SMS, WhatsApp, RCS, Voice, Email โ all from one unified platform with a single API.
Bulk SMS
India's fastest bulk SMS delivery
Send promotional, transactional, and alert SMS at scale. With direct operator connectivity, we guarantee delivery even during peak traffic. Fully TRAI DLT compliant with automatic template management.
Promotional & transactional routes
Real-time delivery reports & analytics
Unicode support for regional languages
Scheduled campaigns & automation
Sender ID customization
Opt-out management built-in
500+
Operator Routes
<2s
Avg Delivery Time
99.5%
Delivery Rate
โน0.10
Starting Price
Sample SMS
FROM: STPLHB
Dear Gulpreet, your order #ORD8821 has been shipped. Track at smsgatewayhub.com/track - STPL
OTP Delivery Performance
Airtel1.2s avg
Jio1.5s avg
Vi (Vodafone-Idea)2.1s avg
BSNL2.8s avg
OTP SMS
Sub-3-second OTP delivery
Critical authentication messages delivered in under 3 seconds to any Indian operator. Our priority routing ensures your OTPs never fail, with automatic fallback to alternate routes.
Guaranteed <3 second delivery
Priority routing across all operators
Automatic failover & retry logic
99.99% delivery SLA for OTP route
DTMF voice OTP fallback option
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WhatsApp Business API
Official Meta BSP. Marketing (โน0.88), Utility (โน0.115), Auth (โน0.115), Service (FREE). Rich media & chatbots included.
Full details โ
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RCS Messaging
Next-generation SMS with rich cards, carousels, verified sender branding, and HD media on Android & iOS.
Full details โ
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Voice SMS & IVR
Automated outbound calls, press-1 campaigns, DTMF OTP, and full IVR flows with Cloudtelephoniq.
View pricing โ
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International SMS
Send SMS to 190+ countries. Local sender IDs, competitive rates, and real-time delivery tracking worldwide.
Get rates โ
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Email Marketing
Personalized bulk email with templates, scheduling, A/B testing, and delivery analytics. DKIM & SPF ready.
Learn more โ
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Missed Call Service
Quickest lead generation tool. Customer calls your number, system hangs up and triggers your workflow instantly.
Learn more โ
Ready to connect with your customers?
Get a free demo and see all channels in action.
WhatsApp Business API
Official Meta BSP Partner
Connect with customers on India's most-used messaging app. Verified sender, rich media, chatbots โ all in one platform.
Why WhatsApp API
Where your customers already are
With 500M+ WhatsApp users in India, businesses that communicate on WhatsApp see 40% higher engagement than SMS. As an official Meta Business Solution Provider, we give you verified access with green tick branding.
Official Meta BSP โ verified green tick
Two-way conversations & chatbot support
Rich media: images, videos, documents, buttons
Interactive list messages & quick replies
Product catalog & cart messages
Template messages with dynamic variables
Webhook integration for real-time events
WhatsApp Message Preview
SMSGATEWAYHUB โ
๐ Exclusive Offer! Get 25% off on your next bulk SMS recharge. Use code SAVE25 at checkout.
Valid till: 31 May 2025
Redeem Now
Not Interested
SMSGATEWAYHUB โ
๐ Your OTP is 847291 Valid for 5 minutes. Do not share.
Respond to customer-initiated messages within 24 hours
User initiated
24-hour session window
All media types
No template needed
DLT: โน5,900 total. Error 5101 = template mismatch (not auth error). Rates subject to Meta India policy.
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Chatbot Integration
Build intelligent chatbots using our webhook API. Works with Dialogflow, custom NLP, and more.
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Template Management
Create, submit, and manage WhatsApp message templates directly from the dashboard.
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Read Receipts
See delivery and read status for every message. Understand engagement in real time.
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CRM Integration
Connect with Salesforce, Zoho, HubSpot, and 100+ tools via Zapier or direct API.
Go live on WhatsApp today
Setup in 24โ48 hours. Dedicated onboarding support included.
RCS Messaging
The future of business messaging
Rich Communication Services โ SMS upgraded with images, carousels, buttons, and verified branding. Now on Android & iOS.
What is RCS?
SMS with superpowers
RCS (Rich Communication Services) is the next-generation SMS standard supported by Google. It transforms plain text SMS into rich, interactive experiences โ without requiring a separate app download.
Available on Android (Google Messages) & iOS (iOS 18+)
Verified sender with business branding & logo
Rich cards, carousels, and suggested replies
HD images, videos, and file sharing
Interactive buttons and quick actions
Read receipts and typing indicators
Automatic SMS fallback for unsupported devices
Web view and deep link support
RCS Message Preview
SG
SMSGatewayHub
โ Verified Business
๐
Diwali Special Offer!
Get 30% cashback on all recharges above โน1000. Limited time offer for valued customers.
Recharge Now
Learn More
Message Types
Four powerful categories
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Marketing
Promotional campaigns with rich visuals, carousels, and call-to-action buttons. Perfect for offers, product launches, and seasonal campaigns.
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Transactional
Order confirmations, shipping updates, payment receipts, and account notifications with rich formatting and interactive elements.
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Authentication / OTP
Secure OTP delivery with auto-fill support and branded sender. Higher trust than plain SMS leading to better conversion.
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Customer Support
Two-way conversations for customer service with quick reply buttons, file sharing, and escalation to live agents.
RCS vs SMS vs WhatsApp
How RCS compares
Feature
Plain SMS
RCS โ
WhatsApp
App required
โ No
โ No (native)
โ Yes
Rich media
โ No
โ Yes
โ Yes
Verified branding
โ No
โ Yes
โ Yes
Works on iOS
โ Yes
โ iOS 18+
โ Yes
SMS fallback
โ N/A
โ Auto
โ No
Analytics
โ Basic
โ Full
โ Full
Launch RCS for your business
Early adopters see 3x higher engagement. Get started today.
Pricing
Simple, transparent pricing
No setup fees. No hidden charges. Pay only for what you send. Volume discounts available.
SMS Plans
Choose your plan
Starter
โน0.16/SMS
Minimum โน500 recharge
Promotional SMS
Transactional SMS
REST API access
Excel plugin
Email support
Growth
โน0.12/SMS
Minimum โน5,000 recharge
All Starter features
OTP SMS access
WhatsApp API
Dedicated account manager
Priority support 24ร7
Advanced analytics
Enterprise
โน0.10/SMS
Custom volume pricing
All Growth features
RCS Messaging
Custom sender ID
White-label options
SLA guarantee 99.9%
Custom integration support
Channel Pricing
All channels, clear rates
SMS Routes
Transactional SMSโน0.12โโน0.16
Promotional SMSโน0.10โโน0.14
OTP SMSโน0.14โโน0.18
International SMSCustom rates
Other Channels
WhatsApp Marketingโน0.88
WhatsApp Utility/Authโน0.115
WhatsApp ServiceFREE
Voice SMSโน0.25โโน0.45
All prices exclude GST. DLT registration: โน5,900 one-time. Volume discounts available for 1M+ messages/month.
FAQ
Pricing questions answered
Is there a minimum purchase or commitment?โผ
No long-term commitment required. Starter plan begins at โน500 recharge. Credits never expire. Pay as you go.
What is DLT registration and is it mandatory?โผ
DLT (Distributed Ledger Technology) registration is mandatory as per TRAI regulations for all businesses sending commercial SMS in India. The one-time fee is โน5,900. We guide you through the entire process for free.
Are GST invoices provided?โผ
Yes, GST invoices are automatically generated for every recharge and available in your dashboard. Our GSTIN is available on the invoice for input tax credit.
Can I get a custom rate for high volume?โผ
Yes. Businesses sending 1 million+ messages per month can negotiate custom rates. Contact our sales team at 1800 102 1822 for enterprise pricing.
What payment methods are accepted?โผ
We accept UPI, NEFT/RTGS, credit/debit cards, net banking, and bank transfers. Enterprise clients can opt for monthly invoicing.
Get custom pricing for your business
High volume? Our sales team will create a package just for you.
RESTful API with SDKs for PHP, Python, Node.js, Java, Ruby & more. Integrate in under 2 hours.
API Reference
Endpoints
POST/api/v2/sendsms
Send single or bulk SMS messages
GET/api/v2/report
Get delivery report by message ID
POST/api/v2/otp/send
Send OTP with auto-generated code
POST/api/v2/otp/verify
Verify OTP entered by user
GET/api/v2/balance
Check account balance & credits
POST/api/v2/whatsapp/send
Send WhatsApp template message
Base URL
https://api.smsgatewayhub.com
Authentication
All API calls require your API Key and User ID passed as query parameters or in the request body. Find your credentials in the dashboard under Settings โ API.
Free sandbox access. No credit card required to start testing.
About SMSGatewayHub
India's most trusted messaging partner
STPL has been powering business communications since 2008 from Indore, Madhya Pradesh. ISO 9001:2015 certified.
Our Story
15+ years of reliable messaging
SMSGatewayHub (STPL โ Saucer Technology Pvt Ltd) was founded in Indore with a simple mission: make business communication simple, reliable, and affordable for every Indian business.
From a small team handling a few hundred SMS a day, we've grown to process hundreds of millions of messages monthly for 10,000+ businesses across industries including banking, e-commerce, healthcare, logistics, and education.
Today, we offer India's most comprehensive messaging stack โ Bulk SMS, OTP, WhatsApp Business API, RCS, Voice, and Email โ all under one platform, with direct telecom operator connections for the fastest delivery in the country.
2008
Founded in Indore
10K+
Active Clients
500M+
Monthly Messages
190+
Countries Covered
Our Journey
Milestones
2008
Founded in Indore
STPL launched with bulk SMS services for local businesses in Madhya Pradesh.
2012
National Expansion
Expanded to serve businesses across all Indian states. Direct operator tie-ups established.
2016
ISO 9001 Certification
Achieved ISO 9001:2015 certification, confirming enterprise-grade quality standards.
2019
WhatsApp Business API
Became official Meta Business Solution Provider. Launched WhatsApp API for businesses.
2023
RCS Launch
Launched RCS Messaging Solutions in India, supporting all 4 message categories via Google.
2025
10,000 Clients Milestone
Crossed 10,000 active businesses and 500M+ monthly messages. Now serving 190+ countries.
Certifications
Enterprise-grade compliance
ISO 9001:2015 Certified
TRAI DLT Registered
Meta Official BSP
SSL Secured Platform
DPDP Act Compliant
โ โ โ โ โ
"STPL has been our messaging backbone for 6 years. Never a major downtime. Their support team resolves issues in minutes."
Vikram Singh
VP Technology, NBFC ยท Delhi
โ โ โ โ โ
"We process 2 lakh OTPs daily through their platform. 99.9% delivery is not just a claim โ it's what we see every single day."
Deepika Rao
Head of Engineering, E-commerce ยท Hyderabad
Join 10,000+ businesses who trust STPL
From startups to enterprises โ we have the right plan for you.
Knowledge Hub
Messaging insights & guides
Stay updated with the latest in SMS, WhatsApp, RCS, and business communication trends.
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WhatsApp
WhatsApp Business API Pricing Changes โ Meta India July 2025
Complete breakdown of the new per-message pricing: Marketing โน0.88, Utility โน0.115, Auth โน0.115, Service FREE.
May 2025 ยท 8 min read
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RCS
RCS Messaging vs SMS vs WhatsApp โ Which is Right for Your Business?
Detailed comparison of all three channels โ features, pricing, reach, and when to use each one.
Apr 2025 ยท 10 min read
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OTP & Security
WhatsApp Error 5101 Explained โ Template Mismatch, Not Auth Error
If you're seeing error 5101, it's a template content mismatch โ not an authentication problem. Here's how to fix it.
Mar 2025 ยท 5 min read
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TRAI & DLT
Complete DLT Registration Guide for Businesses in India 2025
Step-by-step guide to TRAI DLT registration โ entity registration, sender ID, and template approval.
Feb 2025 ยท 12 min read
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API & Dev
How to Integrate SMS OTP in Your ASP.NET Web Forms App
A developer's guide to integrating SMSGatewayHub API with ASP.NET โ ClaudeChat.ashx handler walkthrough.
Jan 2025 ยท 15 min read
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Bulk SMS
10 SMS Marketing Best Practices That Actually Drive Results in 2025
From timing to personalization โ proven tactics that top Indian brands use to maximize SMS ROI.
Dec 2024 ยท 7 min read
Contact Us
Let's talk messaging
Sales, support, or just a question โ our team is here to help. Response within 2 hours.