; budgets, rate limits and usage are enforced on every call.
The app and the memory live on your machine; only model calls cross the wire — direct to your provider, or through the proxy with a budget attached.
Zimac runs natively and remembers through Mnema — people, decisions, and context in a verified store on disk. Secrets stay in the macOS Keychain; the local API binds to 127.0.0.1 only.
Zimac appMnema storeKeychain
The app speaks the Anthropic Messages API to proxy.zimac.ai with a per-seat token. The real provider key is swapped in server-side, per request — nothing usable ever sits on the laptop.
zmc-… seat tokenorg pools/v1/budget
Owners top up prepaid credits or subscribe per seat through Stripe. Payment and spend key the same ledger row, so what finance sees and what the proxy enforces cannot drift apart.
Stripe checkoutprepaid creditsper-seat plans
Your memory, notes, and people never leave your machine. There is no account requirement, no telemetry harvest, and no server-side copy of your data — the only thing that crosses the wire is the model call itself.
Mnema's engram store ships with a formal verification contract: property tests, a conformance model checker, Kani proofs, and a TLA⁺ model check gate every change in CI. Memory is the foundation — it is held to a higher bar.
Every proxy call debits an org and a seat against a budget you set — enforced at request time, visible live. Payments run on Stripe; card details never touch Zimac.AI servers, and prepaid means no surprise bill.
The verified memory engine, the Pensieve, the HTTP + MCP APIs. No account, no limits, no strings.
Download MnemaFree for 30 days, then a single payment unlocks Zimac forever. The app itself — separate from any model usage.
Buy a licensePrepaid credits or per-seat plans. A $20 top-up lands as $20 of org budget, metered on every call.
Create an accountNo. The Zimac app is a one-time $49 license per computer, after a 30-day free trial. Model usage is separate: bring your own API key, or buy prepaid proxy credits that land as org budget.
On your Mac. Zimac and Mnema are local-first: memory, notes, and people live on your machine, secrets sit in the macOS Keychain, and there is no server-side copy of your data. Only model calls leave the device — direct to your provider or through the Zimac proxy.
Not to use Zimac or Mnema — bring your own model key and nothing else is required. A free Zimac account adds the proxy: per-seat tokens, org budgets, team invites, and billing from one page.
Mnema is a free, formally verified memory engine that runs on your Mac. Every LLM and agent you use can share it over an HTTP API or the Model Context Protocol, and its Pensieve window shows a living map of your memory. It is the same engine that powers Zimac.
Prepaid and enforced. Pay $20 through Stripe and it lands as $20 of proxy budget across your org, debited on every call per seat and per org pool — no surprise bill, and no card details on Zimac.AI servers.
Download Zimac, try it free for 30 days with your own key — and when your team is ready, one account adds shared budgets, seats, and billing.
Get Zimac for Mac