Australia’s Most Reliable & Scalable SMS Gateway
Turbocharge your business communication with lightning-fast SMS and MMS delivery. Designed for developers, startups, and enterprises, Smart SMS API offers seamless integration, tier-one reliability, and unbeatable rates. Stop settling for slow and unreliable – switch to the gateway built for scale, speed, and success.
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Enterprise SMS Gateway Made for Developers
Smart SMS API bridges the gap between developers and telecommunications providers. With scalable APIs, direct telco connections, and enterprise-grade reliability, we make sending millions of messages effortless. Streamline integration, cut through the noise, and achieve unmatched results with technology designed for coders, by coders.
- Node.JS
- Python
- C#
- Java
- PHP
- Ruby
- Custom

Node.JS
High-Performance Node.js Integration
SMARTSMSAPI offers a native Node.js package that perfectly complements your asynchronous workflows. Our Promise-based API seamlessly integrates with Express, NestJS, or any Node.js environment, allowing you to send messages with minimal overhead. The lightweight npm package is built with performance in mind, supporting both callback and async/await patterns to match your coding style. From startups to enterprise applications, SMARTSMSAPI scales effortlessly with your Node.js services, handling millions of messages while maintaining the non-blocking execution model that makes Node.js powerful. Deploy with confidence knowing our comprehensive error handling and detailed logging will keep your messaging pipeline running smoothly.
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Python
Ready for Python, Right Out of the Box
SMARTSMSAPI integrates seamlessly with Python, making SMS integration simple and efficient. Our Python library provides a clean, Pythonic interface that fits naturally into your existing codebase. Perfect for web applications, data science projects, or automation scripts, our API handles message delivery at scale while you focus on your core application logic. From Django to Flask, or standalone scripts, SMARTSMSAPI gives you enterprise-grade messaging with just a few lines of code.
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C#
.NET Developer Friendly
SMARTSMSAPI delivers a robust C# integration that feels right at home in your .NET environment. Our well-documented C# library follows standard conventions and patterns, making implementation straightforward for ASP.NET, WPF, or any other .NET application. Built with performance in mind, our API handles high-volume messaging while maintaining the type safety and reliability you expect. From enterprise applications to microservices, SMARTSMSAPI scales with your needs with minimal overhead.
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Java
Enterprise-Ready Java Integration
SMARTSMSAPI provides a Java SDK that integrates perfectly with your enterprise applications. Whether you're running Spring Boot, Jakarta EE, or standalone applications, our Java library delivers consistent performance with minimal configuration. The API respects Java conventions with proper exception handling and comprehensive documentation. Designed for high-throughput environments, SMARTSMSAPI helps you deliver millions of messages reliably while maintaining the stability your Java applications demand.
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PHP
Powerful PHP Implementation
SMARTSMSAPI offers a PHP library that works flawlessly with all modern PHP frameworks. From Laravel to Symfony or vanilla PHP, our integration is designed to be straightforward and powerful. The composer-ready package follows PSR standards and provides a fluent interface that makes sending messages intuitive. With built-in error handling and comprehensive logging, SMARTSMSAPI gives PHP developers the tools they need to implement enterprise-grade messaging without the complexity.
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Ruby
Ruby Integration Made Simple
SMARTSMSAPI's Ruby gem provides a clean, idiomatic implementation that feels natural to Ruby developers. Whether you're using Rails, Sinatra, or plain Ruby, our API delivers the simplicity and elegance that Ruby programmers expect. The lightweight gem handles all the complexities of telecom integration while exposing a simple, intuitive interface. From startups to established businesses, SMARTSMSAPI scales with your Ruby applications without compromising on performance or reliability.
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Custom Projects
Bespoke Integration Solutions
SMARTSMSAPI offers custom integration services for unique project requirements. Our team of developers will work directly with your technical staff to create tailor-made solutions that address your specific messaging needs. Whether you're using a less common programming language, need specialized message handling, or have complex integration requirements, we can help. Our experience bridging telecommunications with diverse technical environments ensures your custom project will deliver the enterprise reliability and performance that SMARTSMSAPI is known for.
mode detailsSimple SMS and MMS Gateway Integration
Whether you’re a seasoned developer or a startup exploring SMS API solutions, Smart SMS API makes integration effortless. Our robust REST APIs and SMPP connections ensure reliability and scalability, powering everything from transactional SMS to promotional MMS campaigns. Explore quick-start guides, code snippets, SDKs, and more in our comprehensive resource library to kickstart your build.

Competitive SMS Gateway Pricing Without the Bloat
Enterprise-grade SMS and MMS gateway services at prices designed to scale with your business. With flexible subscription options and low per-message rates, you’ll save more as you grow.
Communicate reliability
Experience a 99.98% uptime SLA made possible with automated failover and zero maintenance windows.
Operate at scale
Our scalable SMS gateway service handles millions of messages.
Reliable SMS API and MMS gateway solutions built for developers and businesses.
Direct connect
Direct connections with Australia’s top telcos for fast and secure delivery, which exceeds Australian privacy policy regulations.
No Shenanigans
Get to market faster with transparent pricing with no hidden fees or unnecessary add-ons. FREE support, and the freedom to scale up or down without contracts.
SMS - MMS pricing table
Core features | |||||||
---|---|---|---|---|---|---|---|
Send SMS | Up to 1,000/month | Up to 10,000/month | Up to 50,000/month | Custom quota based on your needs | |||
Receive SMS | 1 Virtual Number | Up to 3 Virtual Numbers | Up to 10 Virtual Numbers | Custom configurations available | |||
Delivery Reports | Real-time Status Tracking | Real-time Status Tracking | Advanced Insights with Export Options | Comprehensive analytics & SLA tracking | |||
API Access | Basic API Access | Advanced API Access | Advanced API + Rate Limiting Configurations | Fully Customizable API Integration | |||
Campaign Manager | - | Campaign Scheduling and Management | A/B Testing and Segmentation Tools | Fully Automated Campaign Solutions | |||
Personalization | - | Basic Template Support | Advanced Dynamic Fields | Custom Personalization via AI Integration | |||
Analytics Dashboard | - | Basic Reporting | Advanced Analytics with Export Options | Custom KPIs and Integrations | |||
Delivery Insights | Basic Insights | Detailed Insights | Predictive Analytics | Bespoke Reporting & AI Insights | |||
Support Availability | Email support | Email + Priority Support | Dedicated Account Manager | 24/7 Enterprise Support | |||
Onboarding Help | Self-serve Knowledge Base | Basic Setup Assistance | Full Onboarding Support | Custom Onboarding & Training Programs | |||
Sender ID | Shared ID | Customizable IDs | Multiple Sender IDs | Geo-specific Sender ID Options | |||
Integrations | Basic CRM Integrations | Advanced CRM and Zapier | Full CRM, ERP, and Workflow Integrations | Custom Integrations with SLA guarantees |
What our customers say about us
Cellcast has completely transformed the way we stay connected with our congregation. Whether it’s sending service reminders, sharing prayer requests, or collecting...
Monica Limanto
CEO of Petsy
We use Cellcast for everything from increasing conversions to awarness on campaigns. Have used other platforms, none works as good as Cellcast.
Casey Lyons
CEO & Co-Founder LIVIN
Using Cellcast has completely transformed how we communicate with our congregation. From service reminders to prayer requests, texting has made everything...
Jason Mannering
Gateway life Church
The #1 Rated SMS & MMS marketing platform in Australia
Rated 4.9/5 by Australian business
Cellcast stands as Australia’s highest-rated business messaging platform, trusted by thousands of companies nationwide for their critical customer communications. Our market-leading position is built on enterprise-grade carrier connections, exceptional delivery rates, and award-winning customer support.

Processing Millions of SMS Messages Daily
4.9 Star
Average customer satisfaction score
98%
Customer retention rate
Serving
Star-ups to ASX-listed
Companies
Industry-best uptime of
99.98%
Build With Australia’s Biggest Business Messaging Networks

Built for scale and efficiency, Smart SMS API handles high-volume SMS and MMS messaging for businesses of all sizes. We have direct partnerships with every major carrier. As a Tier 1 partner of Telstra, Vodafone TPG, and Optus, we provide businesses with premium messaging routes that ensure optimal delivery rates and enterprise-grade reliability.
Our data
speaks for itself.
90x
ROI by Vibes SMS customers
<1%
Campaign
opt-out rate
25%
Lower SMS subscriber churn
97%
SMS audience retention
9x
SMS broadcast click-through rate
Frequently asked questions
How can I integrate the Smart SMS API into my platform?
Smart SMS API offers developer-friendly REST APIs and SMPP connections for seamless integration with your software stack. Our comprehensive documentation and easy-to-use platform makes setup quick and easy.
How does the pricing work?
As a wholesale provider of SMS and MMS services, we offer prepaid credit bundles that give you the most competitive unit price available in the market. This means that the more credits you buy, the lower the cost per unit.
How much does it cost to use Smart SMS API?
Our pricing is transparent and competitive, with no hidden fees. We offer flexible subscription plans and low per-message rates for SMS and MMS. Visit our pricing page for details. The higher your plan, the lower your SMS and MMS rate is.
How many credits do I need to send a message?
Each credit represents one message that you can send, which means that a bundle of 10 credits will allow you to send 10 messages. For SMS messages, you are limited to 160 characters per message, while for MMS messages, you can have up to 1,000 characters in the message body, plus an additional 30 characters for the subject line.
Will my credits expire?
The prepaid credits that you purchase from us have no expiration date, and there are no restrictions on how frequently or infrequently you can use them. You can use them whenever you need them, without any time constraints.
Is my data safe, will it be used for any other purpose?
Cellcast ensures that your data is securely stored on its AWS platform located in Sydney, which is accessible only to you. Our systems are secured to the gold standard, making them the benchmark for all of our happy customers. To learn more about our privacy policy, you can visit our website.
Can I send messages that display a business name or numbers?
Yes, you can. Using your business name or your own mobile number can be a great way to strengthen your brand identity. When using this option, Cellcast charges 1.3 credits per message.
Why is Smart SMS API so popular?
Our pricing is unbeatable, and if you happen to find an SMS or MMS price that is comparable, just inform us and we will beat it.
Are there any membership fee's?
Absolutely not! There are no upfront or ongoing fees to use the Cellcast platform for SMS or MMS messaging. You only pay for the credits you purchase to send messages, and there are no hidden charges or fees.
Can I purchase my own Virtual Number?
Yes, you can. You have the option to purchase virtual mobile numbers (VN) for an annual fee of $168 or a monthly fee of $18. Additionally, you can also purchase a short code (SC). Please contact our support team for further assistance with connecting your purchased VN or SC.
What is an SMS gateway, and how does it work?
An SMS gateway is a platform that allows businesses to send and receive SMS messages through APIs or web interfaces. Smart SMS API connects directly with Australian telcos like Telstra, Optus, and Vodafone, ensuring reliable, high-speed message delivery.
What is the difference between SMS and MMS?
SMS (Short Message Service) is for text-based messages, while MMS (Multimedia Messaging Service) allows you to send media like images, videos, and audio. Smart SMS API supports both for comprehensive messaging campaigns.
What industries benefit from using an SMS gateway?
Industries like retail, healthcare, education, real estate, e-commerce, and logistics use SMS and MMS gateways for customer notifications, marketing campaigns, appointment reminders, and transactional alerts.
Can I send bulk SMS and MMS messages?
Yes, Smart SMS API supports bulk SMS and MMS messaging for campaigns, updates, and alerts. Our platform is built for scalability, allowing you to send millions of messages with ease.
What are the benefits of using a direct telco SMS gateway?
With Smart SMS API, you get faster delivery, better reliability, and competitive pricing by connecting directly to Telstra, Optus, and Vodafone. It is extremely challenging with many requirements you must meet to be able to obtain these routes and direct partnerships with each Telco provider.
What is an SMS API, and why do I need it?
An SMS API allows you to automate and scale SMS sending from your application. It’s ideal for notifications, marketing, and transactional messages. Smart SMS API simplifies this with developer-friendly tools.
Is Smart SMS API secure for enterprise messaging?
Yes, Smart SMS API is built with enterprise-grade security, ensuring your data and messages remain safe and compliant with Australian regulations.
Can I schedule SMS or MMS messages?
Absolutely. Smart SMS API allows you to schedule messages in advance, perfect for marketing campaigns, appointment reminders, and time-sensitive alerts.
What is the best SMS gateway in Australia?
Smart SMS API is one of Australia’s most reliable SMS gateways, offering direct telco connections, high scalability, and developer-friendly APIs for seamless integration.
How do I choose the right SMS gateway service?
Look for reliability, scalability, direct telco connections, cost-effectiveness, and ease of integration. Smart SMS API checks all these boxes, making it the perfect solution for businesses.
What are the top benefits of using an SMS gateway?
Top benefits include improved customer communication, automated notifications, scalable marketing campaigns, and cost-effective messaging. Smart SMS API delivers these and more.
How does an MMS gateway improve engagement?
An MMS gateway lets you send rich media like images and videos, which drive higher engagement rates compared to plain text SMS. Smart SMS API makes it easy to send multimedia messages at scale.
Is there a free trial for Smart SMS API?
Yes, we offer a free trial so you can explore our SMS and MMS gateway services before committing to a plan.