Get fee estimation

POST

https://xmr.nownodes.io/json_rpc

Authorizations

ApiKeyAuthApiKeyAuth

api-key string

NOWNodes API key passed in the api-key header.

Provides an estimation of transaction fees per byte.

Body

application/json

jsonrpcstring

idstring

methodstring

paramsobject

Show child attributes

grace_blocksinteger

Optional number of grace blocks

Response

200OK

Fee estimate retrieved successfully

400Bad Request

Bad Request - missing or invalid parameters

403Forbidden

Forbidden

404Not Found

Not Found

500Internal Server Error

Internal server error

Get fee estimation

curl -X POST 'https://xmr.nownodes.io/json_rpc' \
  -H 'Content-Type: application/json' \
  -d '{
    "jsonrpc": "2.0",
    "id": "0",
    "method": "get_fee_estimate",
    "params": {
      "grace_blocks": 0
    }
  }'

import { JsonRpcProvider } from "ethers";

const provider = new JsonRpcProvider("https://xmr.nownodes.io/json_rpc");
const result = await provider.send("get_fee_estimate", {
  "grace_blocks": 0
});
console.log(result);

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

uri = URI('https://xmr.nownodes.io/json_rpc')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
  "jsonrpc": "2.0",
  "method": "get_fee_estimate",
  "params": {
    "grace_blocks": 0
  },
  "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://xmr.nownodes.io/json_rpc"))
response = w3.provider.make_request("get_fee_estimate", {
  "grace_blocks": 0
})
print(response)

import { createPublicClient, http } from "viem";

const client = createPublicClient({
  transport: http("https://xmr.nownodes.io/json_rpc"),
});

const result = await client.request({
  method: "get_fee_estimate",
  params: {
  "grace_blocks": 0
},
});

console.log(result);

const endpoint = "https://xmr.nownodes.io/json_rpc";
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: "get_fee_estimate", params: {
  "grace_blocks": 0
}, id: 1 });
console.log(result);

const response = await fetch('https://xmr.nownodes.io/json_rpc', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
      "jsonrpc": "2.0",
      "id": "0",
      "method": "get_fee_estimate",
      "params": {
        "grace_blocks": 0
      }
    }),
});

const data = await response.json();

import requests

payload = {
  "jsonrpc": "2.0",
  "id": "0",
  "method": "get_fee_estimate",
  "params": {
    "grace_blocks": 0
  }
}

response = requests.post('https://xmr.nownodes.io/json_rpc', json=payload)
data = response.json()

require 'net/http'
require 'json'

uri = URI('https://xmr.nownodes.io/json_rpc')
request = Net::HTTP::Post.new(uri)
request['Content-Type'] = 'application/json'
request.body = '{
    "jsonrpc": "2.0",
    "id": "0",
    "method": "get_fee_estimate",
    "params": {
      "grace_blocks": 0
    }
  }'

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",
  "id": "0",
  "method": "get_fee_estimate",
  "params": {
    "grace_blocks": 0
  }
}

{
  "id": "0",
  "jsonrpc": "2.0",
  "result": {
    "credits": 0,
    "fee": 7874,
    "fees": [
      20000,
      80000,
      320000,
      4000000
    ],
    "quantization_mask": 10000,
    "status": "OK",
    "top_hash": "",
    "untrusted": false
  }
}

{
  "error": "Invalid request parameters"
}

Insufficient permissions

{
  "error": "Fee estimate not found"
}

{
  "error": "Internal server error"
}

Documentation

How to migrate to NOWNodes

Get fee estimation

Authorizations

Body

Response