curl --request POST \
  --url https://sandbox.groundtech.co/v2/webhooks \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "url": "https://ops.acme-treasury.com/webhooks/ground",
  "events": [
    "portfolio_wallet.deposit.status_changed",
    "portfolio_wallet.withdrawal.status_changed",
    "portfolio_wallet.status_changed",
    "portfolio_wallet.rebalance.status_changed"
  ],
  "description": "Notify treasury operations when wallet balances or withdrawals change"
}
'

import requests

url = "https://sandbox.groundtech.co/v2/webhooks"

payload = {
    "url": "https://ops.acme-treasury.com/webhooks/ground",
    "events": ["portfolio_wallet.deposit.status_changed", "portfolio_wallet.withdrawal.status_changed", "portfolio_wallet.status_changed", "portfolio_wallet.rebalance.status_changed"],
    "description": "Notify treasury operations when wallet balances or withdrawals change"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    url: 'https://ops.acme-treasury.com/webhooks/ground',
    events: [
      'portfolio_wallet.deposit.status_changed',
      'portfolio_wallet.withdrawal.status_changed',
      'portfolio_wallet.status_changed',
      'portfolio_wallet.rebalance.status_changed'
    ],
    description: 'Notify treasury operations when wallet balances or withdrawals change'
  })
};

fetch('https://sandbox.groundtech.co/v2/webhooks', 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://sandbox.groundtech.co/v2/webhooks",
  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([
    'url' => 'https://ops.acme-treasury.com/webhooks/ground',
    'events' => [
        'portfolio_wallet.deposit.status_changed',
        'portfolio_wallet.withdrawal.status_changed',
        'portfolio_wallet.status_changed',
        'portfolio_wallet.rebalance.status_changed'
    ],
    'description' => 'Notify treasury operations when wallet balances or withdrawals change'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($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://sandbox.groundtech.co/v2/webhooks"

	payload := strings.NewReader("{\n  \"url\": \"https://ops.acme-treasury.com/webhooks/ground\",\n  \"events\": [\n    \"portfolio_wallet.deposit.status_changed\",\n    \"portfolio_wallet.withdrawal.status_changed\",\n    \"portfolio_wallet.status_changed\",\n    \"portfolio_wallet.rebalance.status_changed\"\n  ],\n  \"description\": \"Notify treasury operations when wallet balances or withdrawals change\"\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	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://sandbox.groundtech.co/v2/webhooks")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"url\": \"https://ops.acme-treasury.com/webhooks/ground\",\n  \"events\": [\n    \"portfolio_wallet.deposit.status_changed\",\n    \"portfolio_wallet.withdrawal.status_changed\",\n    \"portfolio_wallet.status_changed\",\n    \"portfolio_wallet.rebalance.status_changed\"\n  ],\n  \"description\": \"Notify treasury operations when wallet balances or withdrawals change\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://sandbox.groundtech.co/v2/webhooks")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"url\": \"https://ops.acme-treasury.com/webhooks/ground\",\n  \"events\": [\n    \"portfolio_wallet.deposit.status_changed\",\n    \"portfolio_wallet.withdrawal.status_changed\",\n    \"portfolio_wallet.status_changed\",\n    \"portfolio_wallet.rebalance.status_changed\"\n  ],\n  \"description\": \"Notify treasury operations when wallet balances or withdrawals change\"\n}"

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

{
  "id": "6b6a0502-9d38-4f94-83fe-06706adbdc51",
  "url": "https://ops.acme-treasury.com/webhooks/ground",
  "events": [
    "portfolio_wallet.deposit.status_changed",
    "portfolio_wallet.withdrawal.status_changed",
    "portfolio_wallet.rebalance.status_changed"
  ],
  "secret": "ad4d5592b46c4b9361f0aa4f3b27fcaa8015751d0417e3993d7f5454652c5ab8",
  "createdAt": "2026-05-01T17:32:08.000Z"
}

{
  "error": "Unsupported event types: portfolio_wallet.legacy_event",
  "code": "validation_error"
}

{
  "error": "Unauthenticated request",
  "message": "Missing or invalid bearer token"
}

{
  "error": "A webhook endpoint already exists for this URL",
  "code": "webhook_duplicate_url"
}

{
  "error": "Rate limit exceeded",
  "code": "rate_limited"
}

{
  "error": "Internal server error",
  "code": "internal_error"
}