Developer API

Built for developers, by developers

Integrate email capabilities into your application with our comprehensive REST API. Send transactional emails, manage subscribers, and trigger workflows programmatically.

RESTful API

Simple, intuitive endpoints for all operations

API Keys

Scoped permissions and usage analytics

Webhooks

Real-time event notifications

Rate Limiting

Smart backoff with high limits

send-email.js
1// Send an email with the SendMailOS API
2const response = await fetch('https://api.sendmailos.com/v1/send', {
3 method: 'POST',
4 headers: {
5 'Authorization': 'Bearer YOUR_API_KEY',
6 'Content-Type': 'application/json',
7 },
8 body: JSON.stringify({
10 subject: 'Welcome to our platform!',
11 template: 'welcome-email',
12 data: {
13 name: 'John',
14 company: 'Acme Inc'
15 }
16 })
17});
18
19const { id, status } = await response.json();
20console.log(`Email ${id} sent with status: ${status}`);

Developer Features

99.9% Uptime SLA

Reliability you can trust for mission-critical emails.

Detailed Logs

Searchable history of every email sent, delivered, or bounced.

Multiple SDKs

Official libraries for Node.js, Python, PHP, and Ruby.

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