SMS Gateway
Discover how our SMS gateway can help you to rapidly target your audience with engaging text messages.
Connect via API or our online web platform.

Trusted by 46,000 customers to deliver world class mobile messaging services
Reach your audience with our online SMS gateway
We’re all familiar with sending a text message to a friend – an SMS Gateway allows businesses to do something very similar, but at scale.
Whether you’re sending a flash promotion, a restaurant booking confirmation, or an appointment reminder, timing is everything. Our powerful SMS gateway can help you to reach your audience in the most cost and time-efficient way possible.
With an SMS gateway you can send messages to mobile networks by translating the message, so people receive it no matter what network they’re on.
Rather than businesses having to connect with each mobile network or operator, the Esendex SMS gateway allows you to connect once and then we take care of the rest – ensuring your messages reach the right person, with the right device, in the right country almost instantly or at a time you schedule.
You can access our SMS gateway via API, which means you can integrate straight from your CRM or software, or use our web platform to import phone numbers and compose your messages via an easy-to-use interface.

Start your free trial
Discover the full power of our SMS gateway with 25 free messages over 7 days, no credit card required.
Powerful SMS gateway features
Send mass SMS quickly
Ideal for time-critical messages and notifications, we can help you send SMS quickly en masse.
2 Way SMS
Start conversations and engage customers by sending and receiving SMS at scale.
SMS Appointment Reminders
Reduce missed appointments by sending automated SMS reminders to your customers.
Schedule SMS
Schedule your SMS campaigns at the right time to drive conversions.
Two-Factor Authentication
Create secure logins by sending text messages to users of your application, website, or software.
Autoresponders
Automate your entire SMS campaign and the response customers receive after replying.
Opt Out Handling
Recipients can easily remove themselves from your SMS campaign with a click of a button.
Detailed Reports
Get detailed reports on how many text messages are sent, plus other valuable insights.
How does the Esendex SMS gateway work?
- Send messages via our API or online platform.
- The SMS gateway determines the fastest and most direct route to send the message across local or international networks.
- The gateway can also support multiple content formats – for example SMS or MMS or even convert formats for example email to SMS.
- It also manages messages received for replies and reporting.
- The Esendex SMS gateway only sends via direct routes, never grey routes and can handle millions of messages at speed. It’s also built with security at the forefront so you can be confident that data is protected.
How to access the Esendex SMS gateway
Our goal is to make using our SMS gateway as straightforward as possible. The intuitive Esendex platform allows you to build, send and receive messages as well as manage your contacts, and report on send campaigns. Take a free trial to see how easy it is to get started.
You can also integrate our messaging API which allows you to send across SMS, RCS & WhatsApp. With swagger formatted documentation and support available whenever you need it, you’ll quickly be able to:
- Manage conversations
- Check your message status
- Enrich customer data
- Monitor your credit balance
Why choose Esendex?
Our SMS gateway is trusted by organisations across a range of sectors – including retail, financial services and healthcare. A powerful engine room in your business, it can drive your communications strategy, and is easy to implement and operate.
World class support
Most gateway SMS services don’t have active online support channels customers can speak to when they need it the most, and we understand. That’s why we have 24/7, around the clock emergency support for our SMS gateway API service.
- Fast Response Times
- Fast Troubleshooting
- Chat, Email, & Phone Support
Global texting SMS API
Our bulk SMS gateway helps you leverage your business communication globally without any interruptions.
Distance is no longer a barrier because we can offer connectivity across the globe.
- Tier 1 SMS network
- 99.9% guaranteed uptime
End-to-end data and security protection
We’re ISO 270001 accredited and use the most secure protocols to secure our communications (TLS 1.2).
We do not use grey routes so you can rely on the quality of our message sends, and our APIs are served using HTTPS to ensure your data remain private.
FAQs
What is an SMS gateway?
An SMS gateway is a service that allows businesses to send and receive text messages, including SMS (short messaging service), and MMS (multimedia messaging service) in bulk. Messages are converted to the format used by network operators in different countries, and you can also personalise and schedule messages to engage audiences, as well as monitor performance.
What is an SMS gateway provider?
SMS gateway providers allow businesses to send and receive text messages. This can be done through a web-based portal or through an application.
What is an SMS gateway API?
An SMS gateway API is a web service that allows you to send and receive text messages. Businesses can use it to send messages to a mobile phone or an email address. The SMS gateway API provides a way to send messages from your application or website.
What is SMS gateway software?
SMS gateway software is the platform that provides the interface between an organisation’s messaging system and the public telephone network. It’s used to automate sending and receiving text messages for SMS marketing, automated notifications, and more.
How to integrate an SMS gateway into a website?
Businesses can integrate an SMS gateway into a website in a few different ways. One option is to use an SMS gateway provider’s web-based SMS interface. This is usually the easiest way to get started because the provider usually offers detailed instructions on how to set it up. You can also use an SMS gateway API – which is more complicated to set up but can give you more flexibility in how you use the SMS gateway.
How to send an SMS using an SMS gateway?
You can send text messages from an SMS gateway by connecting to an SMS gateway API through your website, software, application, or CRM integration.