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Tutorials, best practices, code samples, and inspiration to build all your communications experiences and digital engagement solutions on Twilio.
Tutorials, best practices, code samples, and inspiration to build all your communications experiences and digital engagement solutions on Twilio.
Find sample code and step-by-step guides to help you tackle your next project with Twilio.
Set up SMS or voice verifications to quickly authenticate users, fight fraud, and protect user accounts.
Add user verification over SMS, Voice, WhatsApp, Email, and other channels – or create TOTPs for authenticator apps
Query real-time phone intelligence data with our Lookup API to reduce fraud risk and increase deliverability
Twilio Verify Fraud Guard stops artificially inflated traffic attacks before they happen
3.5B+ verifications per year
Send a verification token
// Download the helper library from https://www.twilio.com/docs/node/install
// Find your Account SID and Auth Token at twilio.com/console
// and set the environment variables. See http://twil.io/secure
const accountSid = process.env.TWILIO_ACCOUNT_SID;
const authToken = process.env.TWILIO_AUTH_TOKEN;
const client = require('twilio')(accountSid, authToken);
client.verify.v2.services('VAXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX')
.verifications
.create({to: '+15017122661', channel: 'sms'})
.then(verification => console.log(verification.status));
# Download the helper library from https://www.twilio.com/docs/python/install
import os
from twilio.rest import Client
# Find your Account SID and Auth Token at twilio.com/console
# and set the environment variables. See http://twil.io/secure
account_sid = os.environ['TWILIO_ACCOUNT_SID']
auth_token = os.environ['TWILIO_AUTH_TOKEN']
client = Client(account_sid, auth_token)
verification = client.verify \
.v2 \
.services('VAXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX') \
.verifications \
.create(to='+15017122661', channel='sms')
print(verification.status)
// Install the C# / .NET helper library from twilio.com/docs/csharp/install
using System;
using Twilio;
using Twilio.Rest.Verify.V2.Service;
class Program
{
static void Main(string[] args)
{
// Find your Account SID and Auth Token at twilio.com/console
// and set the environment variables. See http://twil.io/secure
string accountSid = Environment.GetEnvironmentVariable("TWILIO_ACCOUNT_SID");
string authToken = Environment.GetEnvironmentVariable("TWILIO_AUTH_TOKEN");
TwilioClient.Init(accountSid, authToken);
var verification = VerificationResource.Create(
to: "+15017122661",
channel: "sms",
pathServiceSid: "VAXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
);
Console.WriteLine(verification.Status);
}
}
// Install the Java helper library from twilio.com/docs/java/install
import com.twilio.Twilio;
import com.twilio.rest.verify.v2.service.Verification;
public class Example {
// Find your Account SID and Auth Token at twilio.com/console
// and set the environment variables. See http://twil.io/secure
public static final String ACCOUNT_SID = System.getenv("TWILIO_ACCOUNT_SID");
public static final String AUTH_TOKEN = System.getenv("TWILIO_AUTH_TOKEN");
public static void main(String[] args) {
Twilio.init(ACCOUNT_SID, AUTH_TOKEN);
Verification verification = Verification.creator(
"VAXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
"+15017122661",
"sms")
.create();
System.out.println(verification.getStatus());
}
}
<?php
// Update the path below to your autoload.php,
// see https://getcomposer.org/doc/01-basic-usage.md
require_once '/path/to/vendor/autoload.php';
use Twilio\Rest\Client;
// Find your Account SID and Auth Token at twilio.com/console
// and set the environment variables. See http://twil.io/secure
$sid = getenv("TWILIO_ACCOUNT_SID");
$token = getenv("TWILIO_AUTH_TOKEN");
$twilio = new Client($sid, $token);
$verification = $twilio->verify->v2->services("VAXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")
->verifications
->create("+15017122661", "sms");
print($verification->status);
# Download the helper library from https://www.twilio.com/docs/ruby/install
require 'rubygems'
require 'twilio-ruby'
# Find your Account SID and Auth Token at twilio.com/console
# and set the environment variables. See http://twil.io/secure
account_sid = ENV['TWILIO_ACCOUNT_SID']
auth_token = ENV['TWILIO_AUTH_TOKEN']
@client = Twilio::REST::Client.new(account_sid, auth_token)
verification = @client.verify
.v2
.services('VAXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX')
.verifications
.create(to: '+15017122661', channel: 'sms')
puts verification.status
twilio api:verify:v2:services:verifications:create \
--service-sid VAXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX \
--to +15017122661 \
--channel sms
curl -X POST "https://verify.twilio.com/v2/Services/VAXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX/Verifications" \
--data-urlencode "To=+15017122661" \
--data-urlencode "Channel=sms" \
-u $TWILIO_ACCOUNT_SID:$TWILIO_AUTH_TOKEN
Build custom voice call experiences for your applications to reach customers around the world.
Quickly send and receive voice calls from your application
Monitor voice statistics and debug call issues with Voice Insights
Find tutorials, walkthroughs, and sample code for our SDKs and for using the API directly
100M daily calls processed
Make an outbound call
// Download the helper library from https://www.twilio.com/docs/node/install
// Find your Account SID and Auth Token at twilio.com/console
// and set the environment variables. See http://twil.io/secure
const accountSid = process.env.TWILIO_ACCOUNT_SID;
const authToken = process.env.TWILIO_AUTH_TOKEN;
const client = require('twilio')(accountSid, authToken);
client.calls
.create({
url: 'http://demo.twilio.com/docs/voice.xml',
to: '+14155551212',
from: '+15017122661'
})
.then(call => console.log(call.sid));
# Download the helper library from https://www.twilio.com/docs/python/install
import os
from twilio.rest import Client
# Find your Account SID and Auth Token at twilio.com/console
# and set the environment variables. See http://twil.io/secure
account_sid = os.environ['TWILIO_ACCOUNT_SID']
auth_token = os.environ['TWILIO_AUTH_TOKEN']
client = Client(account_sid, auth_token)
call = client.calls.create(
url='http://demo.twilio.com/docs/voice.xml',
to='+14155551212',
from_='+15017122661'
)
print(call.sid)
// Install the C# / .NET helper library from twilio.com/docs/csharp/install
using System;
using Twilio;
using Twilio.Rest.Api.V2010.Account;
class Program
{
static void Main(string[] args)
{
// Find your Account SID and Auth Token at twilio.com/console
// and set the environment variables. See http://twil.io/secure
string accountSid = Environment.GetEnvironmentVariable("TWILIO_ACCOUNT_SID");
string authToken = Environment.GetEnvironmentVariable("TWILIO_AUTH_TOKEN");
TwilioClient.Init(accountSid, authToken);
var call = CallResource.Create(
url: new Uri("http://demo.twilio.com/docs/voice.xml"),
to: new Twilio.Types.PhoneNumber("+14155551212"),
from: new Twilio.Types.PhoneNumber("+15017122661")
);
Console.WriteLine(call.Sid);
}
}
// Install the Java helper library from twilio.com/docs/java/install
import com.twilio.Twilio;
import com.twilio.rest.api.v2010.account.Call;
import com.twilio.type.PhoneNumber;
import java.net.URI;
public class Example {
// Find your Account SID and Auth Token at twilio.com/console
// and set the environment variables. See http://twil.io/secure
public static final String ACCOUNT_SID = System.getenv("TWILIO_ACCOUNT_SID");
public static final String AUTH_TOKEN = System.getenv("TWILIO_AUTH_TOKEN");
public static void main(String[] args) {
Twilio.init(ACCOUNT_SID, AUTH_TOKEN);
Call call = Call.creator(
new com.twilio.type.PhoneNumber("+14155551212"),
new com.twilio.type.PhoneNumber("+15017122661"),
URI.create("http://demo.twilio.com/docs/voice.xml"))
.create();
System.out.println(call.getSid());
}
}
<?php
// Update the path below to your autoload.php,
// see https://getcomposer.org/doc/01-basic-usage.md
require_once '/path/to/vendor/autoload.php';
use Twilio\Rest\Client;
// Find your Account SID and Auth Token at twilio.com/console
// and set the environment variables. See http://twil.io/secure
$sid = getenv("TWILIO_ACCOUNT_SID");
$token = getenv("TWILIO_AUTH_TOKEN");
$twilio = new Client($sid, $token);
$call = $twilio->calls
->create("+14155551212", // to
"+15017122661", // from
["url" => "http://demo.twilio.com/docs/voice.xml"]
);
print($call->sid);
# Download the helper library from https://www.twilio.com/docs/ruby/install
require 'rubygems'
require 'twilio-ruby'
# Find your Account SID and Auth Token at twilio.com/console
# and set the environment variables. See http://twil.io/secure
account_sid = ENV['TWILIO_ACCOUNT_SID']
auth_token = ENV['TWILIO_AUTH_TOKEN']
@client = Twilio::REST::Client.new(account_sid, auth_token)
call = @client.calls.create(
url: 'http://demo.twilio.com/docs/voice.xml',
to: '+14155551212',
from: '+15017122661'
)
puts call.sid
# Install the twilio-cli from https://twil.io/cli
twilio api:core:calls:create \
--url http://demo.twilio.com/docs/voice.xml \
--to +14155551212 \
--from +15017122661
curl -X POST "https://api.twilio.com/2010-04-01/Accounts/$TWILIO_ACCOUNT_SID/Calls.json" \
--data-urlencode "Url=http://demo.twilio.com/docs/voice.xml" \
--data-urlencode "To=+14155551212" \
--data-urlencode "From=+15017122661" \
-u $TWILIO_ACCOUNT_SID:$TWILIO_AUTH_TOKEN
Send and receive messages via SMS, MMS, WhatsApp, Facebook Messenger, and more through our Messaging and Conversations APIs.
Sample code and tutorials for our C#/.NET, Java, Node.js, PHP, Python, Ruby, and Go helper libraries
Expand your use case internationally in 180+ countries while fighting fraud
99.95% + monthly API uptime
Create a message
// Download the helper library from https://www.twilio.com/docs/node/install
// Find your Account SID and Auth Token at twilio.com/console
// and set the environment variables. See http://twil.io/secure
const accountSid = process.env.TWILIO_ACCOUNT_SID;
const authToken = process.env.TWILIO_AUTH_TOKEN;
const client = require('twilio')(accountSid, authToken);
client.messages
.create({from: '+15017122661', body: 'Hi there', to: '+15558675310'})
.then(message => console.log(message.sid));
# Download the helper library from https://www.twilio.com/docs/python/install
import os
from twilio.rest import Client
# Find your Account SID and Auth Token at twilio.com/console
# and set the environment variables. See http://twil.io/secure
account_sid = os.environ['TWILIO_ACCOUNT_SID']
auth_token = os.environ['TWILIO_AUTH_TOKEN']
client = Client(account_sid, auth_token)
message = client.messages.create(
from_='+15017122661',
body='Hi there',
to='+15558675310'
)
print(message.sid)
// Install the C# / .NET helper library from twilio.com/docs/csharp/install
using System;
using Twilio;
using Twilio.Rest.Api.V2010.Account;
class Program
{
static void Main(string[] args)
{
// Find your Account SID and Auth Token at twilio.com/console
// and set the environment variables. See http://twil.io/secure
string accountSid = Environment.GetEnvironmentVariable("TWILIO_ACCOUNT_SID");
string authToken = Environment.GetEnvironmentVariable("TWILIO_AUTH_TOKEN");
TwilioClient.Init(accountSid, authToken);
var message = MessageResource.Create(
from: new Twilio.Types.PhoneNumber("+15017122661"),
body: "Hi there",
to: new Twilio.Types.PhoneNumber("+15558675310")
);
Console.WriteLine(message.Sid);
}
}
// Install the Java helper library from twilio.com/docs/java/install
import com.twilio.Twilio;
import com.twilio.rest.api.v2010.account.Message;
import com.twilio.type.PhoneNumber;
public class Example {
// Find your Account SID and Auth Token at twilio.com/console
// and set the environment variables. See http://twil.io/secure
public static final String ACCOUNT_SID = System.getenv("TWILIO_ACCOUNT_SID");
public static final String AUTH_TOKEN = System.getenv("TWILIO_AUTH_TOKEN");
public static void main(String[] args) {
Twilio.init(ACCOUNT_SID, AUTH_TOKEN);
Message message = Message.creator(
new com.twilio.type.PhoneNumber("+15558675310"),
new com.twilio.type.PhoneNumber("+15017122661"),
"Hi there")
.create();
System.out.println(message.getSid());
}
}
require_once '/path/to/vendor/autoload.php';
use Twilio\\Rest\\Client;
// Find your Account SID and Auth Token at twilio.com/console
// and set the environment variables. See http://twil.io/secure
\$sid = getenv("TWILIO_ACCOUNT_SID");
\$token = getenv("TWILIO_AUTH_TOKEN");
\$twilio = new Client(\$sid, \$token);
\$message = \$twilio->messages
->create("+15558675310", // to
["from" => "+15017122661", "body" => "Hi there"]
);
print(\$message->sid);
# Download the helper library from https://www.twilio.com/docs/ruby/install
require 'rubygems'
require 'twilio-ruby'
# Find your Account SID and Auth Token at twilio.com/console
# and set the environment variables. See http://twil.io/secure
account_sid = ENV['TWILIO_ACCOUNT_SID']
auth_token = ENV['TWILIO_AUTH_TOKEN']
@client = Twilio::REST::Client.new(account_sid, auth_token)
message = @client.messages.create(
from: '+15017122661',
body: 'Hi there',
to: '+15558675310'
)
puts message.sid
# Install the twilio-cli from https://twil.io/cli
twilio api:core:messages:create \\
--from +15017122661 \\
--body "Hi there" \\
--to +15558675310
curl -X POST "https://api.twilio.com/2010-04-01/Accounts/\$TWILIO_ACCOUNT_SID/Messages.json" \\
--data-urlencode "From=+15017122661" \\
--data-urlencode "Body=Hi there" \\
--data-urlencode "To=+15558675310" \\
-u \$TWILIO_ACCOUNT_SID:\$TWILIO_AUTH_TOKEN
Reach customers with the Twilio SendGrid Email API for reliable email delivery at scale.
Send single or bulk emails and monitor your sending performance
Receive and react to emails with the Inbound Parse Webhook
1.6T+ emails processed in 2022
Send an email
// using Twilio SendGrid's v3 Node.js Library
// https://github.com/sendgrid/sendgrid-nodejs
const sgMail = require('@sendgrid/mail');
sgMail.setApiKey(process.env.SENDGRID_API_KEY);
const msg = {
to: '[email protected]',
from: '[email protected]',
subject: 'Sending with Twilio SendGrid is Fun',
text: 'and easy to do anywhere, even with Node.js',
html: '<strong>and easy to do anywhere, even with Node.js</strong>',
};
sgMail.send(msg);
# using SendGrid's Python Library
# https://github.com/sendgrid/sendgrid-python
import os
from sendgrid import SendGridAPIClient
from sendgrid.helpers.mail import Mail
message = Mail(
from_email='[email protected]',
to_emails='[email protected]',
subject='Sending with Twilio SendGrid is Fun',
html_content='<strong>and easy to do anywhere, even with Python</strong>')
try:
sg = SendGridAPIClient(os.environ.get('SENDGRID_API_KEY'))
response = sg.send(message)
print(response.status_code)
print(response.body)
print(response.headers)
except Exception as e:
print(e.message)
// using SendGrid's C# Library
// https://github.com/sendgrid/sendgrid-csharp
using SendGrid;
using SendGrid.Helpers.Mail;
using System;
using System.Threading.Tasks;
namespace Example
{
internal class Example
{
private static void Main()
{
Execute().Wait();
}
static async Task Execute()
{
var apiKey = Environment.GetEnvironmentVariable("NAME_OF_THE_ENVIRONMENT_VARIABLE_FOR_YOUR_SENDGRID_KEY");
var client = new SendGridClient(apiKey);
var from = new EmailAddress("[email protected]", "Example User");
var subject = "Sending with SendGrid is Fun";
var to = new EmailAddress("[email protected]", "Example User");
var plainTextContent = "and easy to do anywhere, even with C#";
var htmlContent = "<strong>and easy to do anywhere, even with C#</strong>";
var msg = MailHelper.CreateSingleEmail(from, to, subject, plainTextContent, htmlContent);
var response = await client.SendEmailAsync(msg);
}
}
}
// using SendGrid's Java Library
// https://github.com/sendgrid/sendgrid-java
import com.sendgrid.*;
import java.io.IOException;
public class Example {
public static void main(String[] args) throws IOException {
Email from = new Email("[email protected]");
String subject = "Sending with SendGrid is Fun";
Email to = new Email("[email protected]");
Content content = new Content("text/plain", "and easy to do anywhere, even with Java");
Mail mail = new Mail(from, subject, to, content);
SendGrid sg = new SendGrid(System.getenv("SENDGRID_API_KEY"));
Request request = new Request();
try {
request.setMethod(Method.POST);
request.setEndpoint("mail/send");
request.setBody(mail.build());
Response response = sg.api(request);
System.out.println(response.getStatusCode());
System.out.println(response.getBody());
System.out.println(response.getHeaders());
} catch (IOException ex) {
throw ex;
}
}
}
<?php
require 'vendor/autoload.php'; // If you're using Composer (recommended)
// Comment out the above line if not using Composer
// require("/sendgrid-php.php");
// If not using Composer, uncomment the above line and
// download sendgrid-php.zip from the latest release here,
// replacing with the path to the sendgrid-php.php file,
// which is included in the download:
// https://github.com/sendgrid/sendgrid-php/releases
$email = new \SendGrid\Mail\Mail();
$email->setFrom("[email protected]", "Example User");
$email->setSubject("Sending with SendGrid is Fun");
$email->addTo("[email protected]", "Example User");
$email->addContent("text/plain", "and easy to do anywhere, even with PHP");
$email->addContent(
"text/html", "<strong>and easy to do anywhere, even with PHP</strong>"
);
$sendgrid = new \SendGrid(getenv('SENDGRID_API_KEY'));
try {
$response = $sendgrid->send($email);
print $response->statusCode() . "\n";
print_r($response->headers());
print $response->body() . "\n";
} catch (Exception $e) {
echo 'Caught exception: '. $e->getMessage() ."\n";
}
# using SendGrid's Ruby Library
# https://github.com/sendgrid/sendgrid-ruby
require 'sendgrid-ruby'
include SendGrid
from = Email.new(email: '[email protected]')
to = Email.new(email: '[email protected]')
subject = 'Sending with SendGrid is Fun'
content = Content.new(type: 'text/plain', value: 'and easy to do anywhere, even with Ruby')
mail = Mail.new(from, subject, to, content)
sg = SendGrid::API.new(api_key: ENV['SENDGRID_API_KEY'])
response = sg.client.mail._('send').post(request_body: mail.to_json)
puts response.status_code
puts response.body
puts response.headers
curl --request POST \
--url https://api.sendgrid.com/v3/mail/send \
--header "Authorization: Bearer $SENDGRID_API_KEY" \
--header 'Content-Type: application/json' \
--data '{"personalizations": [{"to": [{"email": "[email protected]"}]}],"from": {"email": "[email protected]"},"subject": "Sending with SendGrid is Fun","content": [{"type": "text/plain", "value": "and easy to do anywhere, even with cURL"}]}'
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Start here to see API reference documentation, SDKs in your language, and sample apps.
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