The private transactions endpoints allow you to send and cancel private transactions to help avoid front-running, sandwich attacks, and other arbitrage on your transactions.
Chains Supported
| Method | Description | Ethereum | Polygon | Arbitrum | Optimism | Astar | Solana |
|---|---|---|---|---|---|---|---|
| eth_sendPrivateTransaction | Send a single private transaction through Flashbots. Private transactions are sent directly to miners and are not included in the public mempool. | Mainnet only | Unsupported | Unsupported | Unsupported | Unsupported | Unsupported |
| eth_cancelPrivateTransaction | Request to cancel private transactions on Ethereum that are sent via eth_sendPrivateTransaction. | Mainnet only | Unsupported | Unsupported | Unsupported | Unsupported | Unsupported |