Deliver global SMS authentication and notifications reliably

SMS Connect delivers SMS messages globally with carrier-grade reliability. Send one-time passwords, alerts, and notifications to users in over 200 countries. Our network connections ensure messages arrive in seconds, not minutes.

Built for authentication workflows, SMS Connect includes pre-built 2FA templates, automatic retry logic, and fraud detection. Verify phone numbers, send confirmation codes, and secure user accounts with SMS-based authentication.

Two-Factor Authentication

Implement SMS-based 2FA in minutes. SMS Connect generates secure codes, handles verification, and manages rate limiting automatically. Prevent brute force attacks with built-in throttling and lockout policies.

import { SMSConnect } from '@smsconnect/sdk';

const sms = new SMSConnect({
  apiKey: process.env.SMS_CONNECT_KEY
});

// Send verification code
const verification = await sms.verify.send({
  to: '+1234567890',
  channel: 'sms'
});

// Check verification code
const result = await sms.verify.check({
  to: '+1234567890',
  code: userInputCode
});

if (result.valid) {
  // Phone number verified
}

import { SMSConnect } from '@smsconnect/sdk';

const sms = new SMSConnect({
  apiKey: process.env.SMS_CONNECT_KEY
});

// Send verification code
const verification = await sms.verify.send({
  to: '+1234567890',
  channel: 'sms'
});

// Check verification code
const result = await sms.verify.check({
  to: '+1234567890',
  code: userInputCode
});

if (result.valid) {
  // Phone number verified
}

import { SMSConnect } from '@smsconnect/sdk';

const sms = new SMSConnect({
  apiKey: process.env.SMS_CONNECT_KEY
});

// Send verification code
const verification = await sms.verify.send({
  to: '+1234567890',
  channel: 'sms'
});

// Check verification code
const result = await sms.verify.check({
  to: '+1234567890',
  code: userInputCode
});

if (result.valid) {
  // Phone number verified
}

Delivery Features

Choose between standard and premium routes for different use cases. Premium routes ensure sub-5-second delivery for critical messages. Standard routes offer cost-effective delivery for bulk notifications.

Cost Optimization

SMS Connect intelligently routes messages through the most cost-effective carriers while maintaining reliability. Monitor spending with real-time cost tracking. Set budget alerts and per-user limits to control expenses.

Track delivery status with detailed logs. See which messages failed and why. Automatically retry failed messages through alternative carriers. Get webhook notifications for delivery status changes.

Handle unsubscribes and compliance automatically. Maintain DNC lists and respect opt-out requests. Support for long messages that automatically split into multiple segments.