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 API2const 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({9 to: '[email protected]',10 subject: 'Welcome to our platform!',11 template: 'welcome-email',12 data: {13 name: 'John',14 company: 'Acme Inc'15 }16 })17});1819const { 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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