Send secure, single-use verification codes over SMS, Email, and WhatsApp from one simple API. Sub-200ms delivery, built-in fraud prevention, and enterprise-grade security โ live in 5 minutes.
Reach every user wherever they are โ a phone, an inbox, or WhatsApp โ with the same reliable delivery and fraud protection behind every code.
Deliver one-time passcodes directly to any mobile number, globally, with direct carrier binds. Works on every phone โ smart or basic โ with no internet connection needed to receive it.
Send branded, deliverable OTP emails backed by authenticated sending domains and inbox-placement monitoring. Perfect for account security flows that need a written audit trail.
Send OTPs through official WhatsApp Business API templates for the highest open rates of any channel โ with delivery and read receipts so you know exactly when a code lands.
Every feature engineered around one goal โ a verification code that arrives fast, verifies correctly, and never gets abused.
Sub-200ms average delivery across SMS, Email, and WhatsApp with direct carrier routing.
99.8% delivery rate and 97%+ verification success across all three channels.
Single-use, auto-expiring codes encrypted in transit and at rest โ never reusable.
One REST API for SMS, Email & WhatsApp OTP โ no separate integrations needed.
Instant verify/reject responses so your users never wait for confirmation.
Clean docs, sandbox mode, and SDKs for Node, Python, Go, and Java.
Direct binds across 200+ countries with automatic fallback routing.
Live dashboards for delivery, verification, and fraud metrics per channel.
From checkout to compliance, Cubicles OTP powers identity verification across every industry we serve.
Four steps to send and verify OTPs across SMS, Email, and WhatsApp.
Connect our REST API or SDK to your app in minutes โ no complex setup.
Trigger a code via SMS, Email, or WhatsApp with one simple request.
Your user enters the code on your form โ we validate it instantly.
Access granted, event logged, audit trail created automatically.
Everything required to ship verification into production, safely and fast.
Simple, predictable endpoints for sending and verifying OTPs.
Go from signup to live OTPs in about five minutes.
Native SDKs for Node.js, Python, Go, and Java.
Per-message status for every OTP sent across all channels.
Automatic fallback routing if a channel or carrier fails.
TLS 1.3 in transit, AES-256 at rest, on every code.
Live dashboards and webhooks for every send and verify event.
99.99% uptime SLA with redundant, multi-region infrastructure.
Get free credits to test all three channels. No card required. Live in one day.
Everything you need to know about SMS, Email, and WhatsApp OTP verification.
It depends on your users. SMS works on every phone with no app required, Email suits web-first flows that need an audit trail, and WhatsApp offers the highest open and read rates where your users are already active. Most businesses use two or all three as fallback channels for maximum delivery.
SMS OTPs typically arrive in 150โ200ms, WhatsApp OTPs are delivered and read within seconds thanks to push notifications, and Email OTPs land in the inbox in under 5 seconds with our authenticated sending infrastructure.
Yes. We use official WhatsApp Business API authentication templates, which are pre-approved by Meta and don't require the recipient to save your business number to receive a message.
Yes. OTP length (4โ10 digits), expiry window (30 seconds to 1 hour), character set (numeric or alphanumeric), and the message template are all configurable per request or globally across your account.
We monitor request velocity, geographic anomalies, device changes, and IP reputation in real time. Suspicious patterns trigger automatic rate limits or blocks based on the rules you configure.
Yes. Our infrastructure is built to SOC 2 Type II, PCI DSS, ISO 27001, HIPAA, and GDPR standards, with every OTP transmission encrypted and every transaction logged for audit trails.
Yes. Cubicles OTP works as an additional 2FA layer on top of your existing password-based login, or as a full replacement for passwords in a passwordless authentication flow.
Pricing is pay-per-OTP, starting from โน0.50 per OTP in India and scaling down with volume. There are no setup fees, no per-seat charges, and no hidden costs โ you only pay for what you send.
Most teams integrate and send their first OTP within 5 minutes using our REST API, and go fully live in production within a day using our SDKs for Node, Python, Go, and Java.
Our system automatically retries on backup carrier routes for SMS and alternate delivery paths for Email and WhatsApp. Delivery status is available in real time through the dashboard and webhooks.
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CUBICLES CODERS PVT LTD