Interbox FAQs

What is Interbox?

Software that lets a bank's customers buy a US dollar stablecoin with Zelle^®. The customer pays from their own bank account, and the coin arrives in a crypto wallet they control. It is built for a bank to run.

Can I buy a stablecoin here?

No. inter.box is a demonstration run by Inter Dot Box LLC. It is not a service and sells nothing. Only Base Sepolia, a test network, pays out, in test USDC with no value.

Should I send money to try it?

Only if Inter Dot Box has invited you to test it. There is no automated refund: each test payment is returned by hand.

I sent money without an invitation. What now?

Write to main@inter.box with the date, the amount and the name the payment came from. It will be returned by hand.

What is a Box Code?

A short code computed from a message your wallet signs. The message names your wallet address, the network, the coin, the fee, the address of the terms and the time. You put the code in the Zelle memo, and the coin is delivered only to the wallet that signed.

Why must I never pay a code someone else gave me?

A code delivers to the wallet that created it. Paying someone else's code sends your money to their wallet. Nobody legitimate will ask you to pay their code.

Who would run it?

A bank. The bank receives the payment, sells the coin, delivers it and keeps the records. Inter Dot Box LLC licenses the software and US Patent 12,737,752 to that bank, and does not receive, hold or transmit the money. More on the About page.

Which networks work?

The page lists Arbitrum, Avalanche C-Chain, Base, Base Sepolia, Optimism and Polygon to show what Interbox supports. Only Base Sepolia delivers today.

What does it cost?

The fee is shown on the page before you create a code, and it is part of the message your wallet signs. The code carries the fee it was created with.

What do I need?

A crypto wallet in your browser, to create a code. Without one, the page cannot make a code.

Who can use it?

Under the terms: someone 18 or older who lives in the United States and pays from their own account at a US financial institution.

What do you collect?

See Privacy.