How Flashbots Protect and 1inch Fusion differ on type, protection, rebates and what they’re built for.
| Flashbots Protect | 1inch Fusion | |
|---|---|---|
| Type | Private RPC | Intent DEX |
| How it works | Sends your transaction privately to the Flashbots block-building auction. MEV-Share selectively shares hints so searchers can bid to back-run it, sharing the profit with you. | You sign an order (intent) rather than broadcasting a public tx; resolvers compete to execute it on-chain, absorbing MEV risk and often improving your price. Failed orders cost no gas. |
| Protects against | Frontrunning, sandwiching & failed-tx reverts | Sandwiching/frontrunning via off-chain intents |
| Rebates | 90% of back-run MEV + gas-fee refunds | Better execution price instead of a cash rebate |
| Chains | Ethereum | Ethereum + major L2s |
| Setup | Add RPC rpc.flashbots.net to your wallet | Swap on 1inch with Fusion mode |
| Best for | The conservative, battle-tested default | Swappers who want gasless, protected trades |
Pick Flashbots Protect for the conservative, battle-tested default; pick 1inch Fusion for swappers who want gasless, protected trades.