rollup_gasPrices

Returns the L2 gas-price oracle data that Unichain uses to compute total fees. The payload mirrors Optimism Bedrock networks and includes:

• gasPrice — Total gas price Unichain applies to transactions.
• l1GasPrice — Current L1 gas price component applied to calldata.
• l2GasPrice — The execution gas component on Unichain itself.
• baseFeeScalar, blobBaseFeeScalar, overhead — Scalars used by the sequencer when combining L1/L2 costs.

Use this method when you must break down L1 calldata charges, size cross-chain deposits, or monitor Unichain fee dynamics beyond what eth_gasPrice exposes.

Parameters

This method accepts no parameters.

Returns

An object describing the current Unichain gas oracle state. Each field is returned as a hexadecimal string representing wei.

Implementation Example

cURL

curl -X POST https://api-unichain-mainnet.n.dwellir.com/YOUR_API_KEY \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "method": "rollup_gasPrices",
    "params": [],
    "id": 1
  }'

JavaScript

const response = await fetch('https://api-unichain-mainnet.n.dwellir.com/YOUR_API_KEY', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({
    jsonrpc: '2.0',
    method: 'rollup_gasPrices',
    params: [],
    id: 1
  })
});

const data = await response.json();
console.log(data.result);

Response Example

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "gasPrice": "0x9184e72a000",
    "l1GasPrice": "0x4a817c800",
    "l2GasPrice": "0x9184e72a",
    "baseFeeScalar": "0x1f4",
    "blobBaseFeeScalar": "0x0",
    "overhead": "0xaae60"
  }
}

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Need help? Contact our support team or check the Unichain documentation.