Unified Multi-Channel API
One REST API to send SMS, RCS, WhatsApp and Voice — no separate integrations.
India's Most Trusted Bulk SMS, RCS & Voice API Platform
DLT-compliant Bulk SMS, RCS Business Messaging, WhatsApp Business API and Voice OTP/IVR — connected through APIs and webhooks.
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Your order #YR28471 has shipped. Track it at example.com/t/28471
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Hello! 👋 Your order #YR28471 has shipped and arrives Tue, 12 Mar.
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Diwali SaleHappy Diwali from Your Brand ✨
Light up the season with festive offers on gifts and hampers.
Shop the sale View gift hampers🎁 Gift ideas📍 Find a store
RCS message
Illustrative examples
TRAI DLT Compliant
DLT registration assistance and configuration of your operator-approved headers and templates, built for Indian regulations.
Real-Time Webhooks
Instant delivery reports, read receipts, and event callbacks to keep your systems in sync.
User-Friendly Dashboard
Manage campaigns, templates, reports, and API keys from one clean, intuitive console — no steep learning curve.
Trusted by businesses across India
Communication Channels
All Channels. One Platform.
Reach your customers on SMS, RCS, WhatsApp, and Voice — with real-time webhooks from a single unified API and dashboard.
Bulk SMS & Transactional Messaging
An SMS gateway with direct operator connections, DLT-compliant delivery, and OTP verification routes. Send promotional, transactional, and alert messages at scale.
- DLT registration assistance and configuration of operator-approved headers & templates
- Direct routes to Jio, Airtel, Vi & BSNL
- Unicode support for regional languages
- Real-time delivery reports via API webhooks
RCS Business Messaging
Rich messaging in the phone's default messaging app, where the device, network and service support it. Send cards, carousels, media and suggested replies.
- Rich cards, carousels & suggested actions
- Brand name and logo after brand verification and launch
- Read receipts & typing indicators
- SMS fallback when configured
WhatsApp Business API
Official WhatsApp Business API for customer support, notifications, and marketing. Two-way conversations, template management, and chatbot integration for Indian businesses.
- Green tick verification assistance
- Template & session message management
- Two-way customer conversations
- WhatsApp Commerce & chatbot ready
Voice Calls — OBD & IVR
Outbound dialers, IVR systems, and voice OTP for secure authentication. Engage customers in Hindi, English, and 10+ regional languages across India.
- Voice OTP for secure verification
- Outbound dialer (OBD) campaigns
- Multi-level IVR with regional language support
- Call recording & analytics
Webhooks & Event Callbacks
Receive real-time delivery updates, read receipts, and inbound message events on your server. Secure, reliable callbacks built for production integrations.
- Instant DLR & delivery status callbacks
- HMAC-signed payloads for secure verification
- Automatic retries with exponential backoff
- JSON events for SMS, RCS, WhatsApp & Voice
Platform Capabilities
Everything You Need to Communicate
From bulk campaigns to developer APIs — a complete suite for Indian businesses of every size.
Bulk SMS
High-volume promotional & transactional SMS with pan-India DLT compliance and real-time delivery reports.
Explore Bulk SMS →RCS Messaging
Rich interactive messaging with media, carousels and suggested replies, with your brand shown after verification and launch.
Explore RCS Messaging →WhatsApp API
Official WhatsApp Business API for notifications, support and commerce, with green tick application assistance.
Explore WhatsApp API →Easy Integration & API
Developer-friendly APIs for seamless integration with your existing systems.
API Overview →DLT Registration
Free DLT registration assistance for all businesses, including non-customers. Applicable operator fees are separate. Approvals are handled by the operator’s DLT platform.
We help with entity, header and template submissions.
Get Free DLT Support →AI Chatbots
Intelligent bots for 24/7 support on WhatsApp, SMS, and web — in Hindi, English & regional languages.
Discuss a chatbot →Voice (OBD/IVR)
Outbound dialers, IVR, and voice OTP with multi-language support across India.
Voice services →DLR Webhook
Real-time delivery reports pushed to your server — instant DLR callbacks with secure, signed JSON payloads.
Read the DLR guide →Why SMSTAKE
India's Most Trusted CPaaS Partner
Built for Indian businesses with direct operator connections, TRAI compliance, and infrastructure that scales from startup to enterprise.
Request a DemoReliable Delivery
Direct routes to all major Indian telecom operators
Real-time Analytics
Live dashboards with delivery & engagement metrics
AI Automation
Smart chatbots and workflow automation
24/7 Support
Our India team is here to help, 24/7
API Integration
Easy Integration & API
Developer-friendly APIs for seamless integration with your apps, CRM and website.
- One REST API for SMS, RCS, WhatsApp & Voice
- Sandbox access and onboarding support — integrate before you go live
- Webhooks for real-time delivery and status updates
- Clear docs and India-hosted infrastructure
Docs: Developer portal · SMS API · RCS API · Voice API · WhatsApp API · SDKs and Postman · DLR webhooks · Node.js & Python receivers · Blog guides
Request a DemoREST API
Send SMS, RCS, WhatsApp and Voice messages over HTTPS
SMPP Gateway
Connect high-volume and existing SMPP systems
Webhooks
Delivery and status updates sent to your endpoint
Onboarding Support
API access is provided after onboarding and required approvals
Industries
Powering India's Leading Sectors
BFSI
OTP, transaction alerts & loan notifications
E-Commerce
Order updates, COD confirmation & promotions
EdTech
Admissions, class reminders & result alerts
Healthcare
Appointment reminders & lab report alerts
Logistics
Shipment tracking & delivery OTP
Government
Citizen alerts, schemes & public notices
Definitions
Key Terms & Services
Clear definitions of SMSTAKE products and industry terms — structured for businesses and developers across India.
- SMSTAKE
- India's CPaaS platform for Bulk SMS, RCS, WhatsApp Business API, Voice, and API integration — operated by 1By0 Solutions, Hyderabad.
- Bulk SMS
- High-volume text messaging for promotional campaigns and transactional alerts, routed through TRAI DLT-approved templates and sender IDs.
- OTP SMS
- One-time password messages sent on priority transactional routes for login, payment, and verification flows.
- RCS Business Messaging
- Rich Communication Services — interactive brand messages with media, carousels and suggested replies on supported devices, with brand identity shown after verification and launch.
- WhatsApp Business API
- Official Meta API for template notifications, two-way support, and commerce at business scale (not the regular WhatsApp app).
- DLT Registration
- TRAI-mandated Distributed Ledger Technology registration for commercial SMS in India — entity, header, and template approval.
- API Integration
- Connecting your app, CRM, or website to SMSTAKE via REST APIs to send and track messages programmatically.
FAQ
Frequently Asked Questions
What services does SMSTAKE offer in India?
SMSTAKE is an India-based CPaaS platform specializing in DLT-compliant Bulk SMS, RCS Business Messaging, official WhatsApp Business APIs, and Voice/IVR solutions via unified REST APIs.
Do you provide customised solutions?
Yes, SMSTAKE builds customized messaging, webhook integrations, and scalable CPaaS workflows tailored to your specific enterprise requirements.
How does DLT registration work?
TRAI DLT registration is mandatory for commercial messaging in India. SMSTAKE provides free DLT registration assistance to help businesses set up Principal Entity accounts, headers, and templates.
Can I use all APIs from a single integration?
Yes, you can access and manage Bulk SMS, RCS, WhatsApp Business API, and Voice workflows through unified REST APIs and a centralized dashboard.
How can I get API access?
You can request a demo or sign up on smstake.com to get immediate assistance with your API credentials, sandbox testing, and onboarding.
Which cities and states do you cover?
SMSTAKE offers pan-India coverage across all states and union territories with direct operator connections to Jio, Airtel, Vi, and BSNL.
What is RCS Business Messaging?
RCS Business Messaging upgrades the native text inbox with rich cards, carousels, verified sender logos, and interactive action buttons.
What is the difference between Bulk SMS and RCS?
Bulk SMS delivers simple text notifications universally to almost any phone. RCS adds brand branding, rich media cards, and buttons on supported devices and networks.
How does OTP SMS work in India?
OTP SMS requires a DLT-registered transactional template and approved header. SMSTAKE provides dedicated priority routes with webhook delivery reports for real-time verification.
Get in Touch
Let's Build Your Communication Strategy
Whether you need API access, a product demo, or a customised enterprise solution — our India team is here to help, 24/7.
Email
info@smstake.com
Sales
+91 92916 26436
Support
+91 88854 66255
Address
1By0 Solutions, 2nd Floor, Sriven Mall, Miyapur Rd, Jaya Prakash Narayan Nagar, Miyapur, Hyderabad, Telangana 500049
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