Terms of use
The conditions under which this Crossbook prototype is made available.
Written for a prototype. It is a plain description of how this build behaves, not a lawyer-drafted agreement, and it makes no jurisdiction-specific claims. This page reflects the build published in August 2026.
What this is
Crossbook is an interface prototype for an onchain order-book exchange. It runs entirely in your browser. Market data, order matching, balances and history are produced by a deterministic simulation. No exchange contracts are deployed, no transaction is signed and no asset changes hands.
It is provided for demonstration and evaluation. It is not a broker, dealer, exchange, trading venue, custodian or investment adviser, and using it does not create an account or a relationship of any of those kinds.
No advice or offer
Nothing on this site is financial, investment, legal or tax advice, and nothing here is an offer or solicitation to buy or sell any security or asset. Ticker symbols and company names are used to identify simulated markets. They do not imply any relationship with, or endorsement by, the companies named.
Simulated behaviour
Prices, depth, prints, fills and profit and loss shown here are generated locally. They are not quotes, not executions, and not a record of anything that happened on a market. Do not rely on them for any decision about a real asset. See Market data and Status.
Acceptable use
Use the interface as it is intended: exploring the product. Do not present its output as real market data, do not use it to imply that a deployed exchange exists, and do not attempt to use it to interact with contracts that are not configured.
Availability and changes
The prototype may change, break or disappear without notice. Simulated state lives in your browser and can be cleared by you, by your browser, or by a change to the storage format in a future build.
No warranty, no liability
The software is provided as is, without warranties of any kind, express or implied, including fitness for a particular purpose. To the maximum extent permitted by applicable law, the authors are not liable for any loss or damage arising from use of the interface or reliance on anything it displays.
If real contracts are ever enabled
Should a future build connect to deployed contracts, additional and clearly stated terms would apply, and blockchain transactions would become irreversible once submitted. Until then, no such capability exists in this build. The risk notes explain what that would mean in practice.
Independence
Crossbook is an independent project. It is not affiliated with, endorsed by or operated by Robinhood. The network name is used only to identify the chain this design targets.