What MEV is on EVM chains, how sandwich attacks target your Telegram bot trades, what private mempool routing fixes (and what it doesn't), and realistic MEV expectations on Robinhood Chain.
MEV (maximal extractable value) is profit extracted by reordering, inserting or censoring transactions around yours. The classic attack on a trading-bot user is the sandwich: a bot sees your pending buy in the public mempool, buys in front of you (price up), lets your buy execute at the worse price, and sells immediately after — you pay the difference as invisible slippage.
Telegram bots are prime MEV targets precisely because they are convenient: users market-buy hyped launches with loose slippage settings, on predictable tokens, in bursts right after alerts. Attacker bots pattern-match exactly that flow. If your bot routes swaps through the public mempool with default slippage, you are the snack.
MEV pressure scales with chain maturity and builder market structure. Ethereum mainnet is the extreme case; younger chains like Robinhood Chain currently have thinner searcher infrastructure, but the pattern arrives with volume. The bots that survive are the ones that built private-routing and simulation discipline before the sandwiches arrive.
No. Private routing prevents mempool sandwiches; it cannot fix thin liquidity, hook-level extraction, or your own 50% slippage setting. Any bot claiming total MEV immunity is marketing.
Look at the transactions immediately before and after yours in the block. Same token, attacker buy before and sell after, your buy in the middle = sandwich. It is on-chain and visible.
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