Child Address Get Quote
curl --request POST \
--url https://api.blockradar.co/v2/wallets/{walletId}/addresses/{addressId}/withdraw/fiat/quote \
--header 'Content-Type: application/json' \
--header 'x-api-key: <api-key>' \
--data '
{
"sessionId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"paymentMethod": "bank_transfer",
"customerId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"assetId": "ae455f23-3824-4125-baab-d158315cbcbd",
"amount": "100.00",
"amountSide": "source",
"currency": "NGN",
"paymentMethodData": {
"accountNumber": "0123456789",
"accountName": "Ada Okafor",
"bankCode": "999"
},
"isGaslessWithdraw": false,
"provider": "example-provider"
}
'import requests
url = "https://api.blockradar.co/v2/wallets/{walletId}/addresses/{addressId}/withdraw/fiat/quote"
payload = {
"sessionId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"paymentMethod": "bank_transfer",
"customerId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"assetId": "ae455f23-3824-4125-baab-d158315cbcbd",
"amount": "100.00",
"amountSide": "source",
"currency": "NGN",
"paymentMethodData": {
"accountNumber": "0123456789",
"accountName": "Ada Okafor",
"bankCode": "999"
},
"isGaslessWithdraw": False,
"provider": "example-provider"
}
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({
sessionId: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
paymentMethod: 'bank_transfer',
customerId: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
assetId: 'ae455f23-3824-4125-baab-d158315cbcbd',
amount: '100.00',
amountSide: 'source',
currency: 'NGN',
paymentMethodData: {accountNumber: '0123456789', accountName: 'Ada Okafor', bankCode: '999'},
isGaslessWithdraw: false,
provider: 'example-provider'
})
};
fetch('https://api.blockradar.co/v2/wallets/{walletId}/addresses/{addressId}/withdraw/fiat/quote', 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/v2/wallets/{walletId}/addresses/{addressId}/withdraw/fiat/quote",
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([
'sessionId' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
'paymentMethod' => 'bank_transfer',
'customerId' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
'assetId' => 'ae455f23-3824-4125-baab-d158315cbcbd',
'amount' => '100.00',
'amountSide' => 'source',
'currency' => 'NGN',
'paymentMethodData' => [
'accountNumber' => '0123456789',
'accountName' => 'Ada Okafor',
'bankCode' => '999'
],
'isGaslessWithdraw' => false,
'provider' => 'example-provider'
]),
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/v2/wallets/{walletId}/addresses/{addressId}/withdraw/fiat/quote"
payload := strings.NewReader("{\n \"sessionId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"paymentMethod\": \"bank_transfer\",\n \"customerId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"assetId\": \"ae455f23-3824-4125-baab-d158315cbcbd\",\n \"amount\": \"100.00\",\n \"amountSide\": \"source\",\n \"currency\": \"NGN\",\n \"paymentMethodData\": {\n \"accountNumber\": \"0123456789\",\n \"accountName\": \"Ada Okafor\",\n \"bankCode\": \"999\"\n },\n \"isGaslessWithdraw\": false,\n \"provider\": \"example-provider\"\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/v2/wallets/{walletId}/addresses/{addressId}/withdraw/fiat/quote")
.header("x-api-key", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"sessionId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"paymentMethod\": \"bank_transfer\",\n \"customerId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"assetId\": \"ae455f23-3824-4125-baab-d158315cbcbd\",\n \"amount\": \"100.00\",\n \"amountSide\": \"source\",\n \"currency\": \"NGN\",\n \"paymentMethodData\": {\n \"accountNumber\": \"0123456789\",\n \"accountName\": \"Ada Okafor\",\n \"bankCode\": \"999\"\n },\n \"isGaslessWithdraw\": false,\n \"provider\": \"example-provider\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.blockradar.co/v2/wallets/{walletId}/addresses/{addressId}/withdraw/fiat/quote")
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 \"sessionId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"paymentMethod\": \"bank_transfer\",\n \"customerId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"assetId\": \"ae455f23-3824-4125-baab-d158315cbcbd\",\n \"amount\": \"100.00\",\n \"amountSide\": \"source\",\n \"currency\": \"NGN\",\n \"paymentMethodData\": {\n \"accountNumber\": \"0123456789\",\n \"accountName\": \"Ada Okafor\",\n \"bankCode\": \"999\"\n },\n \"isGaslessWithdraw\": false,\n \"provider\": \"example-provider\"\n}"
response = http.request(request)
puts response.read_body{
"message": "Successful",
"data": {
"debitAmount": "100.00",
"minAmount": "10.00",
"networkFee": "0.00006779052",
"networkFeeInUSD": "0.14",
"estimatedArrivalTime": 60,
"transactionFee": "1.50",
"nativeBalance": "0.000929309612767174",
"nativeBalanceInUSD": "1.97",
"amountFiat": "152675.00",
"deductions": []
},
"status": true
}{
"statusCode": 123,
"message": "<string>",
"details": {
"code": "CUSTOMER_ONBOARDING_REQUIRED",
"customerId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"provider": {
"id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"slug": "<string>",
"name": "<string>"
},
"onboarding": {
"caseId": "<string>",
"status": "<string>",
"providerStatus": "<string>",
"action": {
"type": "create_case",
"method": "POST",
"path": "/v1/customers/18d2f159-e0cd-4a45-b735-e9dfe0f7520a/onboarding-requests",
"body": {
"provider": "<string>",
"type": "onramp"
}
}
}
},
"requestId": "<string>"
}{
"statusCode": 123,
"message": "<string>",
"details": {
"code": "CUSTOMER_ONBOARDING_REQUIRED",
"customerId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"provider": {
"id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"slug": "<string>",
"name": "<string>"
},
"onboarding": {
"caseId": "<string>",
"status": "<string>",
"providerStatus": "<string>",
"action": {
"type": "create_case",
"method": "POST",
"path": "/v1/customers/18d2f159-e0cd-4a45-b735-e9dfe0f7520a/onboarding-requests",
"body": {
"provider": "<string>",
"type": "onramp"
}
}
}
},
"requestId": "<string>"
}{
"statusCode": 123,
"message": "<string>",
"details": {
"code": "CUSTOMER_ONBOARDING_REQUIRED",
"customerId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"provider": {
"id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"slug": "<string>",
"name": "<string>"
},
"onboarding": {
"caseId": "<string>",
"status": "<string>",
"providerStatus": "<string>",
"action": {
"type": "create_case",
"method": "POST",
"path": "/v1/customers/18d2f159-e0cd-4a45-b735-e9dfe0f7520a/onboarding-requests",
"body": {
"provider": "<string>",
"type": "onramp"
}
}
}
},
"requestId": "<string>"
}v2
Child Address Get Quote
For customer-owned withdrawals, provide customerId when starting the flow; subsequent requests inherit it from sessionId. Changing identity requires a new rates request. Customer eligibility failures use the HTTP error details contract. See Customer fiat flows.
POST
/
v2
/
wallets
/
{walletId}
/
addresses
/
{addressId}
/
withdraw
/
fiat
/
quote
Child Address Get Quote
curl --request POST \
--url https://api.blockradar.co/v2/wallets/{walletId}/addresses/{addressId}/withdraw/fiat/quote \
--header 'Content-Type: application/json' \
--header 'x-api-key: <api-key>' \
--data '
{
"sessionId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"paymentMethod": "bank_transfer",
"customerId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"assetId": "ae455f23-3824-4125-baab-d158315cbcbd",
"amount": "100.00",
"amountSide": "source",
"currency": "NGN",
"paymentMethodData": {
"accountNumber": "0123456789",
"accountName": "Ada Okafor",
"bankCode": "999"
},
"isGaslessWithdraw": false,
"provider": "example-provider"
}
'import requests
url = "https://api.blockradar.co/v2/wallets/{walletId}/addresses/{addressId}/withdraw/fiat/quote"
payload = {
"sessionId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"paymentMethod": "bank_transfer",
"customerId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"assetId": "ae455f23-3824-4125-baab-d158315cbcbd",
"amount": "100.00",
"amountSide": "source",
"currency": "NGN",
"paymentMethodData": {
"accountNumber": "0123456789",
"accountName": "Ada Okafor",
"bankCode": "999"
},
"isGaslessWithdraw": False,
"provider": "example-provider"
}
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({
sessionId: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
paymentMethod: 'bank_transfer',
customerId: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
assetId: 'ae455f23-3824-4125-baab-d158315cbcbd',
amount: '100.00',
amountSide: 'source',
currency: 'NGN',
paymentMethodData: {accountNumber: '0123456789', accountName: 'Ada Okafor', bankCode: '999'},
isGaslessWithdraw: false,
provider: 'example-provider'
})
};
fetch('https://api.blockradar.co/v2/wallets/{walletId}/addresses/{addressId}/withdraw/fiat/quote', 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/v2/wallets/{walletId}/addresses/{addressId}/withdraw/fiat/quote",
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([
'sessionId' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
'paymentMethod' => 'bank_transfer',
'customerId' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
'assetId' => 'ae455f23-3824-4125-baab-d158315cbcbd',
'amount' => '100.00',
'amountSide' => 'source',
'currency' => 'NGN',
'paymentMethodData' => [
'accountNumber' => '0123456789',
'accountName' => 'Ada Okafor',
'bankCode' => '999'
],
'isGaslessWithdraw' => false,
'provider' => 'example-provider'
]),
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/v2/wallets/{walletId}/addresses/{addressId}/withdraw/fiat/quote"
payload := strings.NewReader("{\n \"sessionId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"paymentMethod\": \"bank_transfer\",\n \"customerId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"assetId\": \"ae455f23-3824-4125-baab-d158315cbcbd\",\n \"amount\": \"100.00\",\n \"amountSide\": \"source\",\n \"currency\": \"NGN\",\n \"paymentMethodData\": {\n \"accountNumber\": \"0123456789\",\n \"accountName\": \"Ada Okafor\",\n \"bankCode\": \"999\"\n },\n \"isGaslessWithdraw\": false,\n \"provider\": \"example-provider\"\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/v2/wallets/{walletId}/addresses/{addressId}/withdraw/fiat/quote")
.header("x-api-key", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"sessionId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"paymentMethod\": \"bank_transfer\",\n \"customerId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"assetId\": \"ae455f23-3824-4125-baab-d158315cbcbd\",\n \"amount\": \"100.00\",\n \"amountSide\": \"source\",\n \"currency\": \"NGN\",\n \"paymentMethodData\": {\n \"accountNumber\": \"0123456789\",\n \"accountName\": \"Ada Okafor\",\n \"bankCode\": \"999\"\n },\n \"isGaslessWithdraw\": false,\n \"provider\": \"example-provider\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.blockradar.co/v2/wallets/{walletId}/addresses/{addressId}/withdraw/fiat/quote")
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 \"sessionId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"paymentMethod\": \"bank_transfer\",\n \"customerId\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n \"assetId\": \"ae455f23-3824-4125-baab-d158315cbcbd\",\n \"amount\": \"100.00\",\n \"amountSide\": \"source\",\n \"currency\": \"NGN\",\n \"paymentMethodData\": {\n \"accountNumber\": \"0123456789\",\n \"accountName\": \"Ada Okafor\",\n \"bankCode\": \"999\"\n },\n \"isGaslessWithdraw\": false,\n \"provider\": \"example-provider\"\n}"
response = http.request(request)
puts response.read_body{
"message": "Successful",
"data": {
"debitAmount": "100.00",
"minAmount": "10.00",
"networkFee": "0.00006779052",
"networkFeeInUSD": "0.14",
"estimatedArrivalTime": 60,
"transactionFee": "1.50",
"nativeBalance": "0.000929309612767174",
"nativeBalanceInUSD": "1.97",
"amountFiat": "152675.00",
"deductions": []
},
"status": true
}{
"statusCode": 123,
"message": "<string>",
"details": {
"code": "CUSTOMER_ONBOARDING_REQUIRED",
"customerId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"provider": {
"id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"slug": "<string>",
"name": "<string>"
},
"onboarding": {
"caseId": "<string>",
"status": "<string>",
"providerStatus": "<string>",
"action": {
"type": "create_case",
"method": "POST",
"path": "/v1/customers/18d2f159-e0cd-4a45-b735-e9dfe0f7520a/onboarding-requests",
"body": {
"provider": "<string>",
"type": "onramp"
}
}
}
},
"requestId": "<string>"
}{
"statusCode": 123,
"message": "<string>",
"details": {
"code": "CUSTOMER_ONBOARDING_REQUIRED",
"customerId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"provider": {
"id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"slug": "<string>",
"name": "<string>"
},
"onboarding": {
"caseId": "<string>",
"status": "<string>",
"providerStatus": "<string>",
"action": {
"type": "create_case",
"method": "POST",
"path": "/v1/customers/18d2f159-e0cd-4a45-b735-e9dfe0f7520a/onboarding-requests",
"body": {
"provider": "<string>",
"type": "onramp"
}
}
}
},
"requestId": "<string>"
}{
"statusCode": 123,
"message": "<string>",
"details": {
"code": "CUSTOMER_ONBOARDING_REQUIRED",
"customerId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"provider": {
"id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"slug": "<string>",
"name": "<string>"
},
"onboarding": {
"caseId": "<string>",
"status": "<string>",
"providerStatus": "<string>",
"action": {
"type": "create_case",
"method": "POST",
"path": "/v1/customers/18d2f159-e0cd-4a45-b735-e9dfe0f7520a/onboarding-requests",
"body": {
"provider": "<string>",
"type": "onramp"
}
}
}
},
"requestId": "<string>"
}For customer identity, session binding, onboarding recovery and fee semantics, see Customer fiat flows.
Authorizations
Path Parameters
Wallet identifier.
Child address identifier.
Body
application/json
- Option 1
- Option 2
Supply sessionId, or all original routing fields. Repeated fields must match the session. Customer identity is inherited from the session.
Session ID returned by the v2 rates endpoint.
Payment-method id returned by discovery.
Example:
"bank_transfer"
ID of an existing active customer owned by the authenticated business.
Stablecoin asset identifier.
Example:
"ae455f23-3824-4125-baab-d158315cbcbd"
Amount as a decimal string. Interpreted as the stablecoin amount to send or the fiat amount to deliver, depending on amountSide.
Pattern:
^\d+(\.\d+)?$Example:
"100.00"
source fixes the total source-asset budget, with fees allocated inside it; target fixes the fiat payout before beneficiary deductions and derives the required source debit.
Available options:
source, target ISO 4217 payout currency.
Required string length:
3Example:
"NGN"
Values validated against the payment-method requirements schema.
Example:
{
"accountNumber": "0123456789",
"accountName": "Ada Okafor",
"bankCode": "999"
}
Whether Blockradar should sponsor the on-chain gas where supported.
Example:
false
Optional provider slug. Omit for automatic routing.
Example:
"example-provider"
Completed payment-method resolution, including the provider resolutionId. Required when the provider returned a resolution session. Complete every nextStep before quoting or executing.
Show child attributes
Show child attributes