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Enter your phone number and receive an SMS

  • What's Happening
  • Technical Version

When you click "Send SMS", a request is sent to Twilio to deliver an SMS to the provided phone number. The server logic determines the weather forecast for San Francisco and sends a related message and graphic to the phone number.

When you click "Send SMS", an AJAX request is made that, in turn, triggers a server-side HTTP request to Twilio, which provides a number to SMS, as well as a URL of the photo to be delivered. Image media is automatically transcoded as needed to adapt to carriers and handsets.

  • PHP
  • Node
  • Python
  • Ruby
  • Java
  • .NET (C#)
// Get the PHP helper library from
require_once '/path/to/vendor/autoload.php'; // Loads the library
use Twilio\Rest\Client;

// Your Account Sid and Auth Token from
$sid = "AC5ef872f6da5a21de157d80997a64bd33";
$token = "your_auth_token";
$client = new Client($sid, $token);

    'from' => "+14158141829",
    'body' => "Tomorrow's forecast in Financial District, San Francisco is Clear.",
    'mediaUrl' => "",
// Download the twilio-csharp library from
using System;
using Twilio;
using Twilio.Rest.Api.V2010.Account;
using Twilio.Types;
using System.Collections.Generic;

class Example
  static void Main(string[] args)
    // Find your Account Sid and Auth Token at
    const string accountSid = "AC5ef872f6da5a21de157d80997a64bd33";
    const string authToken = "your_auth_token";
    TwilioClient.Init(accountSid, authToken);

    var mediaUrl = new List() {
      new Uri( "" )
    var to = new PhoneNumber("+16518675309");
    var message = MessageResource.Create(
      from: new PhoneNumber("+14158141829"),
      body: "Tomorrow's forecast in Financial District, San Francisco is Clear",
      mediaUrl: mediaUrl);
// Install the Java helper library from
import com.twilio.Twilio;
import com.twilio.type.PhoneNumber;

public class Example {
  // Find your Account Sid and Token at
  public static final String ACCOUNT_SID = "AC5ef872f6da5a21de157d80997a64bd33";
  public static final String AUTH_TOKEN = "your_auth_token";

  public static void main(String[] args) {
    Twilio.init(ACCOUNT_SID, AUTH_TOKEN);

    Message message = Message
      .creator(new PhoneNumber("+16518675309"), new PhoneNumber("+14158141829"),
        "Tomorrow's forecast in Financial District, San Francisco is Clear")

// Twilio Credentials
const accountSid = 'AC5ef872f6da5a21de157d80997a64bd33';
const authToken = 'your_auth_token';

// require the Twilio module and create a REST client
const client = require('twilio')(accountSid, authToken);

    to: '+16518675309',
    from: '+14158141829',
    body: "Tomorrow's forecast in Financial District, San Francisco is Clear",
    mediaUrl: '',
  .then((message) => console.log(message.sid));
from import Client

# put your own credentials here
account_sid = "AC5ef872f6da5a21de157d80997a64bd33"
auth_token = "your_auth_token"

client = Client(account_sid, auth_token)

  body="Tomorrow's forecast in Financial District, San Francisco is Clear",
require 'rubygems' # not necessary with ruby 1.9 but included for completeness
require 'twilio-ruby'

# put your own credentials here
account_sid = 'AC5ef872f6da5a21de157d80997a64bd33'
auth_token = '[AuthToken]'

# set up a client to talk to the Twilio REST API
@client = account_sid, auth_token

  :from => '+14158141829',
  :to => '+16518675309',
  :body => 'Tomorrow\'s forecast in Financial District, San Francisco is Clear.',
  :media_url => ''

Powerful API Primitives

  • <Message> using custom app logic

    Webhooks allow your app to define custom logic for every response. Build nearly any workflow you can imagine.

    View Docs
    <?xml version="1.0" encoding="UTF-8"?>
  • Send pictures with <Media>

    Send and receive pictures on all U.S. and Canadian phone numbers.

    View Docs
    <?xml version="1.0" encoding="UTF-8"?>
        <Body>You need to see this to believe it...</Body>
  • Real-time status webhooks

    See every step your message takes as it traverses the global telecom network.

    View Docs
    <?xml version="1.0" encoding="UTF-8"?>
      <Message statusCallback="/SMSHandler.php">ahoy!</Message>
The Twilio advantage
  • Communicate reliably

    Experience a 99.95% uptime SLA made possible with automated failover and zero maintenance windows.

  • Operate at scale

    Extend the same app you write once to new markets with configurable features for localization and compliance.

  • Many channels

    Use the same platform you know for voice, SMS, video, chat, two-factor authentication, and more.

  • No shenanigans

    Get to market faster with pay-as-you-go pricing, free support, and the freedom to scale up or down without contracts.