Terms

You hold it.

These terms cover Byfiat as it runs on your computer. Updated 26 October 2026. Using the wallet means you agree.

The key is yours

Byfiat is self-custody. The private key lives on this computer, and it spends from that key. New accounts also come with recovery words. The same words can open more keys. Write the words and each key down. Hide the paper. If you lose them, the USDC stays where it is. We can’t restore it, reset it, or move it for you.

Anyone who can read the words or the key can move the money. Don’t send either one in a chat, a screenshot, or a note someone else can open.

Practice and Live

Practice fills an account with practice money, then turns USDC on. Live opens a real account and starts it with the small network balance a new account needs, then turns USDC on. If Live isn’t set up to fund that start, we stop. Nothing is created.

Practice money is not real money. Live money is.

The fee

Every USDC send adds 0.05 USDC. You see it before you confirm. It’s ours, and it’s labeled. One send can pay more than one person. Each person adds another 0.05.

Holding USDC

The card shows your USDC. Byfiat does not pay you interest for holding it. What you earn, if anything, comes from what you do with the dollars, not from us.

Deposit and withdraw

Deposit and withdraw open Fonbnk. Their checkout, their checks, their rules. We pass the amount, the country, and, for a deposit, this wallet’s address. We don’t hold the local money, and we don’t promise a rate.

Sends

You confirm each send. After it leaves, it can’t be pulled back. A pay link is a request, not a payment, until someone sends it.

What this isn’t

Byfiat is not a bank. Balances aren’t insured. We’re not your lawyer, and this page isn’t legal advice for where you live. If a law says you can’t use the wallet, don’t.