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Esendex offers reliable & flexible SMS APIs, Voice API, SMS software, an SMS Reseller Program, and Phone Number Verification API's that are easy to integrate & scale for your business.

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Trusted Communication API Provider

See why the largest Financial and Healthcare companies prefer Esendex's communication APIs.

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Products for a range of use cases

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PROGRAMMABLE SMS API

SMS API

Texting API designed to send & receive SMS & MMS globally using a short code or 10DLC number.

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NO CODING REQUIRED

SMS Software

Easy to use SMS software that can send & receive SMS & MMS using a short code or 10DLC number.

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PROGRAMMABLE VOICE API

Voice Broadcast

Powerful voice API that sends mass automated phone calls quickly to mobile & landline devices.

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PHONE VERIFICATION API

Phone Verification

Verify mobile & landline numbers, find service providers, & define time zones to restrict calling times.

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TRENDING TOPICS FOR SMS

What Does Opt Mean in The Text Messaging Industry?

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Why choose Esendex

Join the trusted leader in business communications.

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ISO 27001
registered firm

Security is very important to us and protecting our customers’ data is paramount.

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5 star reviews from
happy customers

We’re rated ‘Excellent’ for our service and support because we care about our customers.

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Easy integration
with your software

With sample code, documentation and hints and tips, you can be sending via our API in no time.

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Easy to use
web platform

Send and receive SMS online and transform the way your business communicates.

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Real-time
communication

We commit to 90% of your messages being sent within 5 seconds & 95% within 20 seconds.

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Multichannel
capabilities

Combine our Voice, SMS, and verification products to build the perfect solution for your business.

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Detailed reporting
capabilities

Analyze the results you receive and discover how to get better responses and feedback.

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Unlimited technical
support

Customer support is available 24 hours a day, 7 days a week, and we don't charge you a penny.

Enjoy Our New API Comprehensive Guides

Our beginner's guides to using a programmable SMS & voice API to help you succeed in building your companies website, application, CRM, and more.

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SMS API Guide

A free SMS API resource to help you better understand how to use a programmable SMS API within your business.

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Voice API Guide

A free voice API resource to help you better understand how to use a programmable voice API within your business.

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What Our Customers Have to Say

We’ve been rated 5 out 5 stars on Capterra, GetApp, Google and Facebook – based on 40+ reviews.

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SMS BROADCASTING

What Is Mass Texting & How Does It Work?

Businesses can utilize SMS marketing in a number of ways, such as through a long code or short code. Short codes...

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SMS BROADCASTING

What Is SMS Marketing & Why Use It?

SMS marketing is a term that's often thrown around when companies are talking about their communication...

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SMS BROADCASTING

SMS vs. MMS (What's the Difference)

Mobile phones have become a commodity. Today, people use cellular devices to connect with the world...

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