Everything you need to deliver high-converting emails

Authentication

Pass your API secret key in the Authorization: Bearer sk_live_... header on every request.

cURL

curl -X POST https://api.ultymailer.com/v1/send \
  -H "Authorization: Bearer sk_live_your_key_here" \
  -H "Content-Type: application/json" \
  -d '{
    "from": "Alex <alex@yourdomain.com>",
    "to": ["user1@company.com", "user2@company.com"],
    "subject": "Welcome to [-company-]!",
    "html": "<p>Hi [-first_name-], your account is ready.</p>",
    "track_opens": true
  }'

Node.js (Fetch)

const response = await fetch('https://api.ultymailer.com/v1/send', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer sk_live_your_key_here',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    from: 'Alex <alex@yourdomain.com>',
    to: ['user1@company.com'],
    subject: 'Welcome aboard!',
    html: '<p>Hi there, welcome to our service.</p>',
    track_opens: true,
  }),
});
const data = await response.json();
console.log('Delivered:', data);

Python (Requests)

import requests

url = "https://api.ultymailer.com/v1/send"
headers = {
    "Authorization": "Bearer sk_live_your_key_here",
    "Content-Type": "application/json"
}
payload = {
    "from": "Alex <alex@yourdomain.com>",
    "to": ["lead@company.com"],
    "subject": "Quick follow-up",
    "html": "<p>Hello, following up on our chat.</p>",
    "track_opens": True
}

res = requests.post(url, json=payload, headers=headers)
print(res.status_code, res.json())

Go (net/http)

package main

import (
    "bytes"
    "encoding/json"
    "net/http"
)

func main() {
    body, _ := json.Marshal(map[string]interface{}{
        "from": "Alex <alex@yourdomain.com>",
        "to": []string{"user@company.com"},
        "subject": "Account verified",
        "html": "<p>Welcome!</p>",
        "track_opens": true,
    })

    req, _ := http.NewRequest("POST", "https://api.ultymailer.com/v1/send", bytes.NewBuffer(body))
    req.Header.Set("Authorization", "Bearer sk_live_your_key_here")
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err == nil {
        defer resp.Body.Close()
    }
}