SMS API
Send and receive mass text messages globally to customers with our programmable SMS API service. Our SMS API can do it if you can think of it!
See why the largest Financial and Healthcare companies prefer CDYNE's SMS API.
Trusted SMS API Provider
CDYNE's API for Bulk SMS is Trusted by Some of The Biggest Brands in The World - ABOUT US
Powerful SMS Gateway Features
When you combine our SMS gateway with these awesome features, anything is possible!
Our SMS API gateway delivers the tools you need to boost company sales, revenue, customer engagement, and stay connected with your customers.
MMS API Services
Send cool pictures, emojis, GIFs, links to your website, and even audio messages to your customers.
SMS Long Codes
Send text messages from a local phone number that your recipients will know and trust.
10DLC Capable
Get a new SMS long code solution for all of your United States A2P business messaging use cases.
Autoresponder
Automate your entire text message campaign and the response customers receive after replying.
Two-Way Texting
Engage with customers by sending and receiving bulk sms and create powerful conversations.
Schedule SMS
Schedule your company's texting campaign to be sent out at optimal times for higher conversions.
Two-Factor Authentication
Send text messages to users of your application, website, or software to ensure secure logins.
Appointment Reminders
Reduce missed appointments by sending automated SMS reminders to your customers.
Opt-Out Handling
Recipients can easily remove themselves from your text message campaign with a click of a button.
Number Pooling
Use multiple phone numbers to deliver even more text messages to your entire contact list.
Detailed Reports
Get detailed reports on how many text messages are getting sent, plus more valuable data.
Why Choose CDYNE’s SMS API?
We strive to be the best SMS service provider in the industry. Our trusted text SMS API provides quality performance to drive your communication strategy.
1. World Class Support
Most SMS API services don't have active online support channels customers can speak to when they need it the most, and we understand. That's why we have 24/7, around the clock emergency support for our text API service.
- Fast Response Times
- Fast Troubleshooting
- Chat, Email, & Phone Support


2. Global Texting SMS API
Our SMS texting API enables you to leverage your business communication globally without any interruptions. Don't worry about the distance! Get connectivity in more than 190 countries.
- Tier 1 SMS Network
- 99.9% Guaranteed Uptime
3. Government Level Security
Our SMS API is 256 Bit Encrypted (typically only reserved for governments and militaries), SOC2 Type 2 Certified, HITRUST Certified. Hardware-based SMS servers are strategically located throughout the US-owned and operated by CDYNE.
- 256 Bit Encrypted
- HITRUST Certified
- SOC2 Certified

What is an SMS API ?
An SMS API is an acronym for a short message service application programming interface. The SMS message API allows your business to use SMS messaging within your software platforms, website, or CRM easily and quickly. You can program our SMS service API to do almost anything you can imagine through text!


Simple SMS API Documentation
We know that implementing an SMS bulk API into your business takes time. That's why we made our documentation easy to understand and implement into all of your projects!
You'll have no problem connecting with the SMS gateway using any programming language capable of REST or SOAP calls, as it was created by developers who wanted nothing more than making sure you could get up and running quickly without having trouble understanding what is happening or how things work underneath the hood.
Build Your Apps Faster
- Uncomplicated API References
- Code in Multiple Programming Languages
- Technical Customer Support
- Helpful FAQ Section for Dev
The CDYNE Difference
Since the early 2000s, CDYNE's been one of the industry's most trusted SMS API providers. The truth is we do things differently. Our vision is to shape your connections to the world through reliable, usable, and adaptable Communication and Data APIs.
24/7 Support Lowest Pricing Multiple Communication ServicesPopular SMS API Use Cases
With our easy-to use SMS service API, you can programmatically add SMS campaigns or set up autoresponders with just a few lines of code.
Example: Want to give the love of your life a special Valentine’s Day gift? For 24 hours, our VIP text subscribers can get 15% off all flowers. Your significant other awaits you: https://yourwebsite.com
Example: Hi Jerome, you recently bought your new cellphone, can you tell us how often you’re using it? Your feedback is very important to us. Cheers, ABC Mobile.
Example: Thanks for entering for a chance to win a FREE 60 minute massage!
Example: Please take shelter. Lock your doors and windows. A category 3 hurricane is headed towards your location in Chesapeake, VA around 1:00pm EST. Await further info. Check https://123weather.com for more info.
Example: Hi Matthew. Your dental appointment at 123 Teeth is on 2/18/2022 at 3:00pm. Reply C to confirm or stop to end all text messages.
Learn How Key Industries Are Using Text Message APIs
Grow your business easily and fast with our SMS API services. It works for any industry/niche!
More IndustriesCDYNE's SMS API Stats on Sent Text Messages
15+
Years of Experience
2,000+
Satisfied Customers
99.99%
Average SMS Uptime
94%
Would Recommend Us to Others
10's of Billions
Messages Sent
3
Secure Data Centers
SMS API FAQ
Get all of your text message API questions answered here.
Explore Our SMS API Blog Topics
The CDYNE blog has the latest content for all of your SMS API needs.

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