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OTP + Verification · Multi-Channel Authentication

One Code Finds

Help users complete sign-in, registration, account recovery and sensitive actions with configurable verification across eligible channels. Build clear expiry, retry, fallback and delivery-event rules around one secure customer moment.

Design My OTP Flow See Verification Journey
🔐 Configurable Expiry ↪ Smart Fallback ⌁ API + Webhooks
Interactive verification planner

Set the Rules. Choose the Right Verification Path.

Select expected monthly requests, primary channel, fallback route and code-expiry window. The configuration brief updates instantly.

Design your OTP journey

Create a useful technical starting brief for your Growth Disha verification consultation.

Monthly verification requests10,000
1K10K50K2L10L
Primary delivery channelSMS
Fallback channel
OTP expiry window

Your verification brief

Architecture guidance changes with traffic, channel and fallback complexity. Security controls and final capacity require technical confirmation.

Monthly requests10KExpected verification traffic
Primary routeSMSFirst eligible channel
Fallback routeWhatsAppConfigured alternate path
Expiry window5 minutesCode validity period
Suggested configurationGrowth VerifyPrimary plus fallback route with webhook event planning

This planner creates a technical brief, not a guaranteed delivery or security outcome. Identity logic, route eligibility, consent, templates, DLT requirements, rate controls, application security and applicable regulations are confirmed during consultation.

Send Brief on WhatsApp
Verification with direction

More Than an OTP Message. A Complete Trust Journey.

Connect the code request, eligible route, security rules, verification event and product experience.

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Unified Verification APIs

Request and verify codes through clear application workflows with delivery and verification events.

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Multi-Channel Fallback

Plan an approved alternate route when a primary delivery condition is not met within configured rules.

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Expiry & Resend Controls

Configure code validity, resend cooldown, attempt limits and rate controls for your use case.

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Abuse-Aware Guardrails

Use request throttling, attempt limits and risk signals as part of a wider application-security design.

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Template & Sender Mapping

Align approved message templates, sender identity and channel requirements with each verification flow.

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Events, Logs & Webhooks

Observe request, delivery and verification events and connect outcomes with your product backend.

From request to trusted action

Every Verification Moves Through Five Clear Milestones

1

User Requests a Code

Your application starts an eligible verification event for a defined action.

2

Rules Are Evaluated

Channel, template, rate, expiry and risk conditions determine the next step.

3

OTP Is Routed

The primary route attempts delivery and an approved fallback may follow.

4

Code Is Verified

Your backend confirms the submitted code, expiry and allowed attempts.

5

Outcome Returns

A verification event lets the product continue, reject or request a new flow.

Product-ready use cases

One Verification Layer. Many Critical Moments.

Use OTP where your product needs to confirm control of an eligible destination or protect a sensitive action.

Registration & Sign-In

Verify a user's destination during account creation, passwordless sign-in or step-up authentication.

Password Reset

Add a time-limited verification step before an approved account-recovery action.

Transaction Confirmation

Support sensitive payment or financial actions as part of a wider risk and authentication design.

Order & Delivery Actions

Confirm selected order changes, high-value delivery actions or customer handovers.

Student & Applicant Access

Verify destinations for portal registration, application updates and account recovery.

Profile & Device Changes

Add verification before eligible email, mobile, device or security-setting changes.

Security + user experience

Protect the Action. Keep the Journey Clear.

A strong OTP flow is understandable, time-bound and resistant to repeated abuse. It tells the user what is happening without revealing sensitive system details.

OTP is one control, not a complete security system. Your business remains responsible for identity design, application security, fraud controls, data handling, user consent, message templates and regulatory compliance.

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Use a clear, limited validity windowExpire codes promptly and explain when the user may request another.
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Control retries and resendsUse cooldowns, attempt limits and throttling to reduce accidental and abusive traffic.
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Never ask users to share an OTPKeep templates unambiguous and educate users that codes are confidential.
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Protect verification dataLimit logs, access and retention while securing APIs, webhooks and backend validation.
FAQ

OTP & Verification, Explained Clearly

An OTP API lets your application request and verify a one-time code for defined actions such as sign-in, registration, password reset, payment confirmation or account recovery.

A journey can be configured across eligible SMS, WhatsApp, voice and email routes depending on the use case, destination, consent, approved template and regulatory requirements.

Fallback attempts an approved secondary route when the primary delivery condition is not met within configured rules. This helps the user continue without repeatedly restarting the verification flow.

Yes. Code validity, resend cooldowns, allowed attempts and request-rate controls can be configured around your application's security and user-experience needs.

Yes. REST APIs and webhooks can connect request, delivery and verification events with your website, mobile app or backend system.

No. OTP should be one part of a broader identity and application-security design that may include secure sessions, risk checks, device signals, rate limits, monitoring and recovery controls.

Pricing depends on selected channels, destinations, route type, traffic volume, templates, fallback rules, integration scope and support. Use the planner above to prepare a tailored quotation brief.

Give Every Verification the Right Route. 🏹

Share your monthly request volume, application use case and preferred channels. We will help map a clear OTP and fallback journey.

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