curl --request POST \
  --url https://api.blockradar.co/v1/wallets/{walletId}/withdraw/fiat/execute \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "reference": "client-reference-value",
  "accountIdentifier": "8034007516",
  "amount": 1000,
  "assetId": "a79270bf-5a79-4bdc-8fef-586bfcff6e9f",
  "code": "445223",
  "currency": "NGN",
  "institutionIdentifier": "OPAYNGPC"
}
'

import requests

url = "https://api.blockradar.co/v1/wallets/{walletId}/withdraw/fiat/execute"

payload = {
    "reference": "client-reference-value",
    "accountIdentifier": "8034007516",
    "amount": 1000,
    "assetId": "a79270bf-5a79-4bdc-8fef-586bfcff6e9f",
    "code": "445223",
    "currency": "NGN",
    "institutionIdentifier": "OPAYNGPC"
}
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({
    reference: 'client-reference-value',
    accountIdentifier: '8034007516',
    amount: 1000,
    assetId: 'a79270bf-5a79-4bdc-8fef-586bfcff6e9f',
    code: '445223',
    currency: 'NGN',
    institutionIdentifier: 'OPAYNGPC'
  })
};

fetch('https://api.blockradar.co/v1/wallets/{walletId}/withdraw/fiat/execute', 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}/withdraw/fiat/execute",
  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([
    'reference' => 'client-reference-value',
    'accountIdentifier' => '8034007516',
    'amount' => 1000,
    'assetId' => 'a79270bf-5a79-4bdc-8fef-586bfcff6e9f',
    'code' => '445223',
    'currency' => 'NGN',
    'institutionIdentifier' => 'OPAYNGPC'
  ]),
  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}/withdraw/fiat/execute"

	payload := strings.NewReader("{\n  \"reference\": \"client-reference-value\",\n  \"accountIdentifier\": \"8034007516\",\n  \"amount\": 1000,\n  \"assetId\": \"a79270bf-5a79-4bdc-8fef-586bfcff6e9f\",\n  \"code\": \"445223\",\n  \"currency\": \"NGN\",\n  \"institutionIdentifier\": \"OPAYNGPC\"\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}/withdraw/fiat/execute")
  .header("x-api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"reference\": \"client-reference-value\",\n  \"accountIdentifier\": \"8034007516\",\n  \"amount\": 1000,\n  \"assetId\": \"a79270bf-5a79-4bdc-8fef-586bfcff6e9f\",\n  \"code\": \"445223\",\n  \"currency\": \"NGN\",\n  \"institutionIdentifier\": \"OPAYNGPC\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.blockradar.co/v1/wallets/{walletId}/withdraw/fiat/execute")

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  \"reference\": \"client-reference-value\",\n  \"accountIdentifier\": \"8034007516\",\n  \"amount\": 1000,\n  \"assetId\": \"a79270bf-5a79-4bdc-8fef-586bfcff6e9f\",\n  \"code\": \"445223\",\n  \"currency\": \"NGN\",\n  \"institutionIdentifier\": \"OPAYNGPC\"\n}"

response = http.request(request)
puts response.read_body

{
  "reference": "client-reference-value",
  "data": {
    "amlScreening": {},
    "amount": "1000",
    "amountPaid": "1000",
    "amountUSD": "0.68",
    "asset": {
      "address": "0x46C85152bFe9f96829aA94755D9f915F9B10EF5F",
      "configurations": null,
      "createdAt": "2026-01-20T08:10:37.843Z",
      "currency": "NGN",
      "decimals": 6,
      "id": "4a54eddc-b2bc-42a2-8197-4f2cb250866e",
      "isActive": true,
      "isNative": false,
      "name": "cNGN",
      "network": "mainnet",
      "standard": null,
      "symbol": "cNGN",
      "updatedAt": "2026-01-20T08:10:37.843Z"
    },
    "assetSwept": null,
    "assetSweptAmount": null,
    "assetSweptAt": null,
    "assetSweptGasFee": null,
    "assetSweptHash": null,
    "assetSweptRecipientAddress": null,
    "assetSweptSenderAddress": null,
    "blockHash": null,
    "blockNumber": null,
    "blockchain": {
      "configurations": null,
      "createdAt": "2026-01-20T08:10:37.776Z",
      "derivationPath": "m/44'/60'/0'/0",
      "id": "384ba700-5831-49a1-8cba-7d89385d5a25",
      "isActive": true,
      "isEvmCompatible": true,
      "isL2": true,
      "name": "base",
      "networkFeeModel": "native",
      "slug": "base",
      "symbol": "eth",
      "tokenStandard": null,
      "updatedAt": "2026-01-20T08:10:37.776Z"
    },
    "chainId": null,
    "confirmations": null,
    "confirmed": false,
    "createdAt": "2026-01-29T06:07:10.726Z",
    "createdChannel": "dashboard",
    "currency": "NGN",
    "fee": "2",
    "feeHash": null,
    "feeUSD": null,
    "gasFee": null,
    "gasPrice": null,
    "gasUsed": null,
    "hash": null,
    "id": "db53c3ef-5643-4f98-92cf-d02aef300f45",
    "isAutoSweep": false,
    "metadata": null,
    "network": "mainnet",
    "note": null,
    "processingProviderReference": null,
    "processingReason": null,
    "processingStatus": "PENDING",
    "rate": "1",
    "rateUSD": "0.00068",
    "reason": null,
    "recipientAddress": "0x30F6A8457F8E42371E204a9c103f2Bd42341dD0F",
    "reference": "v7OlAUdQzvrEabyMJJ3",
    "senderAddress": "0x969838345E5cd5F755DfcADB57e72F5d23271e48",
    "signedTransaction": null,
    "status": "PENDING",
    "toAmount": "1000",
    "toCurrency": "NGN",
    "tokenAddress": "0x46C85152bFe9f96829aA94755D9f915F9B10EF5F",
    "type": "OFFRAMP",
    "updatedAt": "2026-01-29T06:07:10.726Z",
    "wallet": {
      "address": "0x969838345E5cd5F755DfcADB57e72F5d23271e48",
      "configurations": {
        "addresses": {
          "prefunding": {
            "isActive": false,
            "rules": []
          }
        },
        "autoSettlement": {
          "isActive": false,
          "rules": []
        },
        "autoSweeping": {
          "isActive": true,
          "threshold": 0
        },
        "withdrawal": {
          "gasless": {
            "isActive": false,
            "operator": "gt",
            "threshold": 0
          }
        }
      },
      "createdAt": "2026-01-20T08:44:44.305Z",
      "derivationPath": "m/44'/60'/0'/0/0",
      "description": "This is Base master Wallet",
      "id": "7aa5120b-2106-43c6-92c7-6458b7d2de8b",
      "isActive": true,
      "name": "Base Mainnet",
      "network": "mainnet",
      "status": "ACTIVE",
      "updatedAt": "2026-01-20T08:44:44.305Z"
    }
  },
  "message": "Successful",
  "status": true
}