Create endpoint

curl --request POST \
  --url https://api.nxos.io/v1/webhooks/endpoints \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "url": "https://example.com/webhooks/nxos",
  "eventTypes": [
    "organization.verification.updated",
    "transaction.status.updated"
  ],
  "description": "Production receiver"
}
'

import requests

url = "https://api.nxos.io/v1/webhooks/endpoints"

payload = {
    "url": "https://example.com/webhooks/nxos",
    "eventTypes": ["organization.verification.updated", "transaction.status.updated"],
    "description": "Production receiver"
}
headers = {
    "Authorization": "<authorization>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: '<authorization>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    url: 'https://example.com/webhooks/nxos',
    eventTypes: ['organization.verification.updated', 'transaction.status.updated'],
    description: 'Production receiver'
  })
};

fetch('https://api.nxos.io/v1/webhooks/endpoints', 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.nxos.io/v1/webhooks/endpoints",
  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://example.com/webhooks/nxos',
    'eventTypes' => [
        'organization.verification.updated',
        'transaction.status.updated'
    ],
    'description' => 'Production receiver'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: <authorization>",
    "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://api.nxos.io/v1/webhooks/endpoints"

	payload := strings.NewReader("{\n  \"url\": \"https://example.com/webhooks/nxos\",\n  \"eventTypes\": [\n    \"organization.verification.updated\",\n    \"transaction.status.updated\"\n  ],\n  \"description\": \"Production receiver\"\n}")

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

	req.Header.Add("Authorization", "<authorization>")
	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.nxos.io/v1/webhooks/endpoints")
  .header("Authorization", "<authorization>")
  .header("Content-Type", "application/json")
  .body("{\n  \"url\": \"https://example.com/webhooks/nxos\",\n  \"eventTypes\": [\n    \"organization.verification.updated\",\n    \"transaction.status.updated\"\n  ],\n  \"description\": \"Production receiver\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.nxos.io/v1/webhooks/endpoints")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = '<authorization>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"url\": \"https://example.com/webhooks/nxos\",\n  \"eventTypes\": [\n    \"organization.verification.updated\",\n    \"transaction.status.updated\"\n  ],\n  \"description\": \"Production receiver\"\n}"

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

{
  "object": "webhook_endpoint",
  "id": "ep_a1b2c3d4e5f6a1b2c3d4e5f6",
  "url": "https://example.com/webhooks/nxos",
  "description": "Production receiver",
  "disabled": false,
  "eventTypes": [
    "transaction.status.updated"
  ],
  "createdAt": "2026-06-08T12:00:00Z",
  "updatedAt": "2026-06-08T12:00:00Z"
}

{
  "error": {
    "code": "missing_api_key",
    "message": "No Authorization header provided.",
    "requestId": "req_a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4"
  }
}

{
  "error": {
    "code": "invalid_request",
    "message": "The request body is malformed or missing required fields.",
    "requestId": "req_a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4"
  }
}

{
  "error": {
    "code": "rate_limited",
    "message": "Rate limit exceeded: 1000 requests per minute. Retry in 23 seconds.",
    "requestId": "req_a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4"
  }
}

{
  "error": {
    "code": "internal_error",
    "message": "An unexpected server error occurred.",
    "requestId": "req_a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4"
  }
}

{
  "error": {
    "code": "chain_send_failed",
    "message": "On-chain transaction failed.",
    "requestId": "req_a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4"
  }
}