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Enterprise CPaaS Platform Cloud-Native Infrastructure

The Only CPaaS Platform
Indian Businesses Need

A2ZSMS is a Communications Platform as a Service (CPaaS) delivering SMS, SMPP, WhatsApp Business API, RCS, and Bulk Voice — each as a production-ready product — built for scale on cloud-native infrastructure.

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TRAI DLT Compliant
Meta BSP Verified
AES-256 Encrypted
99.9% SLA Uptime

Platform Live Stats

3,000+
SMS per Second (TPS)
500M+
Messages Delivered
99.9%
Platform SLA Uptime
10K+
Active Business Clients
<200ms
Avg API Response Time
18+
Telecom Operator Routes
What We Offer

5 Channels. One Cloud Platform.

A2ZSMS delivers SMS, SMPP gateway, WhatsApp Business API, RCS Messaging, and Bulk Voice Call as standalone, production-ready products — each with its own portal, API, and reporting. A unified All-in-One dashboard is on our roadmap.

Coming Soon: All-in-One Dashboard — manage every channel from a single login
SMS

SMS Portal

Web-based bulk SMS campaign platform

Cloud-hosted SMS portal for promotional and transactional campaigns. Supports DLT-registered sender IDs, contact segmentation, real-time delivery reports, and webhook callbacks.

DLT sender ID & template management
CSV / API contact upload
Real-time delivery & click tracking
Promotional & transactional routing
Architecture

Built for Enterprise Scale

A2ZSMS is engineered on a cloud-native, microservices architecture — designed to handle millions of messages per day without compromising reliability.

Your App / CRM
A2ZSMS REST API / SMPP
Message Router
Operator / BSP / Carrier
End User

Every message flows through intelligent routing, compliance checks, and operator selection in under 200ms

Multi-Tenant SaaS

Isolated per-tenant data with shared infrastructure for cost efficiency. Each client gets dedicated API keys, rate limits, and reporting.

Microservices Architecture

Each channel (SMS, WhatsApp, RCS, Voice) runs as an independent service, enabling zero-downtime deployments and per-channel scaling.

Cloud-Native Infrastructure

Deployed on scalable cloud infrastructure with auto-scaling groups, load balancers, and multi-AZ redundancy for 99.9% SLA.

Real-Time Message Queue

High-throughput message broker handles burst traffic with priority queuing, dead-letter queues, and guaranteed delivery.

Distributed Data Layer

Time-series delivery data stored in high-performance databases with hot/cold tiering for instant analytics and long-term retention.

Event-Driven Webhooks

Every delivery event, reply, opt-out, and conversion fires an instant webhook — keeping your CRM and systems always in sync.

Developer Hub

API-First.
Integrate in Minutes.

Every A2ZSMS product is accessible through clean, documented APIs. From simple REST calls to enterprise SMPP binds — your team can integrate in the language and protocol you already use.

Send SMS — REST API
POST https://api.a2zsms.in/v1/sms/send
Authorization: Bearer YOUR_API_KEY
Content-Type: application/json

{
  "to": "+919876543210",
  "sender_id": "A2ZSMS",
  "template_id": "1007XXXXXXXXXXXXX",
  "message": "Your OTP is 839201. Valid for 10 mins.",
  "type": "transactional"
}

// Response
{
  "status": "queued",
  "message_id": "msg_abc123xyz",
  "credits_used": 1
}
REST API
Clean RESTful endpoints for all channels. JSON payloads, OAuth 2.0 auth, Swagger docs included.
SMPP v3.4
Industry-standard SMPP protocol for ultra-low latency, high-volume SMS at 3,000+ TPS.
Webhooks
Real-time push events for delivery receipts, incoming messages, opt-outs, and conversions.
SDKs
Client libraries for Node.js, Python, PHP, Java, and .NET with usage examples.
Zapier / Make
No-code connectors for 5,000+ apps. Build automations without writing a single line of code.
Postman Collection
Ready-to-import API collection with environment variables for instant testing.
Security & Compliance

Enterprise-Grade Security.
Zero Compromises.

A2ZSMS is built with compliance and security at the core — not as an afterthought. Every layer of the stack is hardened.

TRAI & DLT Compliant

All SMS routes are registered on Distributed Ledger Technology (DLT) as mandated by TRAI. Sender IDs and templates are pre-approved.

AES-256 Encryption

All data in transit is encrypted via TLS 1.3. Stored data is AES-256 encrypted. API keys are hashed and never stored in plaintext.

GDPR Ready

Opt-in management, right-to-erasure workflows, data residency controls, and DPA agreements available for global customers.

Role-Based Access Control

Granular RBAC with MFA enforcement. Audit logs capture every user action with IP, timestamp, and resource trail.

Meta BSP Verified

Officially approved Meta Business Solution Provider for WhatsApp Business API access — vetted by Meta's compliance team.

SOC 2 Type II Roadmap

Infrastructure controls aligned with SOC 2 Trust Services Criteria. Audit process underway for formal certification.

3,000+
SMS per Second (TPS)
500M+
Messages Delivered
99.9%
Platform SLA Uptime
10K+
Active Business Clients
<200ms
Avg API Response Time
18+
Telecom Operator Routes
Onboarding

Go Live in 4 Steps

From sign-up to sending your first campaign — the A2ZSMS platform is designed for speed. No infrastructure to manage, no ops burden.

1
Create Account

Sign up in 2 minutes. Get instant API keys, portal access, and sandbox credits.

2
Activate Channels

Choose SMS, WhatsApp, RCS, or Voice. Register DLT sender IDs from the same dashboard.

3
Integrate or Use Portal

Call our REST API / SMPP, or use the web portal to upload contacts and craft campaigns.

4
Track & Scale

Monitor live delivery reports, tweak campaigns, and scale volume as your business grows.

Start Free — No Card Needed

Ready to Scale Your Business Communication?

Join 10,000+ businesses across India already using A2ZSMS to send millions of messages every day — reliably, compliantly, at scale.

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10,000+ Active Businesses500M+ Messages DeliveredTRAI & Meta Compliant99.9% Uptime SLA