DLT & Non-DLT Dual Gateway • High-Throughput Interconnect

Ultra-Fast OTP &
Bulk SMS Gateway

Deliver mission-critical OTPs, transactional alerts, and bulk campaigns over both DLT Compliant and Non-DLT Open Channels with sub-2s latency and 99.99% guaranteed SLA.

Start Sending Now ₹5 Free API Documentation

DLT & Non-DLT Routes

Sub-2s Latency

Instant UPI Top-up

Live Gateway Telemetry

SMPP v3.4 Active

Dispatch Queue +4,200 msg/min

Average Latency < 1.20 sec Sub-2s Direct Pipe

Carrier Gateway Routing Adaptive AI Load Balancer

Airtel 99.8%

Jio 99.9%

Vodafone 99.7%

BSNL 99.6%

Instant OTP Dispatch Sandbox Simulate live carrier interconnect

200 OK Live

+91

Direct SS7 SMPP Pipeline Ready

Click the button above to test carrier routing speed and view simulated handset SMS delivery.

Telecom Dispatch Pipeline:

1. SMPP Carrier Handshake

2. DLT Template Validated

3. Delivering to Handset

Messages • Just Now

VK-GOSMSI SIM 1 • DLT Approved

Your OTP is . Valid for 5 mins. Do not share.

99.99% Uptime SLA Guaranteed

< 1.5s Average Delivery Speed

10M+ Daily SMS Processed

DLT & Non-DLT Dual Route Architecture

Enterprise Infrastructure

Engineered for Both DLT Compliant & Non-DLT Messaging

Whether you need 100% TRAI DLT-approved corporate sender IDs or instant Non-DLT open routes with zero paperwork, we have you covered.

DLT Compliant Enterprise Route

Full automated support for Principal Entity IDs, Header Sender IDs, and DLT Content Templates with 100% TRAI compliance for banking and corporate alerts.

Non-DLT Instant Open Routes

Zero DLT registration friction. Instant startup activation, open dynamic sender IDs, global reach, and rapid bulk SMS dispatch without template approvals.

Dynamic OTP Acceleration

Automated multi-carrier routing redirects message queues to the fastest telecom pipe in milliseconds for peak authentication speed and high conversions.

Instant Automated UPI Wallet

Instant automated wallet top-up via dynamic UPI QR codes (GPay, PhonePe, Paytm, BHIM), real-time balance crediting, and automated GST billing invoices.

Ultra-Simple REST API

Single-endpoint HTTP GET & POST JSON APIs with sub-50ms server response times, ready SDKs, Bearer token security, and comprehensive webhooks.

Whitelabel Reseller Tier

Launch your own SMS reseller portal under your custom domain, brand logo, custom pricing rates, wholesale profit margins, and multi-tier sub-user tree.

Transparent Wholesale Rates

Interactive Volume Pricing Calculator

Pay only for what you send with tier-based volume discounts. No setup fees, no monthly maintenance charges.

Selected SMS Volume

1,000 SMS 50,000 SMS 100,000 SMS 200,000+ SMS

Unit Cost Per SMS DLT Transactional Route

Total Investment Standard Base Rate

Ready to Start? Create Account

Developer First Architecture

Carrier-Grade REST API Integration in Under 5 Minutes

Single-endpoint JSON APIs with sub-50ms server response times, SHA-256 token authentication, dynamic DLT template bindings, and instant delivery webhooks.

Sub-50ms API

Ultra-low server latency

Live Webhooks

Real-time status callbacks

Encrypted Auth

Secure Bearer tokens

Explore Full API Docs Get API Credentials

Whitelabel Business Opportunity

Launch Your Own Whitelabel SMS & OTP Portal

Become an official Reseller or Master Reseller partner. Host your portal on your own domain, set your own pricing tiers, and manage your clients seamlessly.

Apply for Reseller Master Reseller Tier

Frequently Asked Questions

Got Questions? We Have Answers.

Yes, we support both DLT and Non-DLT routes! (1) DLT Approved Route: Fully compliant with TRAI regulations for enterprises with registered Entity IDs, Header Sender IDs, and Content Templates. (2) Non-DLT Open Route: Instant activation with zero paperwork or template registration friction, ideal for developers, startups, marketing broadcasts, and global SMS delivery.

Yes, as per TRAI guidelines, DLT (Distributed Ledger Technology) registration is mandatory for all commercial and transactional SMS in India. Our support desk assists you with end-to-end Entity, Header, and Template approvals. If you do not have DLT, you can also use our instant Non-DLT open route!

Our high-throughput carrier direct pipelines deliver OTP codes in an average of 1.2 to 1.8 seconds. Our adaptive load balancers ensure uninterrupted speeds even during peak festive rushes.

You can add wallet credits instantly using automated Aerio Pay UPI QR codes (GPay, PhonePe, Paytm, BHIM) or offline bank NEFT/IMPS transfers. Credits are credited instantly upon payment confirmation.

No! All purchased wallet balance credits come with lifetime validity and never expire.

Free Instant Signup Bonus

Ready to Experience Lightning-Fast Messaging?

Join thousands of businesses and developers powering their authentication, notifications, and campaigns with GoSMS.

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Enterprise SMTP & Email Gateway ₹0.10/Email

High-Speed SMTP & Email Delivery Engine

Connect your apps, websites, and business platforms to India's lowest-cost, carrier-grade Email Gateway. Deliver OTPs, invoices, security alerts, and marketing flyers with 99.99% uptime.

From ₹0.40/SMS

Carrier-Grade SMS Gateway

Sub-2s OTP delivery with instant failover across major telecom operators. 100% DLT compliant.

1.2s Fast Delivery API Docs →

From ₹0.30/msg

Official WhatsApp Cloud API

High-engagement rich media alerts, interactive CTA buttons, and verified brand badge support.

99.8% Open Rate API Docs →

Lowest Cost ⚡

₹0.10 / Email

Dedicated SMTP & Email API

Ultra-fast inbox delivery for OTPs, billing invoices, password resets, and promotional flyers with 200+ stock templates.

200+ Stock Templates Try Email API →

Instant OTP & Auth

Sub-second email OTP delivery via dedicated high-reputation IP routes.

Invoices & Receipts

Automate billing statements and payment receipt dispatches with customizable line items.

200+ Stock Templates

Pre-designed luxury 3D, gradient, and festive templates with 1-click variable replacement.

Multi-Server Redundancy

Intelligent round-robin & failover across multiple SMTP nodes ensuring zero delivery drops.

Ready to integrate Email & SMTP Gateway?

Get started in minutes with our simple REST API and sandbox credentials.

Read API Docs Create Free Account

Ultra-Fast OTP & Bulk SMS Gateway