curl --request POST \
  --url https://api.blockradar.co/v1/wallets/{walletId}/transactions/cancel \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "id": "960661a2-0337-4609-b870-348d67fae934"
}
'

import requests

url = "https://api.blockradar.co/v1/wallets/{walletId}/transactions/cancel"

payload = { "id": "960661a2-0337-4609-b870-348d67fae934" }
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({id: '960661a2-0337-4609-b870-348d67fae934'})
};

fetch('https://api.blockradar.co/v1/wallets/{walletId}/transactions/cancel', 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}/transactions/cancel",
  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([
    'id' => '960661a2-0337-4609-b870-348d67fae934'
  ]),
  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}/transactions/cancel"

	payload := strings.NewReader("{\n  \"id\": \"960661a2-0337-4609-b870-348d67fae934\"\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}/transactions/cancel")
  .header("x-api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"id\": \"960661a2-0337-4609-b870-348d67fae934\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.blockradar.co/v1/wallets/{walletId}/transactions/cancel")

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  \"id\": \"960661a2-0337-4609-b870-348d67fae934\"\n}"

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

{
  "data": {
    "address": null,
    "amlScreening": {},
    "amount": "0.1",
    "amountPaid": "0.1",
    "amountUSD": "0.1",
    "asset": {
      "address": "0x55d398326f99059fF775485246999027B3197955",
      "createdAt": "2024-05-14T16:53:33.671Z",
      "currency": "USD",
      "decimals": 18,
      "id": "e572fb27-3e52-4dd0-8452-f9a681be03f3",
      "isActive": true,
      "isNative": false,
      "name": "Tether USD",
      "network": "mainnet",
      "standard": "BEP20",
      "symbol": "USDT",
      "updatedAt": "2025-04-17T03:50:19.952Z"
    },
    "assetSwept": null,
    "assetSweptAmount": null,
    "assetSweptAt": null,
    "assetSweptGasFee": null,
    "assetSweptHash": null,
    "assetSweptRecipientAddress": null,
    "assetSweptSenderAddress": null,
    "blockHash": null,
    "blockNumber": null,
    "blockchain": {
      "createdAt": "2024-05-14T16:53:33.106Z",
      "derivationPath": "m/44'/60'/0'/0",
      "id": "b80d3d5e-16f1-4d99-be5e-6dfcd27f89aa",
      "isActive": true,
      "isEvmCompatible": true,
      "isL2": false,
      "name": "BNB smart chain",
      "slug": "bnb-smart-chain",
      "symbol": "bnb",
      "tokenStandard": "BEP20",
      "updatedAt": "2024-11-26T19:04:13.941Z"
    },
    "chainId": null,
    "confirmations": null,
    "confirmed": false,
    "createdAt": "2025-09-23T15:14:30.894Z",
    "createdChannel": "dashboard",
    "currency": "USD",
    "fee": "0.00003",
    "feeHash": "0xf41d394f91dfb1c07890bac1cf5d408f6c0edb526ed371b481ab46caf0acb1d2",
    "gasFee": null,
    "gasPrice": null,
    "gasUsed": null,
    "hash": null,
    "id": "5f65c56e-58d9-4b26-a2fd-98b5b9cbd26b",
    "metadata": null,
    "network": "mainnet",
    "note": " Withdrawal of 0.1 USDT from 0xD2b6be31932E0294F2ebD14a008C3f1E05B47BC4 to 0xb55c054D8eE75224E1033e6eC775B4F62D942b43 on BNB smart chain",
    "rate": null,
    "rateUSD": "1",
    "reason": "Withdrawal of 0.1 from 0xD2b6be31932E0294F2ebD14a008C3f1E05B47BC4 USDT to 0xb55c054D8eE75224E1033e6eC775B4F62D942b43 on BNB smart chain",
    "recipientAddress": "0xb55c054D8eE75224E1033e6eC775B4F62D942b43",
    "reference": "OjAhIPve6kAX3CQwPVkg",
    "senderAddress": "0xD2b6be31932E0294F2ebD14a008C3f1E05B47BC4",
    "signedTransaction": null,
    "status": "CANCELLED",
    "toAmount": null,
    "toCurrency": null,
    "tokenAddress": "0x55d398326f99059fF775485246999027B3197955",
    "type": "WITHDRAW",
    "updatedAt": "2025-09-23T15:28:02.993Z"
  },
  "message": "Transaction cancelled",
  "statusCode": 200
}