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Send & receive SMS with twilio

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Global Text Messaging API

Build apps that send and receive SMS using phone numbers and short codes. Let friends say hello, tell customers their packages are delivered or alert employees that a shift is ready. The API enables users to communicate with your app or chat with one another; your code decides.

Build Intelligent Communications

Twilio lets you use standard web languages to build SMS and voice applications. We’re connected to carrier networks globally and expose them to you via a clean, powerful web API. So bring your favorite programming language, a web server, and build the next generation of communications with us.


Cloud Powered

We’re built in the cloud. Our API is always available, continuously upgraded and auto-scales to meet your needs. When you move your communications to the cloud, there are no tricky VPNs to configure or SMPP binds to manage. Just send us your message via HTTP, and we’ll deliver it anywhere in the world.

Text messages and your web app.

A match made in the cloud.


Customer notifications

Tell your customers when their table is ready, package is delivered, or bill is due. Twilio SMS is the perfect way to keep your customers informed. When you send an SMS, we will instantly deliver it to your user’s mobile phone.


Group messaging

Let people talk with one another over SMS using only a Twilio phone number. With group messaging, teachers can tell students about an assignment or business colleagues can make sure everyone sees the new proposal.


Account verification

Associate a phone number with an account during signup. By checking that each user has a unique phone number, you eliminate duplicate accounts. SMS is the most cost-effective way to verify your users at scale.


User security

Forget that hardware fob. Add an additional layer of security to website logins by sending temporary SMS one-time-passwords to users’ phones. That extra-step ensures that the user you want is logging into your site.

Short codes that aren't a tall order

When you need high-throughput messaging, buy a short code and send SMS at rates up to 30 messages per second. Because your texts are coming from an easy-to-remember number, customers will instantly remember your brand.

Learn more about Twilio Short Codes »


Fully featured out of the box.

Hit the ground running with a set of rich features that empower you to customize your app. Everything from unicode to global reach is built right in. No need to install software updates or buy hardware modules, just build the messaging app you want.

See all the features »

Leading companies rely on twilio

Walmart drives sales

To notify shoppers promptly and reliably, Walmart sends its latest “Value of the day” specials with Twilio SMS.

Airbnb connects travelers

Airbnb added SMS notifications to keep customers around the world up to date on their reservations, increasing satisfaction and reducing costs.

Intuit secures payments

Processing payroll for more than a million businesses nationally, Intuit added an additional layer of security to their website with SMS.

Goodby Silverstein creates buzz

Launching a national campaign for Sprint, Goodby Silverstein leveraged Twilio’s SMS and voice-enabled numbers to handle hundreds of thousands of texts and calls on just one phone number.

Support that scales with you

Every Twilio account comes with email support built in. But for the times when you need a little bit more help such as guaranteed response times or need a human on the phone, you can upgrade to Premium Support.

See plans and pricing for support »

Pay as you go

Twilio SMS includes a rich set of features that enables you to build powerful applications. The API is ready to go from signup and is continuously upgraded. No software patches or hardware upgrades needed! For general sales inquiries, get in touch with a sales consultant between 8am and 5pm PT.