curl --request POST \
  --url https://api.beta.getpara.com/v1/wallets/{walletId}/transactions/{transactionId}/cancel \
  --header 'Content-Type: application/json' \
  --header 'Idempotency-Key: <idempotency-key>' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "maxExecutionFeeWei": "1000000000000000"
}
'

import requests

url = "https://api.beta.getpara.com/v1/wallets/{walletId}/transactions/{transactionId}/cancel"

payload = { "maxExecutionFeeWei": "1000000000000000" }
headers = {
    "Idempotency-Key": "<idempotency-key>",
    "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: {
    'Idempotency-Key': '<idempotency-key>',
    'X-API-Key': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({maxExecutionFeeWei: '1000000000000000'})
};

fetch('https://api.beta.getpara.com/v1/wallets/{walletId}/transactions/{transactionId}/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.beta.getpara.com/v1/wallets/{walletId}/transactions/{transactionId}/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([
    'maxExecutionFeeWei' => '1000000000000000'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "Idempotency-Key: <idempotency-key>",
    "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.beta.getpara.com/v1/wallets/{walletId}/transactions/{transactionId}/cancel"

	payload := strings.NewReader("{\n  \"maxExecutionFeeWei\": \"1000000000000000\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Idempotency-Key", "<idempotency-key>")
	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.beta.getpara.com/v1/wallets/{walletId}/transactions/{transactionId}/cancel")
  .header("Idempotency-Key", "<idempotency-key>")
  .header("X-API-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"maxExecutionFeeWei\": \"1000000000000000\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.beta.getpara.com/v1/wallets/{walletId}/transactions/{transactionId}/cancel")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Idempotency-Key"] = '<idempotency-key>'
request["X-API-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"maxExecutionFeeWei\": \"1000000000000000\"\n}"

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

{
  "transactionId": "550e8400-e29b-41d4-a716-446655440000",
  "walletId": "aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee",
  "walletType": "EVM",
  "intentKind": "transfer",
  "status": "submitted",
  "createdAt": "2026-10-14T12:00:00Z",
  "manualRecovery": {
    "action": "cancel",
    "state": "active",
    "nonce": 7,
    "originalHash": "0x1234abcd...",
    "attempt": {
      "stage": "prepared",
      "preparedAt": "2026-10-14T12:05:00Z"
    }
  }
}

{
  "code": "INVALID_REQUEST",
  "message": "<string>",
  "transactionId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "failureStage": "mpc_sign",
  "failureCode": "<string>",
  "signedTransaction": "<string>"
}

{
  "code": "UNAUTHORIZED",
  "message": "secret api key not provided"
}

{
  "code": "FORBIDDEN",
  "message": "invalid secret api key"
}

{
  "code": "NOT_FOUND",
  "message": "wallet not found"
}

{
  "code": "INVALID_REQUEST",
  "message": "<string>",
  "transactionId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "failureStage": "mpc_sign",
  "failureCode": "<string>",
  "signedTransaction": "<string>"
}

{
  "code": "RATE_LIMITED",
  "message": "Rate limit exceeded, try again shortly."
}

{
  "code": "INTERNAL_ERROR",
  "message": "Internal Server Error"
}

{
  "code": "INVALID_REQUEST",
  "message": "<string>",
  "transactionId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "failureStage": "mpc_sign",
  "failureCode": "<string>",
  "signedTransaction": "<string>"
}