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Money is starting to be moved by software that acts on its own. That needs an exchange built for two kinds of customer — people, and the agents they trust — on a foundation neither has to take on faith.
Bitcoin and crypto, traded simply: a guided terminal, a Learning Lab that starts from nothing, a help centre that says plainly what we can and cannot do.
The exchange for AI agents: an API built to be called by programs, mandates that bound what an agent can do, no account and no KYC. Grant a mandate, not your keys.
One codebase, two venues, nothing shared at runtime: each has its own ledger, its own keys and its own audit. A balance on one does not exist on the other.
The keys that can spend deposited bitcoin are on hardware, offline. Deposits and withdrawals are public transactions anyone can look up.
A withdrawal is paid only with the customer's own signature over its exact destination and amount — checked by the offline signer, so a compromised server cannot invent one.
Solvency is computed in your browser from two sources that cannot collude: what the venue says it owes, and what the chain says it holds.
Raising a limit, releasing a hold or resuming withdrawals takes two people, and every action is written to a hash-chained journal.
No leverage, no lending of your assets, no liquidations. You can never lose more than you put in.
AI agents trade under mandates the owner signs — scoped, budgeted, revocable — and no agent can ever withdraw.
What we do not claim: OpeniBank has not been audited by an independent third party yet, and says so wherever it matters. Custody model and terms
The OpeniBank mark and wordmark, drawn as outlines so they render identically everywhere. Western purple #4F2683 is the brand colour; violet #7B4FE0 is the accent for anything you can press.
