MEV Blocker Starts Earning Revenue from Builders, Remains Free for Users
MEV Blocker Starts Earning Revenue from Builders, Remains Free for Users
🐮 MEV Blocker's New Chapter
MEV Blocker, a product launched by CoW DAO a year ago to protect users from maximal extractable value (MEV) attacks, has reached an important milestone. As per CIP-40, MEV Blocker has started earning revenue from builders, allowing CoW DAO to continue supporting the product while keeping it completely free for users. Since its launch, MEV Blocker has rebated almost 1750 ETH to users, with a median refund of 0.007 ETH (approximately $24). It has defined a new category of user-protective RPC endpoints known as 'mev blockers.' MEV attacks are considered theft, and MEV Blocker aims to protect users from such attacks as a public good.
Today marks an important milestone in the evolution of MEV Blocker. Per CIP-40, MEV Blocker is now earning revenue from builders. This allows CoW DAO to continue its support for MEV Blocker and – most importantly – keeps the product completely FREE for users.
🗳️ CIP-40 asks whether MEV Blocker should start charging a fee to builders to use the service. Importantly, the proposed fee mechanism keeps MEV Blocker 100% free for users. Vote on CIP-40 here 👉 snapshot.org/#/cow.eth/prop…
CoW Protocol Maintains DEX Aggregator Leadership on Ethereum
CoW Protocol continues its market dominance in the DEX aggregator space on Ethereum, securing a **31.8% market share** in May 2025. This performance exceeds the combined share of major competitors 1inch and Fusion (29.6%). The protocol has shown consistent leadership, following April's strong showing of **35.6% market share** compared to competitors' 32.9%. Key factors driving CoW's success: - Superior pricing mechanisms - Enhanced routing capabilities - MEV protection features Trade on CoW Protocol: [swap.cow.fi](https://swap.cow.fi)
How Money Actually Flows in DeFi
DeFi operates more like financial plumbing than magic, with clear pathways for value movement between different participants. The system involves: - Liquidity providers who supply capital - Traders executing transactions - MEV bots capturing value from trade ordering Learn more about the mechanics at [CoW Protocol's educational hub](https://cow.fi/learn/how-money-flows-in-de-fi-unpacking-the-decentralized-financial-system).
AI Agents in DeFi: A Practical Guide
AI agents are being integrated into decentralized finance (DeFi) applications, offering automated solutions for: - Trading optimization and execution - Risk assessment in lending protocols - Market analysis and prediction - Portfolio rebalancing These AI-powered tools aim to enhance efficiency and reduce human error in DeFi operations. The [AImstrong AI Lending Agent](http://app.aimstrong.ai) demonstrates practical applications through automated lending decisions. Learn more about AI agents in DeFi through our comprehensive guide at [CoW Protocol](https://cow.fi/learn/how-ai-agents-can-be-used-in-defi).
MEV Blocker RPC Delivers Superior Swap Execution on Ethereum
A comprehensive analysis of Ethereum RPCs reveals MEV Blocker consistently outperforms competitors in swap execution: - Provides 9 basis points better output than Merkle/Blink - Delivers 21 basis points more than Flashbots per swap - Returns 100% of backrun value to users (vs 0% for some competitors) - Averages 0.00350 ETH per backrun The study, covering 90+ swaps across various tokens, confirmed statistical significance. MEV Blocker's Order Flow Auction (OFA) design prioritizes user value retention, making it the most efficient non-extractive option available. [Read the full research paper](https://arxiv.org/abs/2505.19708)
CoW Protocol Launches Fair Combinatorial Batch Auctions (FCBAs)
CoW Protocol has upgraded its core trading mechanism with Fair Combinatorial Batch Auctions (FCBAs), delivering significant improvements: - 33% higher throughput per auction - Enhanced batch matching efficiency - Faster settlement times - Complete MEV protection maintained - 25% increase in solver rewards The new system ensures trades only execute when beneficial for all participants. Solvers can now submit combinatorial bids with advanced logic to find optimal outcomes. Key benefits: - Better pricing - Fairer trading conditions - Improved gas efficiency - Enhanced MEV protection Try it now at [CoW Swap](https://swap.cow.fi)