curl --request GET \
  --url https://api.kit.com/v4/webhook_endpoints/{id}/deliveries/{delivery_id} \
  --header 'X-Kit-Api-Key: <api-key>'

require 'uri'
require 'net/http'

url = URI("https://api.kit.com/v4/webhook_endpoints/{id}/deliveries/{delivery_id}")

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

request = Net::HTTP::Get.new(url)
request["X-Kit-Api-Key"] = '<api-key>'

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

const options = {method: 'GET', headers: {'X-Kit-Api-Key': '<api-key>'}};

fetch('https://api.kit.com/v4/webhook_endpoints/{id}/deliveries/{delivery_id}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.kit.com/v4/webhook_endpoints/{id}/deliveries/{delivery_id}"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("X-Kit-Api-Key", "<api-key>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.kit.com/v4/webhook_endpoints/{id}/deliveries/{delivery_id}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "X-Kit-Api-Key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

import requests

url = "https://api.kit.com/v4/webhook_endpoints/{id}/deliveries/{delivery_id}"

headers = {"X-Kit-Api-Key": "<api-key>"}

response = requests.get(url, headers=headers)

print(response.text)

{
  "delivery": {
    "id": 4,
    "event_type": "subscriber.activated",
    "status": "pending",
    "attempt_count": 0,
    "created_at": "2023-02-17T11:43:55Z",
    "completed_at": null,
    "attempts": [
      {
        "id": 1,
        "attempt_number": 2,
        "status_code": 200,
        "error_message": null,
        "response_body": "ok",
        "duration_ms": 150,
        "attempted_at": "2023-02-17T11:43:55Z"
      },
      {
        "id": 2,
        "attempt_number": 1,
        "status_code": null,
        "error_message": "Connection refused",
        "response_body": null,
        "duration_ms": null,
        "attempted_at": "2023-02-17T11:43:55Z"
      }
    ],
    "payload": [
      {
        "id": "9b2f6a3e-4c1d-4e8a-9f0b-1a2b3c4d5e6f",
        "data": {
          "subscriber": {
            "id": 123,
            "state": "active",
            "fields": {},
            "created_at": "2026-01-01T00:00:00Z",
            "first_name": "Alice",
            "email_address": "alice@example.com"
          }
        },
        "type": "subscriber.activated",
        "created": "2026-01-01T00:00:00Z"
      }
    ]
  }
}

{
  "errors": [
    "Not Found"
  ]
}