Twilio
Twilio SMS Introducing the easiest way to SMS enable your apps.
  • Send and receive SMS messages
  • No Contract, Pay as you go, 3¢ per message
  • SMS REST API with killer documentation
  • SMS enable your apps in minutes, not months
Salesforce Logo

Customer highlight: Salesforce used the Twilio SMS API to power attendee voting at Dreamforce 2009. See How >>

  • Step 1: Get a phone number
  • Step 2: Start sending and receiving SMS from your code
  • Step 3: Be a hero
example SMS code

Building SMS apps used to take work - lots of it. Lengthy negotiations and contracts, big setup fees, and headaches.

Introducing Twilio SMS: no contracts, no minimums, no funny stuff. You'll be up and texting in minutes for
just 3¢ / message.

Demo

Want to try out Twilio SMS in action? We wired up a phone number to Eliza, the robot therapist. Ask Eliza a question by SMS, and get an answer now:

(415) 868-5943
  • How it Works
  • Receive and Respond to SMS
  • Send SMS
  • Send SMS from within call TwiML
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  • Sender sends an SMS to your phone number
  • Twilio makes a post to your webserver over HTTP
  • Your app returns the text characters to respond with
  • Sender receives your response as an SMS
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  • Your app makes an HTTP POST to Twilio
  • Twilio delivers your message as an SMS
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  • Twilio sees an Incoming call from a number
  • Your app sends TwiML to create an SMS
  • Twilio server takes the TwiML and sends an SMS message
Get Started

Getting started is easy - check out the quickstart or jump straight into the developer docs

Things to know...

There are only a few things you can't build with Twilio SMS.

Read the SMS FAQ
  • NO SPAM
    (We're completely intolerant of unsolicited or unwanted sms)
  • YOU CAN SEND UP TO ONE MESSAGE PER SECOND PER PHONE NUMBER
    (Don't worry, we queue them for you)