SMS API

Nexmo's SMS API enables you to send and receive text messages to and from users worldwide, using simple REST APIs.

Getting Started

Send an SMS

This example shows you how to send an SMS to your chosen number.

First, sign up for a Nexmo account if you don't already have one, and make a note of your API key and secret on the dashboard getting started page.

Replace the following placeholder values in the sample code:

Key Description
NEXMO_API_KEY Your Nexmo API key.
NEXMO_API_SECRET Your Nexmo API secret.

Write the code

Add the following to send-sms.sh:

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curl -X "POST" "https://rest.nexmo.com/sms/json" \
  -d "from=AcmeInc" \
  -d "text=A text message sent using the Nexmo SMS API" \
  -d "to=$TO_NUMBER" \
  -d "api_key=$NEXMO_API_KEY" \
  -d "api_secret=$NEXMO_API_SECRET"

View full source

Run your code

Save this file to your machine and run it: 

sh send-sms.sh

Prerequisites

Install dependencies

npm install nexmo
Initialize your dependencies

Create a file named send.js and add the following code:

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const Nexmo = require('nexmo')

const nexmo = new Nexmo({
  apiKey: NEXMO_API_KEY,
  apiSecret: NEXMO_API_SECRET
})

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Write the code

Add the following to send.js:

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const from = 'Acme Inc'
const to = TO_NUMBER
const text = 'A text message sent using the Nexmo SMS API'

nexmo.message.sendSms(from, to, text)

View full source

Run your code

Save this file to your machine and run it: 

node send.js

Prerequisites

Install dependencies

Add the following to build.gradle:

compile 'com.nexmo:client:4.0.0'
Initialize your dependencies

Create a class named SendMessage and add the following code to the main method:

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NexmoClient client = new NexmoClient.Builder().apiKey(NEXMO_API_KEY).apiSecret(NEXMO_API_SECRET).build();

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Write the code

Add the following to the main method of the SendMessage class:

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TextMessage message = new TextMessage("Acme Inc", TO_NUMBER, "A text message sent using the Nexmo SMS API");

SmsSubmissionResponse response = client.getSmsClient().submitMessage(message);

for (SmsSubmissionResponseMessage responseMessage : response.getMessages()) {
    System.out.println(responseMessage);
}

View full source

Run your code

We can use the application plugin for Gradle to simplify the running of our application. Update your build.gradle with the following:

apply plugin: 'application'
mainClassName = project.hasProperty('main') ? project.getProperty('main') : ''

Run the following gradle command to execute your application, replacing com.nexmo.quickstart.sms with the package containing SendMessage:

gradle run -Pmain=com.nexmo.quickstart.sms.SendMessage

Prerequisites

Install dependencies

Install-Package Nexmo.Csharp.Client
Initialize your dependencies

Create a file named SMSController.cs and add the following code:

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var client = new Client(creds: new Nexmo.Api.Request.Credentials
{
    ApiKey = "NEXMO_API_KEY",
    ApiSecret = "NEXMO_API_SECRET"
});

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Write the code

Add the following to SMSController.cs:

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var results = Client.SMS.Send(request: new SMS.SMSRequest
{
    from = "Acme Inc",
    to = TO_NUMBER,
    text = "A test SMS sent using the Nexmo SMS API"
});

View full source

Prerequisites

Install dependencies

composer require nexmo/client
Initialize your dependencies

Create a file named send-sms.php and add the following code:

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$basic  = new \Nexmo\Client\Credentials\Basic(NEXMO_API_KEY, NEXMO_API_SECRET);
$client = new \Nexmo\Client($basic);

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Write the code

Add the following to send-sms.php:

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$message = $client->message()->send([
    'to' => TO_NUMBER,
    'from' => 'Acme Inc',
    'text' => 'A text message sent using the Nexmo SMS API'
]);

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Run your code

Save this file to your machine and run it: 

php send-sms.php

Prerequisites

Install dependencies

pip install nexmo
Initialize your dependencies

Create a file named send-an-sms.py and add the following code:

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import nexmo

client = nexmo.Client(key=NEXMO_API_KEY, secret=NEXMO_API_SECRET)

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Write the code

Add the following to send-an-sms.py:

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client.send_message({
    'from': 'Acme Inc',
    'to': TO_NUMBER,
    'text': 'A text message sent using the Nexmo SMS API',
})

View full source

Run your code

Save this file to your machine and run it: 

python send-an-sms.py

Prerequisites

Install dependencies

gem install nexmo
Initialize your dependencies

Create a file named send.rb and add the following code:

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require 'nexmo'

client = Nexmo::Client.new(
  api_key: NEXMO_API_KEY,
  api_secret: NEXMO_API_SECRET
)

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Write the code

Add the following to send.rb:

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client.sms.send(
  from: 'Acme Inc',
  to: RECIPIENT_NUMBER,
  text: 'A text message sent using the Nexmo SMS API'
)

View full source

Run your code

Save this file to your machine and run it: 

ruby send.rb

Contents

The rest of this document contains the following information:

Concepts

Before using the Nexmo SMS API, familiarise yourself with the following:

Guides

Building Blocks

Tutorials

Reference