Child Address Network Fee
curl --request POST \
--url https://api.blockradar.co/v1/wallets/{walletId}/addresses/{addressId}/withdraw/network-fee \
--header 'Content-Type: application/json' \
--header 'x-api-key: <api-key>' \
--data '
{
"assets": [
{
"address": "0xRecipient1Address",
"amount": "10.5",
"id": "{{assetId1}}"
},
{
"address": "0xRecipient2Address",
"amount": "25.0",
"id": "{{assetId2}}"
}
]
}
'import requests
url = "https://api.blockradar.co/v1/wallets/{walletId}/addresses/{addressId}/withdraw/network-fee"
payload = { "assets": [
{
"address": "0xRecipient1Address",
"amount": "10.5",
"id": "{{assetId1}}"
},
{
"address": "0xRecipient2Address",
"amount": "25.0",
"id": "{{assetId2}}"
}
] }
headers = {
"x-api-key": "<api-key>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {'x-api-key': '<api-key>', 'Content-Type': 'application/json'},
body: JSON.stringify({
assets: [
{address: '0xRecipient1Address', amount: '10.5', id: '{{assetId1}}'},
{address: '0xRecipient2Address', amount: '25.0', id: '{{assetId2}}'}
]
})
};
fetch('https://api.blockradar.co/v1/wallets/{walletId}/addresses/{addressId}/withdraw/network-fee', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.blockradar.co/v1/wallets/{walletId}/addresses/{addressId}/withdraw/network-fee",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'assets' => [
[
'address' => '0xRecipient1Address',
'amount' => '10.5',
'id' => '{{assetId1}}'
],
[
'address' => '0xRecipient2Address',
'amount' => '25.0',
'id' => '{{assetId2}}'
]
]
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json",
"x-api-key: <api-key>"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.blockradar.co/v1/wallets/{walletId}/addresses/{addressId}/withdraw/network-fee"
payload := strings.NewReader("{\n \"assets\": [\n {\n \"address\": \"0xRecipient1Address\",\n \"amount\": \"10.5\",\n \"id\": \"{{assetId1}}\"\n },\n {\n \"address\": \"0xRecipient2Address\",\n \"amount\": \"25.0\",\n \"id\": \"{{assetId2}}\"\n }\n ]\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("x-api-key", "<api-key>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.blockradar.co/v1/wallets/{walletId}/addresses/{addressId}/withdraw/network-fee")
.header("x-api-key", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"assets\": [\n {\n \"address\": \"0xRecipient1Address\",\n \"amount\": \"10.5\",\n \"id\": \"{{assetId1}}\"\n },\n {\n \"address\": \"0xRecipient2Address\",\n \"amount\": \"25.0\",\n \"id\": \"{{assetId2}}\"\n }\n ]\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.blockradar.co/v1/wallets/{walletId}/addresses/{addressId}/withdraw/network-fee")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["x-api-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"assets\": [\n {\n \"address\": \"0xRecipient1Address\",\n \"amount\": \"10.5\",\n \"id\": \"{{assetId1}}\"\n },\n {\n \"address\": \"0xRecipient2Address\",\n \"amount\": \"25.0\",\n \"id\": \"{{assetId2}}\"\n }\n ]\n}"
response = http.request(request)
puts response.read_body{
"data": {
"nativeBalance": "0.04998428208321722",
"networkFee": "0.000000021112014"
},
"message": "Network fee fetched successfully",
"statusCode": 200
}Child Address Network Fee
This endpoint is used to calculate the network fee for a withdrawal from a specific address.
Body Parameters
| Key | Required | Type | Description |
|---|---|---|---|
| assetId | true* | string (UUID) | The ID of the asset to withdraw. Required if assets array is not provided. |
| address | true* | string | The destination wallet address for the withdrawal. Required if assets array is not provided. |
| amount | true* | string | The withdrawal amount. Must be greater than 0. Required if assets array is not provided. |
| reference | false | string | An optional reference note for the withdrawal. |
| note | false | string | A short message or internal remark to associate with this withdrawal. On Stellar and Solana it is attached to the transaction as the on-chain memo (an all-digit note becomes a Stellar memo ID; Stellar text memos are limited to 28 bytes) — see On-chain Memos. Not visible on-chain elsewhere. |
| metadata | false | object | Optional metadata (key-value pairs) for additional transaction details. |
POST
/
v1
/
wallets
/
{walletId}
/
addresses
/
{addressId}
/
withdraw
/
network-fee
Child Address Network Fee
curl --request POST \
--url https://api.blockradar.co/v1/wallets/{walletId}/addresses/{addressId}/withdraw/network-fee \
--header 'Content-Type: application/json' \
--header 'x-api-key: <api-key>' \
--data '
{
"assets": [
{
"address": "0xRecipient1Address",
"amount": "10.5",
"id": "{{assetId1}}"
},
{
"address": "0xRecipient2Address",
"amount": "25.0",
"id": "{{assetId2}}"
}
]
}
'import requests
url = "https://api.blockradar.co/v1/wallets/{walletId}/addresses/{addressId}/withdraw/network-fee"
payload = { "assets": [
{
"address": "0xRecipient1Address",
"amount": "10.5",
"id": "{{assetId1}}"
},
{
"address": "0xRecipient2Address",
"amount": "25.0",
"id": "{{assetId2}}"
}
] }
headers = {
"x-api-key": "<api-key>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {'x-api-key': '<api-key>', 'Content-Type': 'application/json'},
body: JSON.stringify({
assets: [
{address: '0xRecipient1Address', amount: '10.5', id: '{{assetId1}}'},
{address: '0xRecipient2Address', amount: '25.0', id: '{{assetId2}}'}
]
})
};
fetch('https://api.blockradar.co/v1/wallets/{walletId}/addresses/{addressId}/withdraw/network-fee', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.blockradar.co/v1/wallets/{walletId}/addresses/{addressId}/withdraw/network-fee",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'assets' => [
[
'address' => '0xRecipient1Address',
'amount' => '10.5',
'id' => '{{assetId1}}'
],
[
'address' => '0xRecipient2Address',
'amount' => '25.0',
'id' => '{{assetId2}}'
]
]
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json",
"x-api-key: <api-key>"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.blockradar.co/v1/wallets/{walletId}/addresses/{addressId}/withdraw/network-fee"
payload := strings.NewReader("{\n \"assets\": [\n {\n \"address\": \"0xRecipient1Address\",\n \"amount\": \"10.5\",\n \"id\": \"{{assetId1}}\"\n },\n {\n \"address\": \"0xRecipient2Address\",\n \"amount\": \"25.0\",\n \"id\": \"{{assetId2}}\"\n }\n ]\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("x-api-key", "<api-key>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.blockradar.co/v1/wallets/{walletId}/addresses/{addressId}/withdraw/network-fee")
.header("x-api-key", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"assets\": [\n {\n \"address\": \"0xRecipient1Address\",\n \"amount\": \"10.5\",\n \"id\": \"{{assetId1}}\"\n },\n {\n \"address\": \"0xRecipient2Address\",\n \"amount\": \"25.0\",\n \"id\": \"{{assetId2}}\"\n }\n ]\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.blockradar.co/v1/wallets/{walletId}/addresses/{addressId}/withdraw/network-fee")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["x-api-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"assets\": [\n {\n \"address\": \"0xRecipient1Address\",\n \"amount\": \"10.5\",\n \"id\": \"{{assetId1}}\"\n },\n {\n \"address\": \"0xRecipient2Address\",\n \"amount\": \"25.0\",\n \"id\": \"{{assetId2}}\"\n }\n ]\n}"
response = http.request(request)
puts response.read_body{
"data": {
"nativeBalance": "0.04998428208321722",
"networkFee": "0.000000021112014"
},
"message": "Network fee fetched successfully",
"statusCode": 200
}Batch Operations
This endpoint supports batch operations, allowing you to estimate network fees for multiple withdrawal operations from a specific child address in a single API call.Batch Request Format
To estimate fees for multiple withdrawals, use theassets array:
{
"assets": [
{
"id": "asset-uuid-1",
"address": "0xRecipient1...",
"amount": "100"
},
{
"id": "asset-uuid-2",
"address": "0xRecipient2...",
"amount": "50"
}
]
}
Batch Response Format
Returns individual fees plus totals:{
"message": "Network fee fetched successfully",
"statusCode": 200,
"data": {
"fees": [
{
"index": 0,
"assetId": "asset-uuid-1",
"address": "0xRecipient1...",
"amount": "100",
"networkFee": "0.00001247904",
"transactionFee": "0",
"estimatedArrivalTime": 30
},
{
"index": 1,
"assetId": "asset-uuid-2",
"address": "0xRecipient2...",
"amount": "50",
"networkFee": "0.00000504",
"transactionFee": "0",
"estimatedArrivalTime": 30
}
],
"totalNetworkFee": "0.00001751904",
"totalNetworkFeeInUSD": "0.0158202186912",
"totalTransactionFee": "0",
"nativeBalance": "0.073690520542044578",
"nativeBalanceInUSD": "66.54",
"estimatedArrivalTime": 60,
"errors": []
}
}
Response Fields
| Field | Description |
|---|---|
| fees | Array of individual fee estimates per withdrawal |
| totalNetworkFee | Sum of all network fees |
| totalNetworkFeeInUSD | Total network fee in USD |
| totalTransactionFee | Sum of all transaction fees |
| nativeBalance | Current native token balance |
| estimatedArrivalTime | Total time (sum of individual times, 30s each) |
| errors | Array of any failed estimations |
Validation Rules
| Rule | Value |
|---|---|
| Max batch size | 20 operations |
| Min batch size | 1 operation |
Use Cases
- Multi-recipient withdrawal: Estimate fees for sending to multiple addresses
- Bulk payouts: Calculate total cost for batch payment operations
- Budget planning: Plan withdrawal operations with accurate fee estimates
Authorizations
Path Parameters
Example:
"YOUR_WALLET_ID"
Example:
"ADDRESS_ID"
Body
application/json
The destination wallet address used for fee estimation. Stellar accepts classic (G...), muxed (M...), and Soroban contract (C...) recipients. Contract recipients are valid for token assets only, not native XLM.
Show child attributes
Show child attributes
Example:
[
{
"address": "0xRecipient1Address",
"amount": "10.5",
"id": "{{assetId1}}"
},
{
"address": "0xRecipient2Address",
"amount": "25.0",
"id": "{{assetId2}}"
}
]