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BlastBridge

Blast native stablecoin

USDB: the stablecoin that earns

USDB is the auto-rebasing stablecoin of the Blast network. Hold it in your wallet and your balance grows with yield from on-chain T-Bills.

What is USDB

USDB is a dollar-pegged stablecoin native to Blast. Unlike regular stablecoins, it is auto rebasing: the number of tokens in your wallet increases over time as yield is distributed.

How to get USDB

Bridge supported stablecoins from Ethereum through the official Blast bridge and you receive USDB on the L2. You can also swap into USDB on decentralized exchanges on Blast.

New to bridging? Follow the step-by-step Blast bridge guide.

Where the yield comes from

Stablecoins deposited through the bridge are put to work in MakerDAO’s on-chain T-Bill protocol. The yield, around 5% and variable, is passed to USDB holders through rebasing. In the future the Blast community can add or replace yield sources.

USDB in smart contracts

USDB rebases automatically for wallets and for smart contracts. Contracts that need a fixed balance, such as AMM pools with strict accounting, can switch their yield mode to void or claimable.

Token standard
ERC-20 with rebasing extension
Network
Blast L2
Contract
0x4300000000000000000000000000000000000003

Verify before you trade

Always confirm token contract addresses in the official Blast documentation or a block explorer before swapping.

USDB vs regular stablecoins

USDBStablecoin on L2
Yield in your walletYes, ~5% variableNo, 0%
Action needed to earnNone, auto rebasingDeposit into a protocol
Source of yieldOn-chain T-Billsn/a
Works in dappsYes, ERC-20Yes, ERC-20

Redeeming USDB

When you bridge USDB back to Ethereum through the native bridge, it is redeemed for DAI. Native withdrawals go through the optimistic rollup challenge window, so plan for a delay of several days.

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