Tokenize USB via API
U.S. Bancorp as a 1:1-backed onchain ERC-20. Mint, redeem, and post as collateral with one SDK call. Mint and redeem are asynchronous via an on-chain order_id; the terminal action lands via settle(order_id) on the custodian cycle (T+1).
What Flo supports for USB
Three primitives, one API key. USBflows through the same path as the rest of Flo's tokenized equities universe.
Mint USB →
Create tokenized USB from stablecoin payment. Onchain delivery is instant; the broker buys the underlying U.S. Bancorp share at NYSE during market hours.
Redeem USB →
Burn tokenized USB and receive stablecoin. Flo Finance sells the underlying U.S. Bancorp share at the institutional custodian; your user gets stablecoin instantly.
Borrow against USB →
Post tokenized USB as collateral and borrow USDC/USDT up to 70% LTV. Liquidations route through the same custody pipe.
Mint tokenized USB in one call
The same shape works for every ticker in the universe, swap the symbol and you're done.
// Mint tokenized USB (U.S. Bancorp) — notional-in default
const mint = await flo.mint({
asset: "USB",
notional_usdc: "1000.00", // pay-in. SDK derives min_quantity from quote * (1 + slippage_bps).
slippage_bps: 50, // 0.50%. Default if omitted.
settlement: {
currency: "USDC", // per-chain accepted set in /v1/chains
chain: 8453, // Base. EIP-155 integer chain ID.
wallet: userWalletAddress,
},
gas: { sponsor: "developer" },
});
// mint.status is "active" with mint.order_id set on chain (or "queued" out-of-session).
// USB ERC-20 tokens land via settle(order_id) once the custodian leg confirms.
// Flo Finance holds the underlying U.S. Bancorp shares at an institutional custodian, 1:1.Comparable assets via Flo
Other financials and NYSE names supported by the same API.
USB on Flo, common questions
Can I tokenize USB via Flo?
Yes. USB (U.S. Bancorp) is part of Flo's tokenized equities universe. A POST to /v1/mint with asset=USB and a notional_usdc amount returns a tokenized USB ERC-20 1:1 backed by U.S. Bancorp shares held at an institutional custodian by Flo Finance.
How is tokenized USB backed?
Each onchain USB token is 1:1 backed by a real U.S. Bancorp share held at institutional custodians by Flo Finance. Reserves are attested daily and published on /transparency/proof-of-reserves.
What is the settlement window for USB?
Mint and redeem are asynchronous via an on-chain order_id. The create-order tx is atomic; the terminal action (live token mint or stablecoin payout) lands via settle(order_id) on the custodian cycle. NYSE settles T+1 in USD, so the custodian leg for USB clears on that cycle.
Can I borrow stablecoins against USB?
Yes. Tokenized USB is collateral-eligible in the Flo borrow product as a large-cap equity, with a three-margin model — initial 70% (max LTV at open), maintenance 75% (alerts begin via borrow.maintenance_breach), liquidation 78% (keepers auto-close on a 30-second TWAP, no grace window). APR is a floating rate set by the pool's utilization curve (kinks at 75% and 90%). See /docs#borrow-overview for the full state machine.
Which chains is USB deployed on?
Tokenized USB is deployable on Base, Arbitrum, Ethereum. Pass the EIP-155 integer chain ID on the settlement object (8453 for Base, 42161 for Arbitrum, 1 for Ethereum). String slugs are not accepted on input; see /docs#rest-chains.
Ship tokenized USB to your users
Mint, redeem, sandbox, and webhooks are free. No setup fee, no monthly minimum, no annual contract. Get an API key and mint your first tokenized USB in minutes.