SMS API Provider

Supercharge your app with our SMS API to create incredible customer experiences. Engage customers in interactive conversations and effortlessly build customer journeys. Take your app to the next level now.

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Get a free $25bonus credit!

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Get a free $25bonus credit!

Easily cancel whenever you want

Get a free $25bonus credit!

SMS API Provider

Let us handle the hard work for you


Countries covered

Uptime guaranteed

Supercharge Your Applications with
SMS API in Minutes


Supercharge your sales and drive customer loyalty with targeted and powerful SMS advertising.


Level Up Your Notifications with IDT’s API
Create personalized SMS notifications that cater to any use case with unmatched flexibility using IDT’s reliable and scalable Notifications API.


Introducing our SMS OTP API – the fastest, most secure, and affordable solution for user verification and authentication.


Instantly engage with your audience through SMS polls, surveys, and customer feedback. Experience seamless two-way messaging.

Appointment Reminders

Never miss an appointment again with our timely reminders. We’ll keep you informed and give you the flexibility to confirm or reschedule through your preferred communication channels.

Experience seamless integration and maximum efficiency with IDT Express's SMS APIs!

Unleash your messages worldwide with our global SMS coverage.

Effortlessly integrate IDT's Platform into your existing systems or apps.

High-performance platform for carriers

Easy-to-use code generation process with a user-friendly wizard interface for quick and effortless programming.

Enhance customer engagement with seamless communication

Comprehensive documentation to facilitate quick deployment

Always there for you: 24/7 support for you and your team

Effortlessly customize and scale your experience

Ignite worldwide interest with powerful bulk SMS messages facilitated by a top-tier platform and a vast  network of over 550 direct carrier connections.

DID Numbers

Expand your global reach by sending messages to over 70 countries with our local DID numbers. Plus, conveniently receive messages in 14 different countries on your SMS-enabled phone numbers.

Short Codes

Make your brand unique by customizing the sender ID of your messages with personalized alphanumeric characters.

Smart Routing​

Get your messages to your customers quickly and efficiently with our smart routing technology.


Schedule SMS, MMS, or WhatsApp messages effortlessly by making a single API call. Specify the exact date and time for sending messages in advance.

Opt-out Management

Schedule SMS, MMS, or WhatsApp messages effortlessly by making a single API call. Specify the exact date and time for sending messages in advance.

Put Security First, Always

We take security seriously. At IDT Express, we are committed to providing our customers with a platform that guarantees absolute security, privacy, and reliability for our Communication APIs. You can trust us to keep your information safe and give you peace of mind.

Looking for something other than SMS APIs? Join our SMS portal!

Supercharge your enterprise with unbeatable SMS experiences worldwide. Boost engagement and skyrocket sales with just a few clicks. Create personalized campaigns that convert and unlock your highest revenue channel.

SMS API Provider



What is an SMS API, and how does it work?

An SMS API (Application Programming Interface) is a set of rules and protocols that allows software applications to send and receive SMS messages. It works by enabling your application to interact with a messaging platform or gateway to send text messages programmatically.

What are the common use cases for SMS API integration?

SMS API integration is used in various industries, including e-commerce for order updates and promotions, education for sending exam notifications, and event management for attendee verification. It can be applied wherever real-time communication via text messages is needed.

How can I ensure the security of my SMS API integration?

To ensure security, choose an SMS API provider that offers robust security features such as encryption and authentication. Additionally, follow best practices in data handling and storage to protect sensitive information.

What factors affect SMS API pricing?

SMS API pricing typically depends on the target country, the type of message (e.g., standard SMS, multimedia message), and the volume of messages sent. Prices may also vary based on the provider’s pricing structure.

Can I use SMS API for international messaging?

Yes, SMS APIs can be used for international messaging. However, the cost and delivery time may vary depending on the destination country and the SMS provider’s coverage.

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