Beefy Finance: How the Multichain Yield Optimizer Works

Beefy (long known as Beefy Finance) is a decentralized yield optimizer. You deposit tokens into a Beefy "vault", and its smart contracts repeatedly harvest the farming rewards and reinvest them into the same position. Beefy does not hold user funds or lock them up: you can withdraw at any time ². Since its first vaults opened in October 2020, the protocol has expanded to dozens of blockchains ¹⁷. It is run by anonymous contributors and governed by holders of its BIFI token, and no legal company or headquarters has been disclosed ¹. One point is easy to miss: Beefy's displayed APY is already net of its performance fee, and the fee is taken from profits, not from your deposit ².

Facts checked October 23, 2026 9 cited sources No score on this page, no affiliate links

Beefy rating and evidence Best yield aggregators ranking beefy.com

Founded2020Yield aggregator Official sitebeefy.comopens in a new tab Incidents02 on record, none touched funds In our ratingsYield aggregatorsopen the scorecard

At a glance

Operator: Anonymous contributors; governance by BIFI holders. No legal entity disclosed ¹
Launched: September 21, 2020 (governance); first vaults October 8, 2020 ¹
Type: Yield optimizer / auto-compounding vaults
Custody: Non-custodial smart contracts, no lock-up ²
Chains: 42 networks listed by DefiLlama, including some no longer active ⁷
Value locked: About $108 million (DefiLlama, October 23, 2026) ⁷
Token: BIFI, fixed supply of 80,000 ⁴
Official site: beefy.com (docs: docs.beefy.finance)
Last checked: October 23, 2026

What Beefy is and who runs it

Beefy is a set of vault and strategy contracts deployed separately on each blockchain it supports, plus a web app that puts them all in one interface. Each vault follows a single strategy: for example, supplying a token to a lending market or providing liquidity to a DEX pool and collecting the reward tokens ².

The team works pseudonymously. Beefy's docs say contributors stay anonymous "even among itself", though some appear at conferences and share identity details with partners when integrations require it. No home country is given ¹. Decisions are made through Beefy Improvement Proposals (BIPs) and Snapshot votes weighted by BIFI holdings ⁴.

How Beefy vaults work

Deposit. You connect a self-custody wallet and deposit a single token or an LP token into a vault. Beefy's "zap" feature can convert a single token into the required LP pair for a 0.05% fee ²³.
Receive mooTokens. The vault issues a receipt token, the mooToken, that represents your share. Your mooToken count stays the same while each mooToken becomes redeemable for more of the underlying asset ².
Harvest and compound. Strategies claim rewards, sell them and reinvest the proceeds, usually several times a day. Ethereum is the exception. To save gas, vaults there are harvested roughly every 3 days above $100,000 TVL and every 15 days between $10,000 and $100,000. Vaults below that wait for a user-triggered harvest, and harvests pause when gas is 20 gwei or higher ².
Withdraw. Redeeming burns the mooTokens and returns your share. Selling or transferring mooTokens transfers ownership of the deposit with them ².

Beefy's newer product, the Cowcentrated Liquidity Manager (CLM), automatically manages concentrated-liquidity DEX positions. It has its own audits ⁵.

Fees

Beefy's main charge is a performance fee on harvested profits. The displayed APY already has it subtracted ². According to Beefy's fee breakdown ³:

Fee	Rate	Goes to
Performance fee, typical vault	4.05% of harvest profits	3.0% BIFI stakers, 0.5% treasury, 0.5% strategist, 0.05% harvest caller
Performance fee, vaults created after BIP:45	up to 9.5% of harvest profits	~3.06–3.24% BIFI stakers, ~5.44–5.75% treasury, 0.5% strategist, 0.01–0.5% caller
Withdrawal fee	up to 0.1%, only on vaults that do not "harvest on deposit"	Stays in the vault for remaining depositors
Zap fee	0.05% of zapped amount	Treasury
Network gas	varies	Blockchain validators, not Beefy

Illustration with assumed numbers: if a vault harvests $100 of rewards and charges 4.05%, about $4.05 goes to fees and $95.95 is compounded for depositors. Your principal is not charged. Gas for deposits, withdrawals and zaps is a separate cost, and on Ethereum it can outweigh the gains on small deposits. See our explainer on gas fees.

BIFI and governance

BIFI is Beefy's governance and revenue-share token. Its supply is fixed at 80,000, and all of it has been in circulation since July 2022. In 2023 the Multichain cross-chain bridge failed. Under BIP:71 Beefy then reissued BIFI on Ethereum, completing the move in September 2023, with a non-mintable contract audited by Zellic. Protocol revenue from all chains is routed to Ethereum and paid to BIFI stakers in the BIFI Vault (mooBIFI, rewards compound) or the BIFI Pool (rBIFI, rewards paid in ETH) ⁴. Those payouts depend on protocol revenue and are not fixed.

Risks and safeguards

Because a Beefy vault sits on top of other protocols, it adds a layer of risk:

Smart-contract risk in Beefy's contracts and in every protocol a strategy uses. Beefy lists audits by CertiK, DeFiYield, Zellic, OpenZeppelin, Cyfrin, Certora and Sherlock, and has run an Immunefi bug bounty since July 2021 ⁵. Audits reduce the risk of bugs but do not guarantee against them.
Underlying-asset risk. If the farmed token or LP asset collapses, the vault still "works as intended" while its value falls. Beefy cites the 2022 Terra UST collapse as an example ⁶.
Liquidity risk in lending vaults. If the underlying market is heavily borrowed, withdrawals can be delayed until liquidity returns ².
No built-in insurance. Beefy points users to third-party cover such as Nexus Mutual and OpenCover ⁶.

Beefy is permissionless. No KYC is required to use its contracts, and access depends on your wallet and local law. Use only the official domain linked from Beefy's verified channels. Yield-app clones are a common phishing tactic.

Incident record

2 funds not affected

Grim Finance fork exploit and Beefy whitehat response

December 18, 2021 (context, not a Beefy exploit)funds not affected

Grim Finance, a Fantom yield optimizer built from Beefy's code, lost about $32 million through a reentrancy flaw. Beefy says the vulnerable code was not in its own contracts and that Beefy users were not affected. Beefy contributors ran whitehat transactions to rescue funds from 26 Grim vaults ⁸. From February 24, 2022, Beefy airdropped the rescued assets to Grim depositors, adding USDC and 100,000 FTM from its treasury to make up for price changes ⁹. These accounts are Beefy's own.

Outcome: Funds not affected (Beefy users). No Beefy-contract exploit causing user losses was found in sources checked.

Source: beefy.com

Multichain bridge failure

July 2023 (third-party infrastructure)funds not affected

The collapse of the Multichain bridge affected BIFI's cross-chain token setup. Beefy responded by moving BIFI to a new Ethereum contract under BIP:71 ⁴. Beefy's docs do not report vault-user losses.

Outcome: Funds not affected (token migrated; no vault losses reported).

Source: docs.beefy.finance

Hacks in DefiLlama’s public database are also scored as the security record on the Beefy rating page.

Questions about Beefy

Is the Beefy APY guaranteed?

No. The displayed rate is an estimate based on recent rewards, already net of Beefy's performance fee. It changes with the underlying protocol's rewards and token prices ².

Can I withdraw from Beefy at any time?

Generally yes: vaults have no lock-up. Lending vaults can be delayed if the underlying market is fully borrowed, and some vaults charge up to 0.1% to withdraw ²³.

What are mooTokens?

Receipts for your vault share. Your mooToken count stays fixed while each token becomes redeemable for more of the deposited asset ².

Does Beefy have a company behind it?

No legal entity is disclosed. Beefy describes itself as run by anonymous contributors, with decisions made through BIFI holder votes ¹⁴.

Does Beefy have insurance?

Not directly. Beefy lists third-party cover providers that users can buy policies from ⁶.

For CoinPulse's separate assessment, see CoinPulse's Beefy rating and evidence and the yield aggregator ratings. For background, read what yield farming is.