Swap vBNB at the Best Rate

What is vBNB?

Venus is a money market: suppliers deposit assets that borrowers take out against collateral, with interest rates set algorithmically from each market's utilization. Every market issues a vToken that records a supplier's share of the pool, and vBNB is that token for the protocol's core BNB market. vTokens follow the BEP-20 standard and are freely transferable, so the claim on the pool can itself be traded.

vBNB does not track the price of BNB one to one. Its value is the underlying BNB per vBNB implied by the market's exchange rate, which starts small and grows as interest accrues, and the token uses eight decimals against BNB's eighteen. Selling vBNB is selling the deposit itself, including its accrued interest and its claim on future yield.

How vBNB works

Supplying BNB calls mint on the vBNB contract, which issues vTokens at the current exchange rate; redeeming burns them and pays out BNB at the newer, higher rate. Interest accrues whenever anyone interacts with the market, as each mint, redeem, borrow or repay triggers the accrual function that rolls interest into the exchange rate for every supplier and borrower at once.

Suppliers can also flag vBNB as collateral and borrow other assets against it, up to the collateral factor governance assigns to BNB. The borrow rate follows an interest rate model driven by utilization, and when utilization spikes, rates rise to pull deposits in and push borrowers to repay. A vBNB balance used as collateral backs a live loan, so it cannot be fully redeemed until the debt is repaid.

vBNB supply and tokenomics

vBNB has no supply schedule of its own: tokens are minted against deposits and burned on redemption, so outstanding supply mirrors how much BNB sits in the market. Value accrual happens through the exchange rate rather than through rebasing balances, which keeps the token composable with protocols that expect static balances.

Unusually among Venus markets, the vBNB contract is not upgradable. Its administrative functions are held by a separate VBNBAdmin contract, which sweeps the market's accumulated reserves out to the protocol's share reserve, where governance-defined rules distribute protocol income.

Who builds vBNB

Venus was launched in 2020, built initially by the team behind the Swipe wallet, and distributed its XVS governance token through a Binance Launchpool program with no allocation pre-mined for the founders or team. Since then, development has passed to community contributors and the protocol has shipped major revisions, with the current Venus V4 generation adding isolated pools, finer risk controls and role-based permissions.

The code is open source under the VenusProtocol organization on GitHub, and the deployed core contracts, including the vBNB market, are verified on-chain.

How vBNB is governed

The Venus community governs through XVS: holders lock tokens in the XVS vault, then propose and vote on Venus Improvement Proposals executed on-chain through a Governor Bravo contract and timelocks. Parameters that shape vBNB directly, including the BNB market's collateral factor, interest rate model and reserve handling, are all set through that process. vBNB itself carries no voting power; it is purely the deposit receipt.

What people use vBNB for

vBNB is what a Venus BNB deposit looks like once it becomes a token, so its uses all follow from that deposit-receipt role.

• Earning the BNB market's supply interest by holding the receipt of a deposit.
• Serving as collateral inside Venus to borrow stablecoins or other listed assets.
• Transferring or trading a whole deposit position without unwinding it first.
• Integrating BNB deposits into other protocols that account in vTokens.

vBNB risks and considerations

vBNB inherits every risk of the pool behind it. Smart contract failure, oracle mispricing or bad debt in the market would impair what a vBNB redeems for, and the protocol has weathered real stress: after the 2022 BNB Chain bridge exploit, the attacker borrowed heavily against stolen BNB on Venus, leaving a position so large that the chain's core team stepped in to manage it. When utilization is extreme, redemptions can also have to wait for liquidity to return.

Positions borrowed against vBNB collateral face liquidation if BNB's price falls far enough, with liquidators seizing the collateral at a discount. And because the token's value rides an exchange rate rather than a peg, quoting it like regular BNB understates or overstates a position; integrations must read the rate from the contract.