eth_feeHistory

Returns fee history for a range of blocks.

Parameters

See Ethereum JSON-RPC spec for parameters of eth_feeHistory.

Examples

cURL

curl -X POST https://api-chiliz-mainnet-archive.n.dwellir.com/YOUR_API_KEY \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "method": "eth_feeHistory",
    "params": [
      "0x10",
      "latest",
      [25, 50, 75]
    ],
    "id": 1
  }'

Ethers.js v6

import { JsonRpcProvider } from 'ethers';

const provider = new JsonRpcProvider(
  'https://api-chiliz-mainnet-archive.n.dwellir.com/YOUR_API_KEY'
);

// Get fee history
const feeHistory = await provider.send('eth_feeHistory', [
  '0x10', // 16 blocks
  'latest',
  [25, 50, 75] // 25th, 50th, 75th percentiles
]);
console.log('Fee history:', feeHistory);

Viem

import { createPublicClient, http, defineChain } from 'viem';

const chiliz = defineChain({
  id: 88888,
  name: 'Chiliz',
  nativeCurrency: {
    decimals: 18,
    name: 'CHZ',
    symbol: 'CHZ',
  },
  rpcUrls: {
    default: {
      http: ['https://api-chiliz-mainnet-archive.n.dwellir.com/YOUR_API_KEY'],
    },
  },
  blockExplorers: {
    default: { name: 'ChilizScan', url: 'https://chiliscan.com' },
  },
});

const client = createPublicClient({
  chain: chiliz,
  transport: http('https://api-chiliz-mainnet-archive.n.dwellir.com/YOUR_API_KEY'),
});

// Get fee history
const feeHistory = await client.getFeeHistory({
  blockCount: 16,
  rewardPercentiles: [25, 50, 75],
});
console.log('Fee history:', feeHistory);

web3.py

from web3 import Web3

w3 = Web3(Web3.HTTPProvider(
  'https://api-chiliz-mainnet-archive.n.dwellir.com/YOUR_API_KEY'
))

# Get fee history
fee_history = w3.eth.fee_history(
    block_count=16,
    newest_block='latest',
    reward_percentiles=[25, 50, 75]
)
print(f"Fee history: {fee_history}")

Response

Returns fee history with base fee and priority fee percentiles. Common error responses:

• {"code": -32700, "message": "Parse error"} - Invalid JSON
• {"code": -32602, "message": "Invalid params"} - Invalid parameters
• {"code": -32603, "message": "Internal error"} - Server error