Estimate a fee target.

GET

https://ethw-blockbook.nownodes.io/api/v2/estimatefee/{blocks}

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Returns backend fee estimation for the requested confirmation target.

Load estimate: Low; a small backend fee estimate lookup.

live-verified behavior:

Live capture (blocks=2): a wei-denominated gas-price-derived estimate serialized as a decimal ETHW string - fractional sub-gwei values are representable.

Parameters

blocksinteger>= 1requiredpath

Confirmation target in blocks.

conservativebooleantruequery

Use conservative smart fee estimation where supported.

Response

200OK

Decimal fee estimate in chain base currency.

401Unauthorized

Missing or invalid API key (plain text).

Estimate a fee target.

curl -X GET 'https://ethw-blockbook.nownodes.io/api/v2/estimatefee/{blocks}'

const response = await fetch('https://ethw-blockbook.nownodes.io/api/v2/estimatefee/{blocks}', {
  method: 'GET',
});

const data = await response.json();

require 'net/http'
require 'json'

uri = URI('https://ethw-blockbook.nownodes.io/api/v2/estimatefee/{blocks}')
request = Net::HTTP::Get.new(uri)

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

import requests

response = requests.get('https://ethw-blockbook.nownodes.io/api/v2/estimatefee/{blocks}')
data = response.json()

const response = await fetch('https://ethw-blockbook.nownodes.io/api/v2/estimatefee/{blocks}', {
  method: 'GET',
});

const data = await response.json();

const endpoint = "https://ethw-blockbook.nownodes.io/api/v2/estimatefee/{blocks}";
const apiKey = "YOUR_API_KEY";

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

  return response.json();
}

const result = await nownodesRequest({});
console.log(result);

const response = await fetch('https://ethw-blockbook.nownodes.io/api/v2/estimatefee/{blocks}', {
  method: 'GET',
});

const data = await response.json();

import requests

response = requests.get('https://ethw-blockbook.nownodes.io/api/v2/estimatefee/{blocks}')
data = response.json()

require 'net/http'
require 'json'

uri = URI('https://ethw-blockbook.nownodes.io/api/v2/estimatefee/{blocks}')
request = Net::HTTP::Get.new(uri)

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

{
  "result": "0.000000001086002818"
}

Unknown API_key