RPC method

eth_getProof on Arbitrum

Supported on SwiftNodes

Measured 2026-10-04 by our weekly probe, which calls eth_getProof through the same Arbitrum endpoint customers use.

What eth_getProof does

Returns an EIP-1186 Merkle proof for an account and selected storage slots, which a client can verify against the block's state root without trusting the RPC provider.

Example request

curl -s https://rpc.swiftnodes.io/rpc/arbitrum?key=YOUR_API_KEY \
  -X POST -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"eth_getProof","params":["0x0000000000000000000000000000000000000000",[],"latest"]}'
import { createPublicClient, http } from "viem";

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

// Any JSON-RPC method, typed loosely: eth_getProof on Arbitrum
const result = await client.request({
  method: "eth_getProof",
  params: ["0x0000000000000000000000000000000000000000",[],"latest"],
});

Other methods on Arbitrum

eth_getProof on other chains

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

Frequently asked questions

Does Arbitrum support eth_getProof?

Yes. eth_getProof answered correctly on the SwiftNodes Arbitrum endpoint in our weekly method probe (2026-10-04), which sends real requests through the customer path.

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

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