CROSSBOOK
Launch App
Reference

FAQ

Short answers about custody, order types, data, fees and what is real.

Short answers. Each one links to the page that explains it properly.

General

Is this real trading?

No. Orders are matched by a local engine against simulated liquidity and stored in your browser. Nothing is signed, nothing settles, and the prices are generated rather than sourced from an exchange. See Status.

What makes this different from a swap interface?

Orders have a price and a size, they rest on a public book, and they match by price then time. You can set the price you are willing to trade at instead of accepting a pool quote. See Order types.

Is this affiliated with Robinhood?

No. Crossbook is an independent project. Robinhood Chain is named only as the network the design targets.

Do I need crypto knowledge to use it?

No. If you have used a broker, the flow is familiar: pick a market, pick market or limit, enter a size, submit, then watch the order. See Getting started.

Markets and orders

What is quoted against what?

Every market is quoted in USDG. A price on NVDA/USDG is USDG per share token. See Markets.

Why did my limit order not fill?

A limit order only trades at its price or better. If the market never reached it, it waits. Check whether it is still in Open orders and where it sits relative to the mid. See Order book.

Why did my order fill at several prices?

It was larger than the size resting at the best price, so it walked to the next level. Each level produces its own fill and the order reports a size-weighted average. See Matching.

Can I cancel a partially filled order?

Yes. Cancelling releases the unfilled collateral and keeps the fills you already have.

Balances and fees

What are fees?

Takers pay 0.10%, makers pay 0.00%. The fee is taken from the asset you receive. See Fees.

Why is part of my balance unavailable?

A resting order has reserved it. It shows as In orders until the order fills or is cancelled. See Portfolio.

Where did my demo balance come from?

It is seeded in this browser the first time the app runs, and kept there afterwards. Portfolio can add to it, withdraw from it, or reset the account.

What happens if I clear my browser storage?

The account returns to its seeded starting state. Nothing else is lost, because nothing is stored anywhere else.

Technical

Are the prices real?

No. They are produced by a deterministic generator so that every panel agrees and a refresh continues the same market. See Market data.

Where is my data stored?

In this browser, under namespaced localStorage keys. There is no server-side account. See Security.

How would real contracts be connected?

By implementing the existing contract adapter and setting addresses in chain configuration. The interface depends only on the adapter interface. See Architecture.

Has anything been audited?

No. There are no deployed contracts to audit, and no audit badge appears anywhere on this site.