eth_feeHistory

POST

https://sei-evm.nownodes.io/

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Returns fee market information for a range of blocks. This is typically used by wallets and other tools to estimate appropriate gas prices.

Body

application/json

jsonrpcstringrequired

methodstringrequired

paramsArray<string | integer | Array<number>>required

Parameters:

blockCount — number of blocks in the requested range.
newestBlock — highest block number in the requested range (can be "latest").
rewardPercentiles — list of percentile values to sample priority fees from each block (optional).

Show child attributes

Any of

string

integer

Array<number>

idintegerrequired

Response

200OK

JSON-RPC Response with fee history data

eth_feeHistory

curl -X POST 'https://sei-evm.nownodes.io/' \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc": "2.0",
    "method": "eth_feeHistory",
    "params": [
      "0x5",
      "latest",
      [
        10,
        50,
        90
      ]
    ],
    "id": 1
  }'

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider("https://sei-evm.nownodes.io/");
const result = await provider.send("eth_feeHistory", [
  "0x5",
  "latest",
  [
    10,
    50,
    90
  ]
]);
console.log(result);

require 'eth'
require 'json'
require 'net/http'

uri = URI('https://sei-evm.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
  "jsonrpc": "2.0",
  "method": "eth_feeHistory",
  "params": [
    "0x5",
    "latest",
    [
      10,
      50,
      90
    ]
  ],
  "id": 1
}'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
  http.request(request)
end

puts JSON.parse(response.body)

from web3 import Web3

w3 = Web3(Web3.HTTPProvider("https://sei-evm.nownodes.io/"))
response = w3.provider.make_request("eth_feeHistory", [
  "0x5",
  "latest",
  [
    10,
    50,
    90
  ]
])
print(response)

import { createPublicClient, http } from "viem";

const client = createPublicClient({
  transport: http("https://sei-evm.nownodes.io/"),
});

const result = await client.request({
  method: "eth_feeHistory",
  params: [
  "0x5",
  "latest",
  [
    10,
    50,
    90
  ]
],
});

console.log(result);

const endpoint = "https://sei-evm.nownodes.io/";
const apiKey = "YOUR_API_KEY";

async function nownodesRequest(payload) {
  const response = await fetch(endpoint, {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
      "api-key": apiKey,
    },
    body: JSON.stringify(payload),
  });

  return response.json();
}

const result = await nownodesRequest({ jsonrpc: "2.0", method: "eth_feeHistory", params: [
  "0x5",
  "latest",
  [
    10,
    50,
    90
  ]
], id: 1 });
console.log(result);

const response = await fetch('https://sei-evm.nownodes.io/', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "jsonrpc": "2.0",
      "method": "eth_feeHistory",
      "params": [
        "0x5",
        "latest",
        [
          10,
          50,
          90
        ]
      ],
      "id": 1
    }),
});

const data = await response.json();

import requests

payload = {
  "jsonrpc": "2.0",
  "method": "eth_feeHistory",
  "params": [
    "0x5",
    "latest",
    [
      10,
      50,
      90
    ]
  ],
  "id": 1
}

response = requests.post('https://sei-evm.nownodes.io/', json=payload)
data = response.json()

require 'net/http'
require 'json'

uri = URI('https://sei-evm.nownodes.io/')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "jsonrpc": "2.0",
    "method": "eth_feeHistory",
    "params": [
      "0x5",
      "latest",
      [
        10,
        50,
        90
      ]
    ],
    "id": 1
  }'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |http| http.request(request) }
data = JSON.parse(response.body)

Request Body

{
  "jsonrpc": "2.0",
  "method": "eth_feeHistory",
  "params": [
    "0x5",
    "latest",
    [
      10,
      50,
      90
    ]
  ],
  "id": 1
}

200

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "oldestBlock": "0x10d4f",
    "baseFeePerGas": [
      "0x1dcd65000"
    ],
    "gasUsedRatio": [
      0.85
    ],
    "reward": [
      [
        "0x59682f00"
      ]
    ]
  }
}

Documentation

How to migrate to NOWNodes

eth_feeHistory

Authorizations

Body

Response