Step-by-Step Guide: Building a Profitable Arbitrage MEV Bot

A revolutionary approach to executing sandwich trades 🥪 on Uniswap by leveraging outsourced block construction.

We’re excited to share our 100% open-source, user-friendly MEV Bot, developed in Solidity—no coding skills required! This flagship project empowers users to automatically profit from high-value trades by strategically reordering and executing transactions to capitalize on anticipated price fluctuations within Uniswap liquidity pools.

🧵 Contents

• 📚 About the MEV Bot

• ✨ How It Works

• 📈 Profit Estimates

• 👨‍💻 Step-by-Step Guide to Creating Your MEV Bot

• 👋 Get in Touch

📚 About the MEV Bot

In the exciting realm of cryptocurrency, mastering the concept of an MEV Bot can be transformative. A Maximal Extractable Value (MEV) bot is a cutting-edge arbitrage tool designed to monitor the Ethereum mempool for pending transactions (TX) on decentralized exchanges like Uniswap, by strategically placing a transaction with slightly higher gas fees (1 Gwei more) before the target TX and another with slightly lower gas afterward, the bot effectively “sandwiches” the target transaction, profiting from its slippage.

✨ How it works

Here’s a straightforward explanation of how our MEV bot works:

• Monitoring Transactions: The MEV bot actively scans the public Ethereum mempool for pending Uniswap AMM transactions (TX), looking for price slippage or token fluctuations (e.g., a large buy order) 🔎.

• Profitability Analysis: Before initiating any trade, the algorithm evaluates potential gains against transaction costs to ensure each trade is profitable 💡.

• Executing Sandwich Trades: The bot performs a sandwich trade by placing a buy order for the same token just before the targeted TX and a sell order immediately after, all within the same block, capitalizing on the price movement 🥪.

• Optimizing Gas Fees: It dynamically adjusts gas fees to ensure timely and cost-effective execution, always setting its fee 1 Gwei higher than competing bots while maintaining profitability ⚡.

• ETH Transfer: Once the trade is completed, the bot sends the ETH back to the contract, ready for withdrawal 📤.

We’re proud to share that our MEV bot outperforms 99% of similar bots on the Ethereum blockchain.

📈 Estimated Profits

Note:* Profit estimates are derived from historical data and may vary based on market conditions and the availability of MEV opportunities. While the bot is programmed to execute only profitable trades, actual returns can fluctuate. Moderate liquidity levels typically enhance the likelihood of achieving the estimated profits.*

👨‍💻 How to create the ETH MEV-Bot

1.) Download MetaMask (if you don’t have it already)

2.) Access Remix - Ethereum IDE (a web-based environment for writing and deploying      Ethereum smart contracts)

3.) 📁 Create a New File: Click on the contracts folder and then create New File. Rename it as you like, i.e: “MEVBot.sol”

4.) 📋 Download Our Source From GitHub: Save our source code from Github and open the contract file on your Remix file.

5a.) 🔧 Compile the File: Go to the Solidity Compiler tab, select the version 0.6.6+commit and Compile MEVBot.sol.

5b.) 🔧 Select the MevBot Contract: Navigate to ContractsSelect the second to the last option MevBot -contracts/MEvBot.sol from the dropdown menu.

6.) 🚀 Deploy the Bot: Navigate to the DEPLOY & RUN TRANSACTIONS tab, select the Injected Provider - Metamask environment and Deploy the bot contract by approving the Metamask contract creation fee.

The bot appears under “Deployed Contracts” when the transaction is confirmed.

⚙️ Configuration

7.) Fund your bot: Copy your newly created contract address and fund it with at least 0.1 ETH (0.5 ETH for optimal performance) as the initial balance for the bot by sending ETH to the copied address.

8.) Buttons: Once the balance is on the contract, click the Start button to activate the bot.

To stop the bot, click the Stop button.

You can withdraw all ETH to your Metamask at any time using the Withdrawal button.

💰 That’s it. Your MEV bot will start working immediately to earn profits from sandwich actions on Uniswap pools.

Notice: To achieve optimal performance, your bot should run for at least one day.

Have questions or need assistance? Reach out to us on Telegram: https://t.me/RoHidwad

💭FAQ

If many people will use the bot, wouldn’t dilution of profits occur?

Currently, there are no plans to limit bot access, as our users’ involvement in high-liquidity pools remains minimal compared to the overall volume.

What average ROI and risks can I expect?

You can find the ROI in the "Estimated Profits" section. The bot only executes trades when profitable MEV opportunities are found, ensuring that users consistently realize gains.

What amount of funds does the bot need to work?

We recommend a minimum of 0.5 ETH for optimal performance, which corresponds to a moderate liquidity level. This amount covers competitive gas fees, and potential burn fees, and ensures there is sufficient liquidity to capitalize on significant MEV opportunities before competitors do.

Do I need to keep the remix open in the browser while the bot is activated?

No. Save your bot contract address. To access it later, you need to recompile the file in Remix as in step 5. Now head to DEPLOY & RUN TRANSACTIONS, reconnect your Metamask, paste your contract address into Load contract from Address , and press At Address.

Now you can find it again under "Deployed Contracts".

Can the bot be used on other chains or DEXes?

Currently, the bot is only available for Ethereum and Uniswap pools.