ZapSMTP / Docs / EmailsResponse
List emails
GET/v1/emails
List sent emails, newest first.
Requires a full-access key.
Use the last item's id as before= for the next page. metadata may be null when the email has none. last_status and last_event carry the same value.
Query parameters
limitinteger- 1-100; out-of-range values fall back to 20. Default
20. beforestring- Cursor: an email id (UUIDv7) or RFC 3339 time; returns emails accepted before it. An email id gives an exact page boundary. Limits: 422 invalid_parameter "before must be an email id or RFC 3339 time"
afterstring- Email id or RFC 3339 time; only emails created after it (still newest first). Limits: 422 invalid_parameter "after must be an email id or RFC 3339 time"
statusstring- Filter by latest status. status=scheduled lists pending scheduled sends instead (different item shape, ordered by scheduled time ascending, has_more always false, other filters/cursors ignored). One of
queued,delivered,delivery_delayed,bounced,complained,failed,opened,clicked,replied,suppressed,scheduled. qstring- Case-insensitive substring of a recipient or subject, or an exact email id.
daysinteger- Look-back window in days, 1-90 (other values ignored). Always capped by the plan's log retention. Default
30. streamstring- One of
transactional,broadcast. modestring- Filter live or test-mode (sandbox) traffic; other values ignored. One of
live,test. metadata[<key>]string- Exact match on a metadata value, e.g. metadata[order_id]=A-1042. Repeatable for several keys.
Errors
restricted_api_keyHTTP 403invalid_parameterHTTP 422- bad before/after
curl 'https://zapsmtp.xyz/v1/emails?limit=10' \
-H "Authorization: Bearer $ZAP_API_KEY"const res = await fetch('https://zapsmtp.xyz/v1/emails?limit=10', {
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/emails?limit=10",
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
$ch = curl_init('https://zapsmtp.xyz/v1/emails?limit=10');
curl_setopt_array($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($data);package main
import (
"fmt"
"io"
"net/http"
"os"
)
func main() {
req, err := http.NewRequest(
"GET",
"https://zapsmtp.xyz/v1/emails?limit=10",
nil,
)
if err != nil {
panic(err)
}
req.Header.Set("Authorization", "Bearer "+os.Getenv("ZAP_API_KEY"))
res, err := http.DefaultClient.Do(req)
if err != nil {
panic(err)
}
defer res.Body.Close()
out, _ := io.ReadAll(res.Body)
fmt.Println(res.Status, string(out))
}require 'net/http'
require 'json'
uri = URI('https://zapsmtp.xyz/v1/emails?limit=10')
req = Net::HTTP::Get.new(uri)
req['Authorization'] = "Bearer #{ENV.fetch('ZAP_API_KEY')}"
res = Net::HTTP.start(uri.host, uri.port, use_ssl: true) { |http| http.request(req) }
puts res.code, (JSON.parse(res.body) unless res.body.to_s.empty?)import java.net.URI;
import java.net.http.*;
public class ZapRequest {
public static void main(String[] args) throws Exception {
var request = HttpRequest.newBuilder(URI.create("https://zapsmtp.xyz/v1/emails?limit=10"))
.header("Authorization", "Bearer " + System.getenv("ZAP_API_KEY"))
.method("GET", HttpRequest.BodyPublishers.noBody())
.build();
var response = HttpClient.newHttpClient()
.send(request, HttpResponse.BodyHandlers.ofString());
System.out.println(response.statusCode() + " " + response.body());
}
}using System.Net.Http.Headers;
using System.Text;
using var http = new HttpClient();
var request = new HttpRequestMessage(HttpMethod.Get, "https://zapsmtp.xyz/v1/emails?limit=10");
request.Headers.Authorization = new AuthenticationHeaderValue(
"Bearer", Environment.GetEnvironmentVariable("ZAP_API_KEY"));
var response = await http.SendAsync(request);
Console.WriteLine($"{(int)response.StatusCode} {await response.Content.ReadAsStringAsync()}");Set
ZAP_API_KEY in your environment.Response 200 OK
{
"object": "list",
"has_more": true,
"data": [
{
"object": "email",
"id": "019a1f2e-7c3b-7d41-9a52-0c4b8e6f1a23",
"from": "Acme <hello@acme.com>",
"subject": "Your receipt",
"to": [
"jane@example.org"
],
"last_status": "delivered",
"last_event": "delivered",
"created_at": "2026-10-21T15:04:10.902Z",
"stream": "transactional",
"test": false,
"metadata": {
"order_id": "A-1042"
}
}
]
}