Enable MEV protection on your Chainstack Ethereum and BNB Smart Chain nodes to shield transactions from front-running, sandwich attacks, and other value extraction methods.
MEV protection is a Marketplace add-on you manage from your node’s Add-ons tab. It is available on these networks and node types:
On Global Nodes, MEV protection is available on every plan, including the Developer plan.On L2 sequencer chains — Arbitrum, Base, Arc, and Robinhood Chain — transactions are not broadcast to a public mempool, so there is no third-party front-running to shield against. Use Optimized Submission instead.
You construct and sign your transaction as usual and send it through our endpoint. This is sent as eth_sendRawTransaction.
Instead of broadcasting to the global mempool, our proxy forwards it to the partner network for direct inclusion consideration by block builders.
A builder includes your transaction in a block. Once confirmed, it appears on-chain as normal.
If you have the transaction hash, you can retrieve it from the private pool with the regular eth_getTransactionByHash but only through the same Chainstack node endpoint you used to submit the transaction.Once the transaction is in the block, you can retrieve it using all regular methods, of course:
MEV protection is off on a new node until you enable it. The node’s Add-ons tab shows whether MEV protection is on: its card shows Active with a Disable button when it is enabled, and Enable when it is not.To enable MEV protection, open your node on Chainstack, select the Add-ons tab, click Enable on the MEV protection card, and complete the install. See Install a node add-on.To disable MEV protection, click Disable on the MEV protection card. The add-on is removed immediately, and your transactions route through the public mempool as usual. You can enable it again from the same tab.
