Alchemy TransactPrivate Transactions

eth_sendPrivateTransaction

Send a single private transaction through Flashbots. Private transactions are sent directly to validators and not included in the public mempool.

Path parameters

apiKeystringRequired

Request

This endpoint expects an object.
txstringRequiredformat: "^0x[0-9a-fA-F]*$"

Raw, signed transaction.

maxBlockNumberstringOptionalformat: "^0[xX]([1-9A-Fa-f]+[0-9A-Fa-f]*|0)$"Defaults to 0x2540BE400

Hex-encoded number for the highest block number in which the transaction should be included.

preferencesobjectOptional

Transaction preferences.

Response

Returns the transaction hash (32-byte hex string).