On a public network, bots watch pending trades and try to jump ahead of yours for profit. Merlin Guild can submit your trades as protected bundles so they are far harder to front-run, and it works to land them reliably even when the network is congested.
Where to find it
MEV protection is an option on the trading flow. Turn it on before you submit a trade or a bulk run.
How it works
Understand front-running
Front-running is when someone sees your trade before it lands and inserts their own trade around it to profit at your expense, often called a sandwich. It is a common risk for ordinary public trades.
Turn on protection
Enable protected bundles for your trade. Instead of broadcasting in the open where bots can react, your trade is packaged so it is much harder to see and exploit before it executes.
Submit with reliable delivery
Merlin Guild submits through fast, reliable paths and keeps trying sensible routes if the network is busy, so your trade has a strong chance of landing without you babysitting it.
Use it for bulk runs
Protection applies to bulk trades too, so a large run across many wallets gets the same shielding as a single trade.
Safety behaviours
- Harder to sandwich: protected submission reduces the chance a bot can wrap your trade for profit.
- Resilient under congestion: if the network is busy, the app keeps working to land your trade rather than failing silently.
- You decide when to use it: protection is a choice per trade, so you stay in control of the trade-off between speed and shielding.
Good practices
- Enable protection for timing-sensitive trades and for anything you would not want sandwiched.
- Test the flow on a burner wallet first so you know what to expect.
- Remember that protection reduces risk but cannot guarantee any specific on-chain outcome.