Learn how CoW Protocol's batch auctions and solver competition protect your trades from MEV, remove the need to pay gas yourself and return price improvements to you, what CoW Swap charges, and how it compares with the other large DEX aggregators.
Key takeaways
- CoW Swap is an intent-based exchange: you sign an order off-chain, and solvers compete in a batch auction to fill it, first by matching traders directly, then through on-chain liquidity.
- Per the CoW Protocol docs, each order pays a 2 bps volume fee (0.3 bps on stablecoin pairs) plus 50% of any price improvement over the quote, capped at 0.98%. Gas is paid by the solver and included in the price.
- Over the 30 days to November 10, 2026, CoW Swap handled $3.35 billion of volume, ranking fifth of the six aggregators compared here, behind Jupiter ($13.6 billion), 0x ($6.02 billion), KyberSwap and UniswapX, per DefiLlama.
- Its main advantage is protection against front-running and sandwich attacks; the trade-off is that settlement waits for the next batch instead of executing in your own transaction.
CoW Swap 是什么？
CoW Swap is the main trading interface for CoW Protocol, where CoW stands for Coincidence of Wants. It is an intent-based decentralized exchange (DEX) protocol. On a classic DEX, your trade executes immediately against an on-chain liquidity pool. On CoW Swap, orders are collected, matched and settled together in batches.
When you trade on CoW Swap, you sign an off-chain message that states what you want to sell, what you want to buy and the minimum amount you will accept. Third parties called solvers then compete to find the best way to fill your order. This competition, combined with peer-to-peer matching, gives you MEV protection and lets you trade without paying gas yourself.
CoW Protocol launched in 2021 and is governed by CoW DAO. On November 10, 2026, the CoW Protocol docs list its settlement contract on 11 mainnets: Ethereum, Arbitrum One, Avalanche, Base, BNB Chain, Gnosis Chain, Ink, Linea, Optimism, Plasma, Polygon. Over the previous 30 days it settled $3.35 billion of trades, per DefiLlama.
基于意图的交易
签署您想交易的内容，而不是如何交易。求解器会为每个订单竞争寻找执行路径。.
MEV 受保护
批量拍卖和链下订单消除了 ethereum.org 上描述的前置交易和夹击攻击（见来源）。.
免 Gas 交换
No ETH needed to place an order. Solvers pay the transaction cost, and a network fee is included in the execution price.
How CoW Swap Works
CoW Swap rests on three ideas: batch auctions, Coincidence of Wants (CoW), and solver competition. Together they form a trading model that differs from the automated market maker (AMM) model used by Uniswap. Our liquidity pool guide explains the AMM side.
批量拍卖
Instead of processing trades one by one as they arrive (as Uniswap or SushiSwap pools do), CoW Protocol collects orders over a short time window and settles them in a single on-chain transaction called a batch. Within a batch, all trades on the same token pair receive the same clearing price. No trader gets a worse deal for being later in the queue.
这消除了MEV机器人所利用的先到先得排序机制。由于同一批次中的订单以同一价格结算，重新排序它们不会带来任何利润。.
需求巧合（CoW）
The feature the protocol is named after, Coincidence of Wants, matches orders directly between traders when possible. If Alice wants to swap ETH for USDC and Bob wants to swap USDC for ETH in the same batch, their orders can be matched peer-to-peer without touching an AMM pool.
CoW 撮合可避免 AMM 池费用和价格影响。在实践中，部分撮合很常见：订单的一部分通过点对点方式成交，其余部分则被路由至链上流动性。.
求解器竞争
Once a batch is collected, solvers compete in an auction to settle it. Each solver proposes a solution: how to fill each order, which liquidity sources to use (Uniswap, Balancer, Curve, private market makers and others), and how to route the trades.
The solver whose solution gives traders the most surplus wins the batch. Surplus is the difference between the price you accepted and the price you actually got. Solvers are paid by the protocol for winning, so they compete to deliver more value to users. Only solvers on an allow-list managed by CoW DAO can submit settlements, per the CoW Protocol docs.
MEV Protection: How CoW Swap Shields Your Trades
最大可提取价值（MEV）是去中心化交易所交易中的一项隐性成本。机器人会监控以太坊内存池中的待处理交易，并通过抢跑（在你的交易之前买入以推高价格）和三明治攻击（在你的交易前后分别买入和卖出，以捕获你造成的价格影响）来提取价值。Ethereum.org 和 Flashbots 记录了这些攻击及其规模（见来源）。.
CoW Swap protects against them through several layers of design.
链下订单提交
订单在链下签名，不会作为待处理交易进入公共内存池。机器人无法看到它们，因此无法进行抢跑。.
统一清算价格
All orders on the same pair in a batch settle at the same price. There is no advantage to reordering transactions because the price does not depend on position.
点对点匹配
CoW 撮合绕过 AMM 池。当交易直接在用户之间撮合时，没有可供机器人利用的池交易。.
盈余归于交易者
Price improvements found by solvers go to the trader, minus the protocol's share: 50% of any quote improvement, capped at 0.98% of the order (see the fee section below).
Key Features of CoW Swap
无燃气交易
You do not pay gas for a swap. You sign an off-chain message, which costs nothing. The solver that wins the batch pays the gas to settle on-chain and is repaid through a network fee included in your execution price. Our guide to gas fees explains what that cost covers.
Once a token is approved, you can trade it with no ETH in your wallet. This helps users who hold only ERC-20 tokens. Selling native ETH still requires an on-chain transaction, because ETH cannot be moved by signature alone.
盈余优化
When a solver beats your quote, you keep part of the improvement. For example, if you are quoted 1,000 USDC for 0.5 ETH and the solver delivers 1,020 USDC, the protocol takes 50% of the 20 USDC improvement (10 USDC, well under the 0.98% cap), plus the 2 bps volume fee of about 0.20 USDC, and you receive about 1,009.80 USDC.
Competition between solvers is what produces this improvement. The CoW Protocol docs explain how surplus and fees are calculated (see Sources).
限价单
CoW Swap supports limit orders that cost no gas to place or cancel. They are signed off-chain and execute only when a solver can fill them at your price or better. You can also place time-weighted average price (TWAP) orders, which split a large trade into parts executed over time to reduce price impact.
CoW 钩子
CoW Hooks let you attach on-chain actions before or after a swap. For example, you can claim rewards, unwrap WETH or deposit into a vault in the same settlement as your swap. This makes CoW Swap a useful building block for DeFi automation.
CoW Swap Fees
CoW Protocol publishes the fee models currently active on its governance fee page (see Sources). All protocol fees are taken from the execution in the surplus token (the token you buy on a sell order), not as a separate transfer, so the amount you receive already reflects them. Partner apps that integrate CoW Protocol may add their own fee.
| Fee | Applies to | Rate (per CoW Protocol docs, November 2026) |
|---|---|---|
| Volume fee | All orders | 2 bps (0.02%) of volume; 0.3 bps (0.003%) on correlated assets such as stablecoin and RWA pairs |
| Quote improvement fee | Market orders (and in-market limit and TWAP orders) that execute better than quoted | 50% of the improvement, capped at 0.98% of order volume |
| Surplus fee | Out-of-market limit orders and discrete TWAP orders | 50% of surplus, capped at 0.98% of order volume |
| Network fee | All orders | Gas paid by the solver, included in the execution price |
Over the 30 days to November 10, 2026, users paid $2.04 million in fees on CoW Swap, per DefiLlama, or about 6.1 bps of its volume. That is above Jupiter (1.2 bps) and KyberSwap (1.1 bps), which charge little or no protocol fee on standard swaps. A lower headline fee does not mean a better net price: what matters is the amount you receive after fees, gas, price impact and MEV, so compare the final quote.
How to Trade on CoW Swap
Follow these steps to place your first MEV-protected swap.
连接您的钱包
Visit swap.cow.fi and connect a wallet such as MetaMask, Rabby, a WalletConnect wallet or a hardware wallet. Select the network you want to trade on; the supported networks are listed in the CoW Protocol docs.
选择代币 & 数量
Choose the token you want to sell and the token you want to buy, then enter the amount. CoW Swap shows a price quote, the fee, and the minimum amount you will receive after your slippage tolerance.
批准代币（仅首次）
The first time you sell a token on CoW Swap, you approve the CoW Protocol vault relayer contract to move that token. This is a one-time on-chain transaction per token, and it costs gas, unless the token supports a gasless permit. After that, swaps of that token need only a signature.
签署订单
点击 "Swap" 并在钱包中签署订单。这是一个无需 gas 的签名（EIP-712 类型化数据），用于定义您的订单。随后订单将提交至 CoW Protocol 订单簿。.
等待结算
求解器会将您的订单纳入即将处理的批次中。结算通常需要不到一分钟到几分钟的时间，具体取决于网络状况。您可以在 CoW Explorer 上跟踪该订单。如果在订单到期前没有求解器能以您的限价成交，则不会收取任何费用。.
COW 代币
COW is the governance token of CoW DAO. It launched in 2022 with a maximum supply of 1 billion tokens. On November 10, 2026, COW traded at $0.104, with a market cap of $60 million and about 574 million tokens in circulation, per CoinGecko. Its all-time high was $2.22 in March 2022.
治理
COW 持有者通过 CoW DAO 提案对协议升级、费用参数、资金库支出和求解器绑定规则进行投票，提案在论坛上讨论并在 Snapshot 上投票。.
求解器绑定
求解者必须缴纳保证金才能参与拍卖。如果求解者违反规则，保证金可能会被扣除，从而使求解者与用户的利益保持一致。保证金规模和资产由 CoW DAO 设定。.
费用收入
The fees in the table above are the protocol's revenue: $2.04 million over the 30 days to November 10, 2026, per DefiLlama. How that revenue is used (treasury, solver rewards, any buybacks) is decided by CoW DAO governance; the current policy is on the forum.
CoW Swap vs 1inch, 0x, UniswapX, Jupiter and KyberSwap
CoW Swap competes with other DEX aggregators: services that look across many liquidity sources to fill your trade. The table below compares the six largest by 30-day volume tracked by DefiLlama, ordered by volume.
How We Compared Them
Each aggregator is described on the same criteria: how orders are filled, swap volume over the 30 days to November 10, 2026 (DefiLlama aggregator dataset), fees paid by users over the same period where DefiLlama reports them, the published fee model and who pays gas. Fee models come from each project's official documentation or pricing page on November 10, 2026, listed in Sources. Coinstancy does not run a DEX aggregator. Figures are a dated snapshot: check the live values.
| 聚合器 | How orders are filled | Volume, 30 days | User fees, 30 days | Published fee model | Gas |
|---|---|---|---|---|---|
| Jupiter (Solana) | Aggregator routing across Solana DEXs; Ultra and Swap V2 order flow | $13.6 billion | $1.59 million (1.2 bps) | Ultra: 0 bps on pegged pairs, 2 bps SOL-stablecoin, 5 bps LST-stablecoin, 10 bps other pairs, 50 bps on tokens less than 24 hours old | Solana network fee |
| 0x (Swap API, used by Matcha and wallets) | Aggregation API that apps and wallets integrate | $6.02 billion | Not reported separately | 0.15% on select token pairs on the Standard plan, plus any fee the integrating app adds | User pays; Gasless API adds gas to the 0.15% fee |
| KyberSwap Aggregator | Aggregator routing across EVM DEXs | $5.36 billion | $563,023 (1.1 bps) | No protocol fee on swaps; positive slippage is collected on certain trades | 用户支付 |
| UniswapX | Dutch auction; competing fillers | $3.38 billion | Not reported separately | Filler gas and margin are built into the quoted price; no separate rate is listed in the UniswapX architecture docs | Filler pays; included in the price |
| CoW 交换 | Batch auction; solvers compete, peer-to-peer matching (CoW) first | $3.35 billion | $2.04 million (6.1 bps) | Volume fee of 2 bps (0.3 bps on stablecoin and RWA pairs), plus 50% of any quote improvement or limit-order surplus, capped at 0.98% of the order | Solver pays; included in the price |
| 1inch | Classic aggregation, or Fusion (Dutch auction with resolvers) | $2.80 billion | Not reported separately | Fusion: resolvers include gas in the exchange price; check the quote for any fee | User pays in Classic; resolver pays in Fusion |
Jupiter operates on Solana, where CoW Protocol is not deployed, so it does not compete with CoW Swap on the same networks. Among Ethereum-focused aggregators, 0x ($6.02 billion) and KyberSwap ($5.36 billion) handled more volume than CoW Swap, while UniswapX ($3.38 billion) was about level and 1inch ($2.80 billion) slightly behind. Uniswap's own pools, which most of these aggregators route through, are counted as a DEX and handled $63.2 billion over the same period.
Feature Comparison
| 功能 | CoW 交换 | Uniswap (pools and UniswapX) | 1inch |
|---|---|---|---|
| 交易模型 | 批量拍卖 + 求解器 | AMM pools; UniswapX Dutch auction with fillers | Aggregator; Fusion Dutch auction with resolvers |
| MEV 保护 | Built into every order | Through UniswapX | Through Fusion |
| Who pays gas | Solver (in the price) | You on AMM swaps; filler on UniswapX | You in Classic mode; resolver in Fusion |
| Price improvement | Shared 50/50 with the protocol, capped at 0.98% | Dutch auction decays toward a fill | Dutch auction decays toward a fill |
| Peer-to-peer matching | Yes (Coincidence of Wants) | 否 | 否 |
| 可组合性（Hooks） | CoW 钩子 | Uniswap v4 hooks | See 1inch docs |
高级功能
除了简单的兑换之外，CoW Protocol 还提供面向开发者、DAO 和高级用户的功能。.
CoW 钩子
CoW Hooks 允许您将交换前和交换后的操作附加到订单上。前置钩子可能会从金库中提取代币，而后置钩子可能会将输出存入借贷协议。这些操作与交换在同一结算交易中运行。用例包括：
- 领取质押奖励并立即将其兑换为稳定币
- 将代币从 L2 桥接到以太坊，然后兑换并存入 Aave
- 在兑换后将 WETH 解包为 ETH
- 在一次交互中批准代币并进行兑换
程序化订单
Smart contracts can place orders on CoW Protocol through the programmatic order framework. This lets DAOs, treasuries and protocols automate trades. TWAP (time-weighted average price) orders split a large trade into smaller parts over time to reduce price impact.
Milkman 是构建在 CoW Protocol 上的合约，允许资金库提交一笔交易，其价格在执行时与链上预言机进行核对，因此该交易只会以公平的市场价格成交。.
CoW 自动做市商
CoW AMM is an automated market maker designed to reduce loss-versus-rebalancing (LVR), the loss liquidity providers suffer when arbitrageurs trade against stale pool prices. In a classic AMM, that arbitrage profit goes to bots. In CoW AMM, the pool is rebalanced inside the CoW Protocol batch auction, and solvers compete to give the pool the best price. DefiLlama lists Balancer CoW AMM among the Balancer protocol's products.
Whether this improves returns for a given pool depends on the assets and market conditions. CoW DAO publishes pool data on its site; check it before providing liquidity, and read our guide on impermanent loss first.
常见问题
Is CoW Swap safe to use?
What fees does CoW Swap charge?
CoW Swap 如何防御 MEV？
Do I need to pay gas fees on CoW Swap?
Is CoW Swap bigger than 1inch or Uniswap?
COW 代币的用途是什么？
How is CoW Swap different from Uniswap?
继续学习
探索更多关于 DeFi 协议和交易的指南。.
Uniswap vs CoW Swap
两种 DEX 模型的并排比较：AMM 与批量拍卖。.
阅读比较Balancer 指南
Weighted pools, V3, the November 2025 exploit and how Balancer compares with Uniswap and Curve.
阅读指南什么是燃气费？
What you pay for when you send a transaction, and how to pay less of it.
阅读指南将您的DeFi知识付诸实践
After swapping tokens on CoW Swap, you can place your USDC in Coinstancy Dollar Savings at a fixed 7.50% APY, the rate currently in force, which may be revised. Interest accrues every second and is automatically reinvested. No lock-up; you can request a withdrawal at any time, normally settled within 48 calendar hours. Coinstancy is custodial: your USDC first enters a multisignature wallet operated by Coinstancy.
在Coinstancy开始赚取收益来源与延伸阅读
本页面中的数字和声明均基于以下文档。具有时效性的数字（利率、收益率、费用、市场数据）会变动：在据此行动之前，请在来源处核实实时数值。.
- CoW Protocol 文档docs.cow.fi
批量拍卖、需求巧合、求解器、盈余、CoW Hooks 和程序化订单如何运作。.
- CoW Protocol documentation, Feesdocs.cow.fi
The volume fee, quote improvement fee and surplus fee currently active, their caps and how they are charged.
- CoW Protocol 文档，核心合约docs.cow.fi
The networks on which the settlement contract is deployed, and the upgradeable solver allow-list.
- CoW Protocol 合约仓库（GitHub）github.com
Open source settlement contracts and the published audit reports.
- CoW DAO 论坛forum.cow.fi
由 COW 持有者决定的关于费用、求解器绑定和资金库使用的治理提案。.
- DefiLlama, DEX aggregatorsdefillama.com
30-day volume of CoW Swap, Jupiter, 0x, KyberSwap, UniswapX and 1inch, and Uniswap DEX volume.
- DefiLlama, Feesdefillama.com
Fees paid by users over 30 days on CoW Swap, Jupiter Aggregator and KyberSwap Aggregator.
- Jupiter developer docs, Ultra Swap feesdev.jup.ag
Jupiter Ultra fee tiers by pair type (Ultra is now superseded by Swap V2).
- 0x, Pricing0x.org
The 0.15% fee on select pairs for the Swap API Standard plan and on Gasless API swaps.
- KyberSwap, Fee Scheduledocs.kyberswap.com
No protocol fee on aggregator swaps, positive slippage collection, and fees on other KyberSwap products.
- Uniswap developer docs, UniswapX architecturedevelopers.uniswap.org
How UniswapX Dutch orders and filler competition work.
- Uniswap developer docs, Feesdevelopers.uniswap.org
Uniswap pool fee tiers and the protocol fee activated by the UNIfication proposal.
- 1inch, Fusion Protocol1inch.network
How 1inch Fusion works: Dutch auction, resolvers paying gas and including it in the price.
- Ethereum.org，最大可提取价值（MEV）ethereum.org
本指南中使用的 MEV、抢先交易和三明治攻击的定义。.
- Flashbots documentationdocs.flashbots.net
关于以太坊上 MEV 提取的研究和工具。.
- CoinGecko，CoW Protocol (COW)coingecko.com
COW price, market cap, circulating and maximum supply, and all-time high.
Last reviewed: November 2026. External links open in a new tab; Coinstancy is not responsible for their content.
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