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Scale your messaging with a single, programmable SMS API

At Infobip, we ensure the fastest SMS delivery over the highest number of direct operator connections of any messaging provider. Scale messaging from your systems quickly, reliably, and securely with our programmable SMS messaging API.

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See SMS pricing

final String platform = const string platform = const platform = platform = platform = $platform = ; ; ;

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package main import ( "fmt" "strings" "net/http" "io/ioutil" ) func main() { url := "https://{baseUrl}/sms/3/messages" method := "POST" payload := strings.NewReader(`{"messages":[{"sender":"InfoSMS","destinations":[{"to":"41793026727"}],"content":{"text":"This is a sample message"}}]}`) client := &http.Client { } req, err := http.NewRequest(method, url, payload) if err != nil { fmt.Println(err) return } req.Header.Add("Authorization", "{authorization}") req.Header.Add("Content-Type", "application/json") req.Header.Add("Accept", "application/json") res, err := client.Do(req) if err != nil { fmt.Println(err) return } defer res.Body.Close() body, err := ioutil.ReadAll(res.Body) if err != nil { fmt.Println(err) return } fmt.Println(string(body)) }

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import http.client import json conn = http.client.HTTPSConnection("{baseUrl}") payload = json.dumps({ "messages": [ { "sender": "InfoSMS", "destinations": [ { "to": "41793026727" } ], "content": { "text": "This is a sample message" } } ] }) headers = { 'Authorization': '{authorization}', 'Content-Type': 'application/json', 'Accept': 'application/json' } conn.request("POST", "/sms/3/messages", payload, headers) res = conn.getresponse() data = res.read() print(data.decode("utf-8"))

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require "uri" require "json" require "net/http" url = URI("https://{baseUrl}/sms/3/messages") https = Net::HTTP.new(url.host, url.port) https.use_ssl = true request = Net::HTTP::Post.new(url) request["Authorization"] = "{authorization}" request["Content-Type"] = "application/json" request["Accept"] = "application/json" request.body = JSON.dump({ "messages": [ { "sender": "InfoSMS", "destinations": [ { "to": "41793026727" } ], "content": { "text": "This is a sample message" } } ] }) response = https.request(request) puts response.read_body

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<?php $curl = curl_init(); curl_setopt_array($curl, array( CURLOPT_URL => 'https://{baseUrl}/sms/3/messages', CURLOPT_RETURNTRANSFER => true, CURLOPT_ENCODING => '', CURLOPT_MAXREDIRS => 10, CURLOPT_TIMEOUT => 0, CURLOPT_FOLLOWLOCATION => true, CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1, CURLOPT_CUSTOMREQUEST => 'POST', CURLOPT_POSTFIELDS =>'{"messages":[{"sender":"InfoSMS","destinations":[{"to":"41793026727"}],"content":{"text":"This is a sample message"}}]}', CURLOPT_HTTPHEADER => array( 'Authorization: {authorization}', 'Content-Type: application/json', 'Accept: application/json' ), )); $response = curl_exec($curl); curl_close($curl); echo $response;

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What is an SMS API and how can you use it?

An SMS API is a set of programming tools that allows you to integrate SMS messaging into your existing systems. Besides sending and receiving SMS messages, our SMS API also lets you set up advanced features like batch sending, scheduling, URL tracking, language configuration, etc.

Sign up for free to get your API key and base URL
Get access to over 190 countries, with reliable delivery enabled by more than 800 direct connections
Enable low-latency, high-reliability interactions covering every possible use case, from SMS alerts to SMS 2FA

See our SMS API docs

See our SDKs

Main features of our SMS API

Test our SMS API for free

Start by signing up for a free Infobip account. This will activate your 60-day free trial, which allows you to try out our APIs and other features. Follow the steps in our API documentation to get your API key.

Try for free Contact an expert

How businesses use SMS APIs

Financial services

Companies like Mambu, a cloud banking platform, use SMS APIs to send real-time notifications via SMS and enhance security with SMS-based two-factor authentication. This helps them provide better service to their clients and ensures secure operations.

Read customer story

Transportation & logistics

During the COVID-19 pandemic, MrSpeedy used SMS and Voice APIs to manage increased demand and provide reliable customer support remotely. This ensured timely verifications, order confirmations, and real-time support, all while reducing costs.

Read customer story

SaaS

Platforms like Text Global can use SMS APIs to scale their marketing capabilities, integrating multiple communication channels such as SMS, Email, Voice, and RCS Business Messaging. This has led to significant revenue growth and improved customer retention.

Read customer story

We started laser-focused on SMEs, but the client needs evolved rapidly. Infobip’s partnership program was a game-changer that allowed us to leverage richer features via APIs, unlock new use cases with their omnichannel communications platform and integrate more channels such as Voice, Email, RCS and SMS. This empowered us to serve larger clients with advanced use cases – averaging a remarkable 30-45% revenue growth year-over-year. And now, with CPaaS X, we’re poised to hand even greater control to our clients, accelerating their business at scale.

Andrew Cook

Managing Director, Text Global

Flexible pricing models

Choose a pricing model that best suits your needs.

See SMS pricing

Pay-as-you-go

Top up your account as you need with a flexible, pay-as-you-go model.

Volume-based discounts

Want to send large amounts of SMS? Get a special offer for high volumes.

Why use an API for SMS campaigns?

Here are a few main benefits of using an SMS API in your next campaign:

Cost-effectiveness

SMS marketing is considered affordable in general, especially considering the size of the audience you can reach for very little investment. With the added heavy lifting an SMS API can help with in terms of scalability, its value to your business is only increased.

For example, you can use Infobip’s SMS API at no cost, with charges only applying to sent messages. If you have a team of developers capable of working with APIs, this method is more cost-effective than paying extra fees for a cloud platform to send SMS.

Measurability, reporting, and analytics

It is very easy to track the performance of SMS campaigns. With robust SMS APIs, CPaaS providers such as Infobip are also able to provide you with analytics features that you can integrate into your systems, making it even easier to track the performance of your campaigns in one place.

Being able to draw such straightforward conclusions from your campaign results means less time and energy is spent organizing and deciphering data, making it easier to demonstrate your campaign’s success.

Personalization

An API allows your developers to integrate SMS capabilities into your software or services, which makes it easy to use your own customer data for personalizing SMS messages.

This makes your customers feel more connected to and engaged with your brand, and personally catered for.

Automation and scalability

The level of automation enabled by APIs makes it easy to scale your SMS campaigns up or down depending on your audience. This means you can grow your business without fear of anything holding you back, safe in the knowledge that your API can handle heavy loads of automated tasks, even at peak times.

Integration with other systems

Being able to integrate your chosen API with your existing systems makes for a seamless workflow, with all the tools that you need at your fingertips and working together. When choosing an API it’s important to see which programs and platforms they work well with.