RPC method

eth_createAccessList on Hyperliquid

Not available on SwiftNodes

Measured 2026-10-11 by our weekly probe, which calls eth_createAccessList through the same Hyperliquid 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 Hyperliquid

Hyperliquid 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/hyperliquid?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/hyperliquid?key=YOUR_API_KEY") });

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

Other methods on Hyperliquid

eth_createAccessList on other chains

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

Frequently asked questions

Does Hyperliquid support eth_createAccessList?

Not on our Hyperliquid upstreams: eth_createAccessList failed in our weekly method probe (2026-10-11). Hyperliquid did not serve eth_createAccessList in our probe. Send transactions without an access list; eth_estimateGas still gives you the gas figure.

Hyperliquid endpoints, live block height and WebSocket status are on the Hyperliquid RPC page.

One key covers every chain we serve, and SwiftNodes has a free tier.