Why does OTP SMS beat email OTP?

SMS OTPs are read within seconds, work without internet, and reach every handset. Email OTPs land in spam and get delayed — conversion rates drop sharply.

What happens if the SMS is delayed?

Our failover engine automatically re-sends the same OTP on WhatsApp or triggers an automated voice call reading the code — configurable per your tolerance.

Do you protect against OTP fraud and SMS pumping?

Yes — velocity caps per number/IP, disposable-number detection and geo-anomaly checks are built into the verify API.

OTPs your users never wait for

Multi-channel one-time passwords with automatic failover — if SMS is delayed, the same OTP fires on WhatsApp or a voice call within seconds. Fraud stays out, customers stay in.

Secure My Logins View Pricing

<3 sec

average OTP latency

99.9%

uptime SLA

delivery channels

Live Demo

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Everything you need, built in

Sub-3-second delivery

Dedicated high-priority OTP routes, separate from promotional traffic.

Auto channel failover

SMS → WhatsApp → Voice call fallback, configurable per your flow.

Fraud controls

Velocity limits, geo-checks and number-risk scoring stop OTP abuse and SMS pumping.

One API, all channels

Single verify API generates, sends, retries and validates the OTP for you.

Conversion analytics

See generation-to-verification funnels and channel performance live.

Who uses this — and how

Real ways real businesses put OTP & Authentication to work.

Apps & SaaS platforms

When: Signup, login and password reset
How: Call one verify API; we generate, deliver and validate the code.

Fintech & trading

When: Transaction authorisation & KYC
How: High-priority routes with voice fallback keep money moving even during network congestion.

E-commerce & delivery

When: Cash-on-delivery and doorstep verification
How: Rider app requests OTP; customer receives instantly; proof-of-delivery recorded.

Enterprises

When: Employee 2FA on internal tools
How: Add a second factor to VPN, ERP or HRMS logins without buying hardware tokens.

How it works

Integrate the verify API

One endpoint to send, one to verify — SDKs for every major language.

Choose channel priority

Pick SMS-first, WhatsApp-first or voice-first with automatic fallback timing.

Watch conversions climb

Funnel dashboards show delivery and verification rates per channel in real time.

Frequently asked questions

Ready to put OTP & Authentication to work?

Talk to our team — live demo in 15 minutes, onboarding in a day.

Book a Free Demo