SMS Verification
Verify Users with
SMS Codes
Send verification codes to phone numbers worldwide. Reduce fraud, verify identity, and secure user accounts with SMS OTP.
How SMS Verification Works
Step 1
Send Code
User enters phone number, you send a verification request to our API.
Step 2
User Receives
We deliver a unique OTP code to the user's phone via SMS.
Step 3
Verify
User enters the code, you verify it against our API.
Simple Integration
Verify phone numbers with just a few lines of code.
Send verification code
import Zavudev from '@zavudev/sdk';
const zavu = new Zavu('YOUR_API_KEY');
// Send verification code
const message = await zavu.messages.send({
to: '+1234567890',
text: 'Your verification code is: 123456. Valid for 10 minutes.'
});
// Track delivery status
console.log(message.status); // 'queued' | 'sent' | 'delivered'Why SMS Verification?
Prevent Fraud
Verify that users control the phone numbers they claim, reducing fake accounts and fraud.
Fast Delivery
OTP codes delivered in seconds with our optimized SMS infrastructure.
Global Coverage
Verify phone numbers in 200+ countries with localized sender IDs.
Secure
Cryptographically secure code generation with configurable expiry times.
Common Use Cases
User registration and signup
Password reset flows
Transaction confirmation
Account recovery
High-value action verification
Change of phone number
Ready to Verify Users?
Start verifying phone numbers in minutes. No contracts, no minimums.