Sub-Second Delivery
OTPs are dispatched over priority transactional routes and typically reach the recipient's handset in under 3 seconds.
Deliver one-time passwords in under 3 seconds. Transactional route bypasses DND filters — every user gets their OTP, every time, with 99.9% delivery uptime.

10K+
Businesses trust us for every message they send.
OTP SMS service delivers One-Time Passwords — short-lived numeric codes used to authenticate users during login, payment authorisation, account verification, and other sensitive actions. Unlike standard promotional messages, OTPs travel via the transactional route and reach every recipient, including DND-registered numbers, within seconds.
In India, OTP SMS is classified as a critical transactional message under TRAI guidelines. Senders must register their entity, approved sender ID, and message template on the DLT (Distributed Ledger Technology) platform before any OTP can be delivered. Learn about the DLT registration process →
Get Click Media routes your OTPs through carrier-grade infrastructure with sub-second delivery, automatic retries, and real-time delivery receipts — so your users never wait and your conversions never drop.

Everything you need to deliver OTPs reliably, compliantly, and at scale across India.
OTPs are dispatched over priority transactional routes and typically reach the recipient's handset in under 3 seconds.
We handle your TRAI DLT entity, sender ID, and template registration — ensuring your OTPs bypass DND filters legally.
Send OTPs with a single API call. SDKs available for Node.js, Python, PHP, and Java. Go live in under an hour.
Failed deliveries are automatically retried across alternate telecom routes to maximise the chance of successful OTP delivery.
Track every OTP — sent, delivered, failed — in real time from your dashboard or via webhook callbacks.
Round-the-clock support via phone, email, and WhatsApp. Average response time under 2 minutes.
Secure login OTPs, fund-transfer authentication, credit card approvals, and NBFC loan disbursement confirmations.
Guest checkout verification, new account sign-ups, high-value order confirmations, and return initiation OTPs.
Student portal login, exam registration verification, and parent app authentication via one-time password SMS.
Patient portal login, teleconsultation access codes, prescription delivery confirmation, and lab result release OTPs.
Site visit booking confirmation, digital agreement signing verification, and payment release authentication.
Passwordless login, 2FA for sensitive actions, new device verification, and team member onboarding codes.
From signup to your first OTP delivery in 4 easy steps.
Create your account in under 2 minutes. No credit card required to start your OTP SMS integration.
We assist you with TRAI DLT registration — entity, transactional sender ID, and OTP template approval. Learn about DLT compliance.
Add our REST API or SDK to your app. Trigger an OTP with a single HTTP call — your users receive it in seconds.
Track delivery receipts in real time from your dashboard. Scale from 100 to 10 million OTPs without changing a line of code.
No hidden charges. DLT assistance included in all plans.
Up to 10,000 OTPs/month
Up to 1,00,000 OTPs/month
Unlimited OTPs
Prices shown are indicative. Final pricing depends on volume, route, and contract terms. All prices exclusive of GST. DLT charges may apply as per TRAI guidelines.
All OTP SMS sent in India must travel via the transactional route under TRAI's DLT (Distributed Ledger Technology) framework, effective March 2021. The good news: the transactional route is DND-exempt — your OTPs reach every registered user, regardless of their DND status, 24×7.
Even though OTPs are service messages, TRAI still requires the sending entity, sender ID, and OTP message template to be pre-approved on an authorised DLT portal (Airtel, Jio, Vi, BSNL, Tata, Videocon, or Tanla). Messages with unregistered templates are scrubbed by telecom operators before delivery.
Join 10,000+ businesses across India. Get a free demo and complete DLT registration assistance — no commitment required.
No credit card required · DLT assistance included · Go live in 24 hours
