Send to your customers, their way
One API for Email, SMS, and Paper Mail. Build applications that reach your users through any channel. 60-70% of US mail is still physical - don't miss your audience.
Send.dev
Unified Communications API
100ms
Avg. latency
99.9%
Delivery rate
Features
Everything you need to communicate at scale
Email, SMS, and Paper Mail in one unified platform. Built for developers who need reliable messaging infrastructure without the complexity.
Email API
Transactional emails with 99.9% deliverability. Built on AWS SES with automatic SPF, DKIM, and DMARC handling.
SMS API
Send SMS to 200+ countries. Verification codes, notifications, and alerts delivered in milliseconds.
Paper Mail
Physical letters and postcards sent via API. Reach the 60-70% of US mail that's still paper-based.
Global Coverage
One API for worldwide reach. Local compliance, carrier routing, and address validation included.
Enterprise Security
SOC 2 compliant with end-to-end encryption. Your data and your users' data is always protected.
Developer First
Clean REST API with SDKs for every major language. Full TypeScript support. Get started in minutes.
Simple Integration
Start sending in under 5 minutes
One unified SDK for all communication channels. Clean APIs, comprehensive documentation, and examples for every use case.
- One SDK for Email, SMS, and Paper Mail
- TypeScript-first with full type safety
- Async/await with built-in retries
- Works with any framework
import { Send } from '@send.dev/sdk'
const send = new Send(process.env.SEND_API_KEY)
// Send an email
await send.email({
to: 'user@example.com',
subject: 'Welcome!',
html: '<p>Thanks for joining!</p>'
})
// Send an SMS
await send.sms({
to: '+1234567890',
message: 'Your code is 123456'
})
// Send a letter
await send.mail({
to: { name: 'John Doe', address: '123 Main St' },
content: 'Your invoice is attached.'
})Ready to start sending?
Send.dev is part of the Do.dev platform. One unified API for Email, SMS, and Paper Mail. Reach your users through any channel.
Enterprise-grade communication infrastructure for developers.