Welcome to the Send.dev API documentation. We provide a unified platform for all your communication needs—email, SMS, and physical mail—with a focus on deliverability, developer experience, and reliability.

Why Send.dev?

• Unified Platform - Email, SMS, and print from a single API
• Superior Deliverability - Per-tenant email reputation isolation with AWS SES
• Developer First - Clean APIs, comprehensive SDKs, and detailed documentation
• Real-time Analytics - Track opens, clicks, bounces, and delivery in real-time
• Custom Domains - Full DKIM, SPF, and DMARC support for maximum deliverability

Quick Example

Send an email with a single API call:

curl -X POST https://api.send.dev/v1/emails \
-H "Authorization: Bearer sk_live_your_api_key" \
-H "Content-Type: application/json" \
-d '{
  "from": "hello@yourdomain.com",
  "to": "user@example.com",
  "subject": "Welcome to our platform!",
  "html": "<h1>Welcome!</h1><p>Thanks for signing up.</p>"
}'

{
"id": "email_01HXYZ123456789",
"status": "queued",
"from": "hello@yourdomain.com",
"to": "user@example.com",
"subject": "Welcome to our platform!",
"created_at": "2025-01-13T10:30:00Z"
}

Base URL

All API requests should be made to:

https://api.send.dev/v1

Available APIs

Next Steps

• Quick Start - Get your API key and send your first email
• Authentication - Learn about API authentication
• Email API - Deep dive into email capabilities
• Domain Setup - Configure your sending domain