Best Text Message API for Reliability & Delivery
Integrate Notifyre’s text messaging API into your business software to send, receive, and manage SMS and MMS messages.
One-Time Fax
Excellent 
4.7/5
4.7/5 Customer Service Rating (1187 Reviews)
TRUSTED. SCALABLE. COMPLIANT
Secure & reliable SMS API service
Seamlessly add SMS or MMS messaging to your existing systems and apps using the Notifyre SMS API.
SMS REST API
Get started quickly with Notifyre’s fully-documented REST API with sample code in .NET, Node.JS, PHP and cUrl. Detailed endpoint descriptions with request/response examples.
Secure SMS service
Notifyre's online SMS service offers a secure, encrypted, compliant SMS API with robust authentication. Our team supports vendor risk assessments and can provide security documentation.
SMS webhook
Notifyre’s API supports webhooks to enable real-time, two-way communication between your systems and ours. HMAC signatures and timestamp validation for authenticity.
Create an API token and send your first SMS with our .NET or Node.js quickstarts:
What you can do with the SMS messaging API
With Notifyre's comprehensive SMS API solution, access the following API calls:
Send & Schedule: Submit messages with metadata, campaign names, and callbacks.
Track Delivery: Query sent messages and individual recipients by ID.
Receive & Reply: List inbound SMS/MMS replies or fetch a specific reply.
Manage Numbers: View available SMS numbers and sender IDs.
Manage Contacts & Groups: Create, update, and query contacts and groups, bulk import recipients, and manage memberships.
Talk to real developers, not bots!
At Notifyre, we’re developers too. Our local support team is here to help you every step of the way: onboarding, setup, troubleshooting. Reach out anytime via live chat, email, or a quick call today.
Get started with our SMS API GitHub repositories
Trusted by DevOps teams across the United States
Rated 4.7/5 based on 1187 reviews
5.0 
Amazing and Easy to Use
Love this SMS service. It's cheap and easy to use, will definitely be moving over to Notifyre full time.
Declan M
Verified User
05 May 2025
Trustpilot
5.0
Top-Notch Service
Notifyre is packed with features, yet it is incredibly user-friendly, making it easy for us to use every day. The customer service is top notch, and the platform is perfect for any business needing to send SMS or faxes. With flexible pricing options through affordable plans or pay-as-you-go, it’s both simple and cost-effective. Huge thanks so Joe and the team!
Post & Print Supply Co Pty Ltd
Verified User
24 March 2025
Google
5.0
Unbeatable Customer Service
Overall I am very pleased with the customer support, the intuitiveness of the system, and the speed at which the messages go out. I plan to work with Notifyre for a very long time.
Neil P
Creative Director
04 February 2025
SourceForge
5.0
User-friendly and Efficient
My overall experience with the SMS service has been largely positive. The user-friendly interface and efficient functionality make it easy to navigate and utilise. The quality of the service stands out, particularly given its competitive pricing, which is significantly more affordable than other brands. I would highly recommend it to anyone in need of reliable SMS communication.
Cristina L
CEO
21 October 2024
SourceForge
5.0
Great Onboarding and Kickoff
Happy with my experience so far. I really enjoyed working with Notifyre so far. The experience has been stress-free and the team are very helpful and responsive. Easy to setup, support are very helpful and responsive. The platform is intuitive, user-friendly and easy to manage.
Jayme D
Marketing Director
10 October 2024
SourceForge
5.0
No Hidden Fees
Finally, something without hidden fees. Easy to navigate and start sending messages. Customer service has been great. I like that it's prepaid and easy to use. So far I have found everything very good.
Mary
Finance
02 October 2024
Capterra
5.0
Affordable and Easy
Priced well for small business. Allows multiple users. Good support.
Sarah
Professional Training & Coaching
08 August 2024
Capterra
5.0
Service Has Been Excellent
I wanted to share my positive experience with Notifyre. The service has been excellent. It's user-friendly, I appreciate the no lock-in contracts, and no hidden fees. I'm also impressed with the follow-up and assistance I've received from Joe.
Karl F
Verified User
08 March 2025
Google
5.0
Highly Recommended
Everything is working and Joseph kept checking in to see how things were going. They are a very personal company and it feels like we have met face to face even though we have not. I highly recommend them to any one needing a SMS solution.
Andrew D
SMS User
20 August 2024
Google
5.0
Best in the Market
Not all have email but most have a mobile phone with an SMS reminder being the preferred option because snail mail just does not work. Notifyre makes SMS so simple and lightning fast and a great value for money offering.
Brent C
Non-profit Organisation
9 May 2024
Trustpilot
5.0
Amazing and Easy to Use
Love this SMS service. It's cheap and easy to use, will definitely be moving over to Notifyre full time.
Declan M
Verified User
05 May 2025
Trustpilot
5.0
Top-Notch Service
Notifyre is packed with features, yet it is incredibly user-friendly, making it easy for us to use every day. The customer service is top notch, and the platform is perfect for any business needing to send SMS or faxes. With flexible pricing options through affordable plans or pay-as-you-go, it’s both simple and cost-effective. Huge thanks so Joe and the team!
Post & Print Supply Co Pty Ltd
Verified User
24 March 2025
Google
5.0
Unbeatable Customer Service
Overall I am very pleased with the customer support, the intuitiveness of the system, and the speed at which the messages go out. I plan to work with Notifyre for a very long time.
Neil P
Creative Director
04 February 2025
SourceForge
5.0
User-friendly and Efficient
My overall experience with the SMS service has been largely positive. The user-friendly interface and efficient functionality make it easy to navigate and utilise. The quality of the service stands out, particularly given its competitive pricing, which is significantly more affordable than other brands. I would highly recommend it to anyone in need of reliable SMS communication.
Cristina L
CEO
21 October 2024
SourceForge
5.0
Great Onboarding and Kickoff
Happy with my experience so far. I really enjoyed working with Notifyre so far. The experience has been stress-free and the team are very helpful and responsive. Easy to setup, support are very helpful and responsive. The platform is intuitive, user-friendly and easy to manage.
Jayme D
Marketing Director
10 October 2024
SourceForge
5.0
No Hidden Fees
Finally, something without hidden fees. Easy to navigate and start sending messages. Customer service has been great. I like that it's prepaid and easy to use. So far I have found everything very good.
Mary
Finance
02 October 2024
Capterra
5.0
Affordable and Easy
Priced well for small business. Allows multiple users. Good support.
Sarah
Professional Training & Coaching
08 August 2024
Capterra
5.0
Service Has Been Excellent
I wanted to share my positive experience with Notifyre. The service has been excellent. It's user-friendly, I appreciate the no lock-in contracts, and no hidden fees. I'm also impressed with the follow-up and assistance I've received from Joe.
Karl F
Verified User
08 March 2025
Google
5.0
Highly Recommended
Everything is working and Joseph kept checking in to see how things were going. They are a very personal company and it feels like we have met face to face even though we have not. I highly recommend them to any one needing a SMS solution.
Andrew D
SMS User
20 August 2024
Google
5.0
Best in the Market
Not all have email but most have a mobile phone with an SMS reminder being the preferred option because snail mail just does not work. Notifyre makes SMS so simple and lightning fast and a great value for money offering.
Brent C
Non-profit Organisation
9 May 2024
Trustpilot
Compliant SMS messaging API
Notifyre's SMS gateway API meets United States data privacy requirements with multiple layers of enterprise-grade security, infrastructure and compliance measures. HTTPS enforced for all API calls Token-based authentication (x-api-token) AES-256 encryption in transit and at rest ISO 27001 certified and HIPAA compliant Signed webhooks with timestamp validation Vendor risk assessments and audit-ready documentation available
HTTPS enforced for all API calls Token-based authentication (x-api-token) AES-256 encryption in transit and at rest ISO 27001 certified and HIPAA compliant Signed webhooks with timestamp validation Vendor risk assessments and audit-ready documentation available 
10DLC Compliance for Developers
If you’re sending business SMS to U.S. numbers, 10DLC (10-Digit Long Code) registration is mandatory. Carriers require brands and campaigns to be registered to reduce spam and ensure message deliverability. Failure to comply can result in blocked messages and penalties. Get registed through the forms in your Notifyre account. Our expert team based in the U.S. can guide you through the process. Read the resources for compliance best practices and carrier requirements.
Get registed through the forms in your Notifyre account. Our expert team based in the U.S. can guide you through the process. Read the resources for compliance best practices and carrier requirements. 
Looking for a Twilio® SMS API alternative?
We've made it easy to make the switch! Get started with minimal changes to your existing Twilio SMS API code.
SMS API FAQs
Can I use PHP with the Notifyre SMS API?
What programming languages are available?
What is an SMS API?
What does an SMS API cost?
How can I get started with Notifyre's SMS API?
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What is an online SMS gateway?
What is programmable SMS?
What is A2P messaging?
Excellent 4.7/5
4.7/5 Customer Service Rating (1187 Reviews)
