get_fee_estimate - Monero

Example code for the get_fee_estimate JSON-RPC method. Complete guide on how to use get_fee_estimate JSON-RPC in GetBlock Web3 documentation.

This method returns the current per-byte fee estimate for transactions on the network, optionally for a specific priority level. Use it to size fees correctly before broadcasting a transaction.

Parameters

Parameter

Type

Required

Description

grace_blocks

unsigned int

Optional grace blocks (defaults to 0). Estimate accounts for fee changes expected within this many blocks

Request Example

curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "get_fee_estimate",
    "params": {},
    "id": "getblock.io"
}'

import requests
import json

url = "https://go.getblock.io/<ACCESS-TOKEN>/"

payload = json.dumps({
    "jsonrpc": "2.0",
    "method": "get_fee_estimate",
    "params": {},
    "id": "getblock.io"
})

headers = {
    'Content-Type': 'application/json'
}

response = requests.post(url, headers=headers, data=payload)
print(response.text)

use reqwest::Client;
use serde_json::json;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = Client::new();

    let payload = json!({
        "jsonrpc": "2.0",
        "method": "get_fee_estimate",
        "params": {},
        "id": "getblock.io"
});

    let response = client
        .post("https://go.getblock.io/<ACCESS-TOKEN>/")
        .header("Content-Type", "application/json")
        .json(&payload)
        .send()
        .await?;

    let result: serde_json::Value = response.json().await?;
    println!("{:#?}", result);

    Ok(())
}

Response Example

{
    "id": "getblock.io",
    "jsonrpc": "2.0",
    "result": {
        "fee": 187610,
        "fees": [
            20000,
            81700,
            408500,
            4085000
        ],
        "quantization_mask": 10000,
        "status": "OK",
        "untrusted": false
    }
}

Response Parameters

Field

Type

Description

result.fee

unsigned int

Per-byte fee in atomic units for normal priority

result.fees

array of unsigned int

Per-byte fees for [slow, normal, fast, fastest] priority levels

result.quantization_mask

unsigned int

Fees must be a multiple of this value

Use Cases

Sizing transaction fees before broadcast
Wallet UX showing recommended fee tiers
Mining pool fee oracle integration

Error Handling

Status Code

Error Message

Cause

404

Not found

Missing or invalid <ACCESS-TOKEN>

-32602

Invalid params

Request parameters are missing or malformed

429

Too Many Requests

Rate limit exceeded for your plan

SDK Integration

import monerojs from 'monero-javascript';

const daemon = await monerojs.connectToDaemonRpc('https://go.getblock.io/<ACCESS-TOKEN>/');

// Most methods are exposed directly on the daemon client. For raw access:
const result = await daemon.getDaemonConnection().sendJsonRequest('get_fee_estimate', {});
console.log(result);

from monero.backends.jsonrpc import JSONRPCDaemon
from monero.daemon import Daemon

backend = JSONRPCDaemon(host='go.getblock.io', port=443, path='/<ACCESS-TOKEN>/', protocol='https')
daemon = Daemon(backend)

# For methods covered by the typed API, use the daemon attribute directly.
# For raw RPC access:
result = backend.raw_request('get_fee_estimate', {})
print(result)

Previousget_connections - Monero Nextget_info - Monero

Last updated 12 days ago

Was this helpful?