Engage Your Customers with The Confidence & Reliability Only Found in CDYNE Communication API's & Software
CDYNE offers reliable and flexible SMS APIs, voice broadcasting, SMS broadcasting, an SMS reseller program, phone number verification and address verification API's that are easy to integrate and scale for your business.
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Trusted Communication API Provider
CDYNE's Communication APIs are Trusted by Some of The Biggest Brands in The World Since 1999 - ABOUT US
You Can Support Any Channel with Our Communication APIs & Software
SMS NOTIFY! API
SMS API
Programmable SMS API
Text message API designed to send & receive SMS & MMS globally using a short code or 10DLC phone number.
Learn MoreDASH NOTIFY!
SMS Software
No Programming Needed
Easy to use texting software that can send & receive SMS & MMS using a short code or 10DLC phone number.
Learn More Reseller ProgramPHONE NOTIFY! API
Voice Broadcast
Programmable Voice API
Powerful voice broadcast service that sends mass automated phone calls quickly to mobile & landline devices.
Learn MoreVOICEMAIL DROP!
Ringless Voicemail
Voicemail Drop Software
Non-intrusive voicemail marketing software that drops your unique message into your contacts' inboxes.
Learn MorePHONE VERIFY! API
Phone Verification
Phone Verification API
Verify cellphone and landline numbers, find service providers, and define time zones to restrict calling times.
Learn MorePAV! API
Address Verification
Robust Address API
Quickly and easily verify, standardize, and correct bulk addresses in the United States and Canada.
Learn MoreEnjoy 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.

Voice API Guide
A free voice API resource to help you better understand how to use a programmable voice API within your business.
Explore Our Latest Blog Topics

What Is Mass Texting & How Does It Work?
Businesses can utilize SMS marketing in a number of ways, such as through a long...
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What Is SMS Marketing & Why Use It? A Complete Overview
SMS marketing is a term that's often thrown around...
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SMS vs. MMS (What's the Difference)
Mobile phones have become a commodity. Today, people use cellular devices...
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