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Transaction Types

Sei supports most Ethereum transaction types. The one notable exception is blob transactions.

Supported Types

Not Supported

Blob Transactions

Sei runs the Pectra hardfork without blob transaction support. Attempting to send a type 3 transaction will be rejected at the RPC level. If you are porting code from Ethereum that uses blob transactions (e.g. rollup data availability), that path does not apply to Sei.

Sending Transactions

Standard library defaults work correctly. viem, wagmi, and ethers all default to type 2 (EIP-1559) transactions on chains that support it, which Sei does.