eth_createAccessList on zkSync Era

Measured 2026-10-04 by our weekly probe, which calls eth_createAccessList through the same zkSync Era endpoint customers use.

What eth_createAccessList does

Simulates a transaction and returns the EIP-2930 access list of addresses and storage keys it touches, plus the gas it would use with that list attached.

What to use instead on zkSync Era

zkSync Era did not serve eth_createAccessList in our probe. Send transactions without an access list; eth_estimateGas still gives you the gas figure.

Example request

curl -s https://rpc.swiftnodes.io/rpc/zksync?key=YOUR_API_KEY \
  -X POST -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"eth_createAccessList","params":[{"from":"0x0000000000000000000000000000000000000000","to":"0x0000000000000000000000000000000000000000","data":"0x"},"latest"]}'

import { createPublicClient, http } from "viem";

const client = createPublicClient({ transport: http("https://rpc.swiftnodes.io/rpc/zksync?key=YOUR_API_KEY") });

// Any JSON-RPC method, typed loosely: eth_createAccessList on zkSync Era
const result = await client.request({
  method: "eth_createAccessList",
  params: [{"from":"0x0000000000000000000000000000000000000000","to":"0x0000000000000000000000000000000000000000","data":"0x"},"latest"],
});

Other methods on zkSync Era

• eth_getLogsSupported
• eth_getBlockReceiptsSupported
• eth_feeHistorySupported
• eth_getProofNot available
• debug_traceCallSupported
• trace_blockNot available
• trace_transactionNot available

eth_createAccessList on other chains

Support differs by chain; the full measured table is on the eth_createAccessList reference.

• Ethereum
• Base
• Arbitrum
• Optimism
• Polygon
• BNB Smart Chain
• Avalanche
• Sonic
• Linea
• Scroll
• Blast
• Mantle
• Gnosis
• Celo
• Berachain
• Monad
• Unichain
• Kaia
• PulseChain

Frequently asked questions