Secure Your Customers with Instant OTP Delivery

Fast, reliable, and scalable One-Time Password SMS delivery for authentication and identity verification.

Mobile phone with OTP verification screen

Secure Authentication Use Cases

Protect user accounts and transactions with instant verification codes

Authentication

Secure login verification

App Login

Mobile app security

Payment Verification

Transaction security

Two-Factor Auth

Additional security layer

Industry-Leading Reliability

Our global infrastructure ensures your authentication codes arrive instantly

5seconds

average delivery time

99.9%

success rate

200+

global carriers

Enterprise-Grade Security

Compliant with global security standards and regulations

GDPR

GDPR Compliance

ISO

ISO 27001

PCI

PCI-DSS

TLS

TLS Encryption

Built for Developers

Simple integration with powerful features

RESTful API

Simple integration with any platform

SDKs

Libraries for popular languages

Webhooks

Real-time delivery notifications

Templates

Pre-approved message templates

Trusted Across Industries

OTP SMS solutions for every sector

Finance

Secure login and transaction verification

E-commerce

Checkout verification and account protection

SaaS

User account security

Healthcare

Patient portal access verification

What Our Customers Say

Join thousands of businesses that trust our OTP service

send-text.com's OTP service has reduced our fraud cases by 60% with instant verification. The reliability is unmatched.

Sarah Johnson

Sarah Johnson

Head of Security, FinTech Corp

Our patient portal is now more secure than ever with send-text.com's OTP system. Patients love the instant access.

James Wilson

James Wilson

CTO, HealthTech

Checkout verification is seamless with send-text.com's OTP service. Our conversion rates have improved significantly.

Emily Chen

Emily Chen

Security Lead, E-commerce

Why SMS for Authentication?

Compare SMS to other authentication methods

ChannelDelivery SpeedRead TimeInternet RequiredOpen RateReach
SMSSeconds3 minutesNo98%All mobile phones
EmailMinutesHoursYes20%Email users only
Push NotificationsSecondsVariableYes40-60%App users only

Only Pay for What You Use

Transparent pricing with volume discounts and no hidden fees

Try Our Pricing Calculator

Start Verifying Users Securely Today

Join thousands of businesses that trust send-text.com for their critical authentication needs