ZapSMTP / Docs / WebhooksResponse
List delivery attempts
GET/v1/webhooks/{id}/deliveries
List the last 100 delivery attempts of a webhook (newest first).
Requires a full-access key.
attempt starts at 1. body is the exact payload sent (omitted above 64 KB); error is omitted on success.
Path parameters
idstringrequired- Webhook id
Errors
restricted_api_keyHTTP 403not_foundHTTP 404- webhook not found
curl 'https://zapsmtp.xyz/v1/webhooks/019a1c55-0d6e-7f21-8b3a-5e9d4c7b2a10/deliveries' \
-H "Authorization: Bearer $ZAP_API_KEY"const res = await fetch('https://zapsmtp.xyz/v1/webhooks/019a1c55-0d6e-7f21-8b3a-5e9d4c7b2a10/deliveries', {
method: 'GET',
headers: {
Authorization: `Bearer ${process.env.ZAP_API_KEY}`,
},
});
// 204 No Content (e.g. a delete) has no body
const data = res.status === 204 ? null : await res.json();
if (!res.ok) throw new Error(`${data.name}: ${data.message}`);
console.log(data);import os
import requests
res = requests.get(
"https://zapsmtp.xyz/v1/webhooks/019a1c55-0d6e-7f21-8b3a-5e9d4c7b2a10/deliveries",
headers={"Authorization": f"Bearer {os.environ['ZAP_API_KEY']}"},
timeout=30,
)
res.raise_for_status()
print(res.json() if res.status_code != 204 else "deleted")<?php
$ch = curl_init('https://zapsmtp.xyz/v1/webhooks/019a1c55-0d6e-7f21-8b3a-5e9d4c7b2a10/deliveries');
curl_setopt_array($ch, [
CURLOPT_CUSTOMREQUEST => 'GET',
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => [
'Authorization: Bearer ' . getenv('ZAP_API_KEY'),
],
]);
$data = json_decode(curl_exec($ch), true);
$status = curl_getinfo($ch, CURLINFO_RESPONSE_CODE);
if ($status >= 400) {
throw new RuntimeException($data['message']);
}
print_r($data);package main
import (
"fmt"
"io"
"net/http"
"os"
)
func main() {
req, err := http.NewRequest(
"GET",
"https://zapsmtp.xyz/v1/webhooks/019a1c55-0d6e-7f21-8b3a-5e9d4c7b2a10/deliveries",
nil,
)
if err != nil {
panic(err)
}
req.Header.Set("Authorization", "Bearer "+os.Getenv("ZAP_API_KEY"))
res, err := http.DefaultClient.Do(req)
if err != nil {
panic(err)
}
defer res.Body.Close()
out, _ := io.ReadAll(res.Body)
fmt.Println(res.Status, string(out))
}require 'net/http'
require 'json'
uri = URI('https://zapsmtp.xyz/v1/webhooks/019a1c55-0d6e-7f21-8b3a-5e9d4c7b2a10/deliveries')
req = Net::HTTP::Get.new(uri)
req['Authorization'] = "Bearer #{ENV.fetch('ZAP_API_KEY')}"
res = Net::HTTP.start(uri.host, uri.port, use_ssl: true) { |http| http.request(req) }
puts res.code, (JSON.parse(res.body) unless res.body.to_s.empty?)import java.net.URI;
import java.net.http.*;
public class ZapRequest {
public static void main(String[] args) throws Exception {
var request = HttpRequest.newBuilder(URI.create("https://zapsmtp.xyz/v1/webhooks/019a1c55-0d6e-7f21-8b3a-5e9d4c7b2a10/deliveries"))
.header("Authorization", "Bearer " + System.getenv("ZAP_API_KEY"))
.method("GET", HttpRequest.BodyPublishers.noBody())
.build();
var response = HttpClient.newHttpClient()
.send(request, HttpResponse.BodyHandlers.ofString());
System.out.println(response.statusCode() + " " + response.body());
}
}using System.Net.Http.Headers;
using System.Text;
using var http = new HttpClient();
var request = new HttpRequestMessage(HttpMethod.Get, "https://zapsmtp.xyz/v1/webhooks/019a1c55-0d6e-7f21-8b3a-5e9d4c7b2a10/deliveries");
request.Headers.Authorization = new AuthenticationHeaderValue(
"Bearer", Environment.GetEnvironmentVariable("ZAP_API_KEY"));
var response = await http.SendAsync(request);
Console.WriteLine($"{(int)response.StatusCode} {await response.Content.ReadAsStringAsync()}");Set
ZAP_API_KEY in your environment.Response 200 OK
{
"object": "list",
"has_more": false,
"data": [
{
"event_id": "evt_4f1c9a2b7e3d5c8a1b6f0e2d",
"event_type": "email.bounced",
"attempt": 2,
"status_code": 503,
"error": "HTTP 503",
"duration_ms": 412,
"at": "2026-10-21T15:09:17.004Z",
"body": {
"id": "evt_4f1c9a2b7e3d5c8a1b6f0e2d",
"type": "email.bounced",
"created_at": "2026-10-21T15:04:12.381Z",
"data": {
"email_id": "019a1f2e-7c3b-7d41-9a52-0c4b8e6f1a23",
"to": "jane@example.org"
}
}
}
]
}