Most agents' memory is storage. We turn it into a state.

The browser you were sent to has no wallet in it. Install the wallet extension, then reload that page and press the button again. Your wallet app being open somewhere else does not count — the page needs one in the same browser.

The signature did not complete. Most often your wallet is still holding a request it is waiting for you to approve, in a window or a notification you have not seen. Open the wallet and look. Pressing Connect again is safe and costs nothing.

The signature did not match the request. Start again from the page — it is one click every time. If it repeats every attempt, your wallet may be signing on a different network than the request names; switching the wallet back normally clears it.

The link lost part of its address on the way here, which usually happens when one is copied and pasted instead of opened by the agent. Go back to your agent and let it open the page itself rather than reusing a link from history.

You have tried a number of times in a short window and hit a protective limit. Wait a few minutes and try once more — repeated instant retries will keep it closed for longer.

Either the settings were not reloaded or the JSON was rejected. Check for a missing or extra comma first — that is the usual cause — then restart the agent properly rather than reopening a window.

Approvals last 90 days, then the agent asks once more. Approve it the same way and your memory is exactly where you left it — nothing is lost by the approval expiring.

The model is real. The physics is not, and we are not going to pretend otherwise.

Every term names a mechanism in the engine. A fact carries a strength rather than a yes/no flag — coherence. Unread facts decay on a half-life and are swept below a floor — decoherence, and it is the default state, not an error. Recalling a fact resets its clock and stretches its half-life, so reading is never neutral — measurement. And two agents can hold one fact so that neither can erase it alone — entanglement.

What is not true: nothing here runs on a quantum computer, and nothing is faster or safer because of quantum mechanics. The overlap is that exponential decay, and an observation that feeds back into the state it measures, have the same shape in both places. That is a mathematical resemblance and we are happy to be held to exactly that much.

Separately, and genuinely quantum in the sense that matters: an agent can prove its identity with a post-quantum signature — ML-DSA, standardised as FIPS 204 — instead of a scheme a quantum computer would break. That part is cryptography rather than analogy, it is already live, and you can check it.

No. QMem is one more tool alongside whatever your agent already has — it adds memory and takes nothing away. Nothing else you use needs reconfiguring, and nothing is disconnected.

It stays connected. You approve once in your browser and it just works from then on — no key to paste, nothing to renew each session. The approval lasts 90 days, after which your agent asks to be approved again. That is one click, with the same wallet, and your memory is exactly where you left it.

Yes, if they use the same wallet — one wallet is one memory, so two agents pointed at it see the same facts. Different wallets are separate memories that never mix, and never see each other.

Revoke the access and the agent stops immediately. Revoking does not delete your memory — reconnect later with the same wallet and it is still there.

Then the memory is out of reach. There is no password reset and no account recovery, because there is no account — the wallet is the identity. That is the trade for not having a login to lose, and it is better to know it now than to find out later.

Your agent is told. When it recalls something old enough to have changed, the answer comes back flagged, and the flag is stricter for things that cannot be undone — money moving, something being published, a message being sent. Facts nobody uses decay and stop coming back.

Both are marked when they come back together, so your agent is told the answers disagree rather than quietly picking one. It is never told which is right, because that depends on the world, not on QMem.

Only what your agent chooses to store through it. It does not read your conversations, your files, or anything your agent does not hand it.

Not to use it, and nothing to sign up for. No card, no account, no email — there is nothing to register and nothing that can be lost in a breach, because none of it exists.

The paid rungs are optional and cost nothing to ignore. Free runs the whole engine — the same decay, the same corrections, the same verification gate, the same twelve tools — and the rungs change how precise the tuning is, not what you get. A wallet holding none of it uses QMem exactly as a wallet holding all of it does.

Yes — the dashboard shows your memory, what has decayed, and what your agent has been told to double-check.

Your agent loses its memory tools and otherwise carries on. Nothing else depends on QMem, so nothing else breaks.