RPC method

eth_gasPrice on opBNB

Supported on SwiftNodes

Everything below was measured on 2026-10-13 by calling eth_gasPrice on opBNB through the same endpoint customers use, and is re-measured weekly.

What eth_gasPrice does

Returns the node's suggested gas price in wei for a legacy (type 0) transaction. On EIP-1559 chains it is usually the current base fee plus a suggested tip, which can sit well above what transactions actually pay.

eth_gasPrice on opBNB: what we measured

eth_gasPrice	0.00100 gwei
Base fee of the latest block	0 wei
eth_maxPriorityFeePerGas	0.00100 gwei
Median tip paid (last 20 blocks)	1 wei

Should you use it?

eth_gasPrice suggested 0.00100 gwei, but the base fee plus the median tip actually paid came to 1 wei. A legacy transaction priced with eth_gasPrice pays about 1000000.0 times what it needs to. Send EIP-1559 transactions with the tip taken from eth_feeHistory.

Example request

curl -s https://rpc.swiftnodes.io/rpc/opbnb?key=YOUR_API_KEY \
  -X POST -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"eth_gasPrice","params":[]}'

import { createPublicClient, http } from "viem";

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

const gasPrice = await client.getGasPrice(); // legacy price, wei

// EIP-1559 fees from recent blocks instead of the suggestion
const { baseFeePerGas, reward } = await client.getFeeHistory({ blockCount: 20, rewardPercentiles: [50] });
const tips = reward!.map((r) => r[0]).sort((a, b) => (a < b ? -1 : a > b ? 1 : 0));
const maxPriorityFeePerGas = tips[10];
const maxFeePerGas = baseFeePerGas.at(-1)! * 2n + maxPriorityFeePerGas;

Other methods on opBNB

eth_gasPrice on other chains

Frequently asked questions

Does opBNB support eth_gasPrice?

Yes. eth_gasPrice answered on the SwiftNodes opBNB endpoint when our weekly probe called it through the customer path (2026-10-13).

What is the gas price on opBNB?

eth_gasPrice returned 0.00100 gwei on 2026-10-13, with a base fee of 0 wei. Live values are on our opBNB gas page.

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

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