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Connect with your audience in a simple and effective way through our cutting-edge SMS platform. 


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SMS API coming soon

With our SMS API, seamlessly build customer journeys by fostering interactive conversations, all within the framework of your app.

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Empower Your Applications with SMS API in Just Minutes


Enhance your sales and foster customer loyalty by leveraging impactful SMS advertising targeted at your customer base.


With IDT's reliable and scalable Notifications API, you can create highly personalized SMS notifications that cater to any use case with unmatched flexibility.


Our SMS OTP API provides the swiftest, highly secure, and cost-effective solution for user verification and authentication.


Quickly send SMS polls, surveys and request customer feedback with 2 way messaging.

Appointment Reminders

Send timely reminders to customers about upcoming appointments, allowing them to confirm or reschedule through their preferred communication channels.

Why Connect to IDT Express's SMS APIs?

Global SMS coverage
Swiftly integrate IDT's Platform into your current systems or applications
Carrier-grade platform
User-friendly wizard-driven code generation process that is fast and effortless to utilize
Enable 2-way communication with your customers
Comprehensive documentation to facilitate quick deployment
24/7 support for you and your team

Customize and scale effortlessly

Capture global interest using impactful bulk SMS messages powered by a carrier-grade platform and an extensive network of 550+ direct carrier connections

DID Numbers

Send messages to 70+ countries globally using our local DID numbers. Also, receive messages in 14 different countries on your SMS-enabled phone numbers.

Short Codes

Personalize your brand by customizing the sender ID of your outbound messages with alphanumeric characters.

Smart Routing

Our smart routing ensures your messages follow the quickest and most efficient path and ensure timely delivery to your customers.


Easily schedule SMS, MMS, or WhatsApp messages to be sent at a specific date and time in the future with a simple API call.

Opt-out Management

Seamlessly handle SMS opt-out requests from customers and automatically register them in your system to maintain compliance and provide exceptional customer service.

Security First, Always

Recognizing the significance of security for our customers, we assume the responsibility of guaranteeing absolute security, privacy, and reliability of IDT Express's Communication APIs platform, granting our customers peace of mind.

Not looking for SMS APIs? Signup for our SMS portal

Powering enterprises to craft unbeatable SMS experiences for their customers globally. Drive engagement and sales in just a few clicks and create your highest revenue channel with personalized campaigns that convert.

Frequently Asked Questions

An SMS API, which stands for Short Message Service Application Programming Interface, is a set of protocols and tools that enables software applications to send and receive text messages (SMS) programmatically. It allows developers to integrate SMS functionality into their own applications, websites, or systems, facilitating the automation of SMS communication.

To get access to IDT’s SMS API you have to first create an account. It’ll take less than a minute to create one. Then you’ll have access to the API keys that you can use to integrate the API. Make sure you have also added all the contact details under your account.

Certainly! You have the capability to send bulk text messages internationally to multiple countries at the same time. However, it’s important to ensure that you input the correct country codes when uploading international numbers to ensure proper routing.

Please keep in mind that the costs of messages sent internationally may vary, as they are charged based on the network and destination.

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