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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.
Speak to Sales Chat with SupportTrusted Communication API Provider
See why the largest Financial and Healthcare companies prefer Esendex's communication APIs.
Products for a range of use cases
SMS API
Texting API designed to send & receive SMS & MMS globally using a short code or 10DLC number.
Learn MoreSMS Software
Easy to use SMS software that can send & receive SMS & MMS using a short code or 10DLC number.
Learn More Resell SMSVoice Broadcast
Powerful voice API that sends mass automated phone calls quickly to mobile & landline devices.
Learn MorePhone Verification
Verify mobile & landline numbers, find service providers, & define time zones to restrict calling times.
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What Does Opt Mean in The Text Messaging Industry?
Start ReadingWhy choose Esendex
Join the trusted leader in business communications.
ISO 27001
registered firm
Security is very important to us and protecting our customers’ data is paramount.
5 star reviews from
happy customers
We’re rated ‘Excellent’ for our service and support because we care about our customers.
Easy integration
with your software
With sample code, documentation and hints and tips, you can be sending via our API in no time.
Easy to use
web platform
Send and receive SMS online and transform the way your business communicates.
Real-time
communication
We commit to 90% of your messages being sent within 5 seconds & 95% within 20 seconds.
Multichannel
capabilities
Combine our Voice, SMS, and verification products to build the perfect solution for your business.
Detailed reporting
capabilities
Analyze the results you receive and discover how to get better responses and feedback.
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.

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.
Learn MoreWhat 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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