SMS API
Programmable SMS API
for senders at scale.
Create, customize and send bulk texts to your customers in minutes with fast, secure & reliable API solutions.
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Trusted by leading brands
across the globe
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5.2K+
Global Users
More than 5000 businesses trust Acefone's interactions suite for their business communication.
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Rated by Customers
Rated among the top providers by thousands of users across Capterra, G2, Trustpilot & more.
2.5B+
Built for Volume
Our servers run more than 2.5 billion calls annually without sacrificing quality.
50%
More Productivity
Drive up agent productivity & efficiency by reducing their idle time between calls.
Streamline Global Communication with Acefone’s SMS API
Bulk Messaging
Reach out to customers within seconds to send timely alerts, transactional messages, and inquiry responses.
Security and Verification
Send One Time Password (OTPs) for faster two-factor authentication to verify user identities.
Promotional Messages
Appeal to your customers by sending discounts, ongoing offers and important product updates.
Benefits of SMS API
Why choose Acefone’s SMS API?
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Cloud-based Infrastructure
Seamlessly implement and scale your SMS platform without any hefty investment in infrastructure.
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Workflow Automation
Set up automated triggers based on user actions or system events to streamline business operations.
![instant delivery](https://www.acefone.com/assets/img/solutions/sms-api/instant-delivery.png)
Instant Delivery
Send urgent message alerts to a pool of customers without any latency (network- based delay).
![message tracking](https://www.acefone.com/assets/img/solutions/sms-api/message-tracking.png)
Message Tracking
Monitor the status of your sent, failed and read messages with comprehensive and detailed API logs.
Have Questions?
Learn more about Acefone's Text Message API from our experts.
Popular Features of SMS API
SMS Scheduling
Schedule your SMS campaigns according to customers’ availability.
Message Broadcasting
Send OTPs, reminders, alerts, and offers to a large audience in one click.
Integration Assistance
Get 24/7 support to seamlessly integrate SMS API with your existing applications.
API Logs
Access detailed API logs to track campaigns and debug technical errors.
Third Party Integrations
Integrate SMS API with any third-party application like bots and webhook.
Global Messaging
Send bulk messages to geographically spread audience base in seconds.
SMS API Integrations
Build out your CRM workface with out of the box integration
Explore all integrationsWhen I signed up for Acefone, I had very little VoIP knowledge, but the technical support was second to none, even for companies with limited technical skills. Added bonus: it works out cheaper than my existing single BT phone line.
Lee M.
Manager, Medical Practice
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Our company has been using Acefone from the beginning and we have never had any issue with the service. Their support is amazing, always happy to help and always polite. If you are looking for VoIP, you cannot find a better provider.
Patryk Weglarz
United Kingdom
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My experience has been very positive. The software is easy to use and integrates well with our existing system. The phone was configured in minutes by a remote technician. I've never had to ask for assistance over the last 12 months.
Gordon R.
Director, Airlines/Aviation
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Acefone is easy to set up, thanks to great help from customer service. The software has many useful features. I chose Acefone because a real person talked to me and helped me pick what I needed. They resolved all my queries there and then.
William A.
Director, Financial Services
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Acefone's onboarding process is great — the company helped me in every way imaginable. The support representative was really informative and patient with all my queries. The software appears to cover all bases as well.
Gemma L.
Proprietor, Accounting
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Award-winning SMS API Solutions for Your Business
Want to learn more about SMS API?
What is an SMS API?
An SMS API works as a translator between software applications and the SMS network. By following a set of instructions, it allows programs to send and receive text messages. This bridge enables businesses to automate SMS communication within their applications, streamlining tasks like appointment reminders, two-factor authentication, or marketing campaigns.
What are some examples of SMS API services?
Here are a few examples of some API solutions you get with Acefone’s text message API:
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Bulk SMS
With the bulk messaging solution, you can send personalized text messages to a large number of users at once. You can also embed dynamic message scripts, schedule an SMS according to your customers’ availability, and track the progress of various campaigns with instant delivery reports.
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Promotional SMS
Promotional SMSs are the texts you send to advertise and market your products, services, or events directly to customers. With Acefone’s SMS API, you can draft your message, upload the list of recipients, and broadcast your message in just one click. You also get a DND check to only reach to the customers who
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Transactional SMS
You can use the transactional SMS service to send messages related to an individual transaction such as OTPs or order alerts. DND checks are not applicable to the transactional messages to ensure that you reach out to every registered customer. You can schedule multiple SMS campaigns in the same time slot or same campaign in the multiple time slot quickly according to your business need.
How does SMS API work?
SMS APIs are designed to facilitate communication between your software application and the mobile network infrastructure. Here's a simplified breakdown of how it works:
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Integration
First, the SMS API is integrated into your existing software suite. This typically involves incorporating code that interacts with the API.
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Authentication
When your team sends a message through your CRM, it sends a request to the SMS API along with authentication credentials (like an API key) to verify its identity.
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Message Construction
The request also includes the receiver phone number and the content of the SMS message.
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Delivery
The SMS API then acts as a mediator, converting the request into a format understood by the mobile network carriers. It routes the message through their infrastructure for delivery to the receiver's phone.
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Feedback
Some SMS APIs offer delivery reports, informing your application if the message was successfully delivered.
Is there a free SMS API?
There are various service providers that offer free SMS APIs, but it's important to consider some limitations:
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Restricted Usage
Free plans often come with limitations on the number of messages you can send per month or day. This might be suitable for testing purposes but impractical for regular use.
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Limited Features
Free plans may not offer all the features of paid plans, such as message scheduling, delivery reports, or two-factor authentication.
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Reliability Concerns
Free APIs may not have the same level of uptime or reliability as paid services. This could be a problem if you need to ensure your messages are delivered consistently.
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Security Risks
Free APIs might have lower security standards compared to paid options. This could be a concern if you're sending sensitive information.
Instead, opting for an economical paid text message API solution is more feasible. At Acfefone, you get quality SMS API services at flexible plans starting from as low as $10.99/ user/ month.
Can I make my own SMS API?
There are several providers who offer solutions to build your own text message APIs, building an SMS API and gateway in-house is only advisable for limited scenarios. This approach might be suitable for a small, private network where users are tolerant of potential errors and security vulnerabilities that can arise during development.
Instead, opting for a secure solution with end-to-end encryptions, like Acefone, is better than building your own SMS API.
Read more about SMS API Solutions
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Frequently asked questions
Here are some of the most commonly asked questions about SMS APIs.
Still don't find what you're looking for? Chat with our experts!
Do you offer global SMS coverage?
Yes, you can use the SMS functionality from anywhere in the world.
How many characters can I include in my text?
You can send texts consisting of up to 153 characters with our cloud phones.
How do you protect my SMS information?
Our test message APIs protect your critical data at all times with secure connections and end-to-end encryption. Your account is also protected with two-factor authentication and Bcrypt hashed passwords. Moreover, you can also define access roles to make sure only authorized personnel can view sensitive information.
Are there any restrictions on the messages we send?
You cannot send spam texts or conduct illegal activities via our SMS services. We also ensure that you follow regulatory timings while sending promotional messages.
How to set up an SMS API?
At Acefone, our onboarding experts help you set up SMS APIs step by step until you’re ready to send text messages.
Can I receive messages from my clients as well?
Yes, you can receive incoming texts on any SMS-enabled mobile number.
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