What is crvUSD?

crvUSD (Curve.Fi USD Stablecoin) is a dollar-denominated ERC-20 issued through Curve's collateralized lending system. Borrowers deposit supported crypto collateral and draw crvUSD debt; the token is intended to trade near one US dollar through collateralization, LLAMMA rebalancing, PegKeeper operations, interest-rate policy, and market arbitrage. The canonical Ethereum contract is 0xf939E0A03FB07F59A73314E73794Be0E57ac1b4E, with 18 decimals and verified source on Etherscan.

crvUSD should not be confused with CRV, Curve's governance token. A crvUSD balance is a stablecoin balance, not automatic Curve DAO voting power, fee entitlement, ownership of collateral, or a legally documented issuer redemption right.

What problem does crvUSD solve?

Conventional collateralized lending systems can liquidate a position in one discrete transaction when collateral falls below a threshold, creating abrupt slippage and losses for borrowers while liquidators and protocols compete during stressed markets. Curve designed crvUSD around LLAMMA to make the transition more gradual: collateral can be represented in price bands and progressively exchanged into crvUSD as oracle prices decline, with potential de-liquidation if prices recover.

That design does not remove collateral, oracle, liquidity, or smart-contract risk. A rapid move can pass through the bands and result in hard liquidation; if arbitrageurs or liquidity are unavailable, the intended rebalancing and peg mechanisms may work poorly.

How does crvUSD work?

A borrower opens a collateralized debt position and mints crvUSD against an approved collateral asset. LLAMMA places collateral across bands in a purpose-built AMM. As the oracle price moves down through those bands, the position can sell portions of collateral for crvUSD; a recovery can reverse some of that conversion. Severe moves can exhaust the bands and lead to hard liquidation rather than a guaranteed recovery.

The system also includes PegKeeper modules that can mint or burn crvUSD in approved pools to influence the market price, and monetary-policy contracts that adjust borrowing economics. The public ERC-20 ABI exposes mint, burn, burnFrom, and set_minter functions. This means supply and privileged control depend on the designated minter and surrounding Curve contracts; the token balance itself does not grant control. No fixed maximum supply or holder redemption right should be inferred from the stablecoin name. Etherscan reports an 18-decimal token and a max total supply figure of about 2.1048 billion, while the live supply changes with protocol minting and burning; current minter state must be checked on-chain.

Key facts

  • Canonical identity: Curve.Fi USD Stablecoin (crvUSD), Ethereum ERC-20 contract 0xf939E0A03FB07F59A73314E73794Be0E57ac1b4E, with 18 decimals.
  • Curve's crvUSD interface launched publicly on May 17, 2023; the first mainnet contracts were deployed on May 3, 2023, followed by early redeployments and fixes.
  • LLAMMA means Lending-Liquidating AMM Algorithm. It uses collateral price bands for progressive “soft liquidation” and can reverse part of the conversion if collateral prices recover.
  • PegKeepers can mint or burn crvUSD in stabilization pools, so the stablecoin's supply and peg support are not solely a passive collateral vault.
  • The verified token ABI includes mint, burn, burnFrom, and set_minter functions. The active minter address and its surrounding permissions require an on-chain state check.
  • Etherscan reports 18 decimals and a max total supply of 2,104,809,204.981834354272443571 crvUSD; this is not a promise of a fixed circulating supply or a holder redemption price.
  • The 2023 security audit recorded critical and high findings as fixed, while some medium and low findings—including oracle-manipulation and administrative-transfer observations—were acknowledged; an audit is not a guarantee of safety.
  • crvUSD holders receive no automatic CRV/veCRV governance rights, Curve fee share, collateral ownership, or legally enforceable redemption claim merely by holding the stablecoin.

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Frequently asked questions

Is crvUSD the same token as CRV?

No. crvUSD is Curve.Fi USD Stablecoin, an 18-decimal Ethereum ERC-20 at 0xf939...1b4E. CRV is Curve's separate governance token. Holding crvUSD does not itself create CRV or veCRV voting rights.

How does crvUSD try to manage liquidations?

LLAMMA spreads collateral across price bands and can gradually exchange collateral into crvUSD as oracle prices fall. If prices recover, some de-liquidation may occur. A rapid move beyond the bands can still cause hard liquidation and losses.

Can crvUSD holders redeem for one dollar or claim collateral?

No such general holder redemption, collateral-ownership, or legally enforceable revenue right is established by the cited token contract and materials. The token is intended to maintain a dollar peg through protocol mechanisms and markets, not a stated one-to-one legal redemption promise.

Can the crvUSD supply change?

Yes. The verified ABI exposes mint and burn functions and a set_minter function. PegKeeper and lending contracts can affect supply, so the designated minter and current permissions should be verified on-chain rather than assumed from the token name.

What are the main risks beyond normal stablecoin risk?

LLAMMA depends on oracle quality, AMM liquidity, and arbitrageurs; sharp collateral moves can trigger hard liquidation. The contract system is complex, and the 2023 audit documented resolved critical/high findings plus acknowledged medium/low observations. Privileged minter and protocol-admin state also warrants monitoring.

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