Answer · Safety

How to avoid MEV and sandwich attacks

This guide covers how to avoid mev and sandwich attacks step by step using XAUConnect. You keep custody of your wallet keys throughout; the platform aggregates quotes and builds transactions for you to approve.

Self-custody means you are responsible for verifying contracts and URLs. The checklist below covers the habits that prevent most preventable losses.

Before you start

Decentralized swaps settle against on-chain pools, not a centralized order book. Prices move every block as other traders execute, which is why quotes expire and should be refreshed before signing. Pick the network where your tokens already live before quoting. Moving assets between chains requires a separate bridge flow.

Step-by-step

1. Select network and tokens in the swap widget 2. Connect a compatible wallet 3. Enter amount and wait for quotes to refresh 4. Compare routes by minimum received 5. Set slippage appropriate to pool depth 6. Approve token spending once if required 7. Confirm the swap and verify receipt on the explorer If quotes fail, reduce size slightly, nudge slippage up incrementally, or retry after network congestion eases.

Using XAUConnect

XAUConnect supports spot swaps and cross-chain routes with wallet-signed execution. Quotes refresh as pool reserves change — if you wait more than a minute between preview and signature, request a fresh quote. Switch networks from the chain selector without leaving the app. Each network uses its own gas token and block explorer.

Why traders get poor fills

Assuming bridge receipts will match previews when destination chain congestion spikes. When in doubt, run a small test trade before committing size.

After you confirm a swap

Open your wallet's transaction history or the relevant block explorer to confirm the output amount matches the quote's minimum received. Discrepancies usually mean slippage exceeded tolerance or the pool moved during confirmation. XAUConnect does not produce tax reports — export history from your wallet or explorer for accounting if needed.

Fees, slippage, and price impact

Three separate costs affect every swap: the platform or routing fee (shown in the quote card), network gas paid to validators, and price impact from moving the pool curve with your trade size. Slippage tolerance tells the contract how far the price may move while your transaction confirms. Start conservatively on unfamiliar pairs — widening slippage invites worse fills on public mempools. Gas varies widely by network — Ethereum mainnet costs more than most L2s, while Solana uses priority fees during congested periods.

Legal

Risk disclosure

XAUConnect is a non-custodial swap aggregator. Digital assets are volatile and may lose value rapidly. Content on this page is educational and not investment advice. Verify every contract address on the official block explorer before approving a transaction.

Frequently asked questions

How do I how to avoid mev and sandwich attacks?

Yes. Connect your wallet, enter tokens and amount, pick a route, and confirm. Fees and minimum received are shown before you sign. XAUConnect never holds your funds — each step requires a wallet signature.

Do I need an account or KYC?

No. Connect a wallet only when you want to execute a swap. Re-quote if more than a minute passes before you sign; pool prices move continuously.

Which networks are supported?

Ethereum, BNB Chain, Polygon, Arbitrum, Base, Avalanche, and Solana. Start with a small test amount when trying a new token or route for the first time.

Is this financial advice?

No. This is educational content about decentralized trading mechanics. Compare at least two routes when the trade size is meaningful.

Live execution

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Open the swap page to compare live routes, set slippage, and sign from your own wallet — fully non-custodial.

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