Documentation
How all of this works
banker.tools can buy a branch for you while you're asleep. That should make you suspicious. The usual way to arrange something like that is to hand over your private key, and anyone who asks for yours is robbing you.
These pages are meant to be read before you sign anything. They cover what you're signing, which contracts enforce it, what happens in every case we know of, and what we can and can't do with it. Where something depends on someone else's work — MetaMask's contracts, an Ethereum standard — we link to it instead of asking you to take our word.
The short version
- Your private key never goes anywhere. Your wallet signs, and nothing leaves it.
- You sign a permission for one call, to one contract, at a price you set, before a date you set, once.
- MetaMask’s contracts hold the permission and enforce it, not us. We can’t widen it.
- You can cancel it, and it expires on its own whether anyone is watching or not.
- You only pay the fee if the order actually buys a branch.
The pages
- How branch limit orders work
What an order can do, everything it cannot, what it costs, whether we can change or cancel it, and how to check any of it yourself.
- What is a smart account
What switching does to your account, what it does not do to your Charter, how to check whether you have already been switched, and how to switch back.
- Security
What we can and cannot do with an order, what is audited and what is not, and how to check the claims yourself.
- Contracts
Every contract involved, what each one does, and where to read it.