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This Twilio product is currently available as a beta release. Some features are not yet implemented and others may be changed before the product is declared as Generally Available. Beta products are not covered by a Twilio SLA.

See this article for more information on beta product support.

Twilio Functions is a serverless environment which empowers developers to quickly and easily create production-grade, event-driven Twilio applications that scale with their businesses.

Key features of Functions:

  • Secure By Default - Automatically ensure that only Twilio requests can execute your function
  • Serverless - Offload your operational burden to Twilio and skip maintaining any infrastructure
  • Autoscaling - Automatically add capacity to meet the unique demands of your application
  • Native Twilio Integration - Use Functions as a first class member of the Twilio console with a preinitialized Twilio REST Helper Library built in
  • Familiar - Work in an environment powered by Node 8.10

How it Works

Functions overview diagram

Twilio Functions replaces your need to find hosting or stand up a server to serve TwiML or any other HTTP based responses. With Functions, you no longer have to worry about maintaining or scaling web infrastructure - it's all managed seamlessly by Twilio, scaling with your use case.

Typical use cases include manipulating voice calls, serving up tokens for our mobile SDKs or invoking the Twilio REST API in response to an event such as an inbound SMS.

Getting Started with Serverless and Twilio Functions

Visit our Programmable SMS Quickstart or Programmable Voice Quickstart for a step-by-step guide of getting your first application to production.

For a visual introduction to Functions, checkout this video:

Getting Help with Functions

To send feedback and discuss implementation details, please join our Google group and let us know how things are going!

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We all do sometimes; code is hard. Get help now from our support team, or lean on the wisdom of the crowd browsing the Twilio tag on Stack Overflow.