SMS APIs

Send and receive text messages globally with the API that over five million developers depend on.

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Build with confidence

Twilio provides the SMS API with enterprise-grade reliability, security and compliance at global scale.

SMS
Deliverability

Reliable delivery

With 99.999%+ API uptime and redundant carrier interconnects in every region, Twilio helps you ensure your messages are delivered.
Global

Global coverage

Twilio has SMS-enabled phone numbers in more than 40 countries and carrier relationships worldwide to reach nearly every mobile subscriber on the planet.
Compliance

Enterprise-grade security and compliance

GDPR-compliant, ISO 27001, SOC-2 certified for 2FA, and built-in SMS opt-in/opt-out management.

Documentation

Top-notch documentation

Get to production faster using helper libraries, monitoring and debugging tools, documentation in your language, and even a serverless environment to host your code.

SMS APIs built for developers

Messaging at scale

Twilio helps you scale to new markets, higher volume thresholds, or new channels like WhatsApp or Facebook Messenger with a single SMS API.

  • Carrier complexities handled for you: Twilio handles ever-changing telecom logic and carrier specific rules to ensure your message reaches its destination.
  • Text message delivery intelligence: Send messages from a pool of phone numbers to speed up delivery or use the same local number to maintain a conversation. We handle the backend logic for you.
  • Smart content handling: Automatic picture transcoding, character encoding, and message assembly ensure that messages are delivered reliably across the globe without needing custom code.
  • Many channels: With Twilio, you can add more channels with the same API, such as WhatsApp, Facebook Messenger, LINE, RCS Business Messaging, and more.
How 1-800 Flowers powers communications with Twilio
How 1-800 Flowers powers communications with Twilio

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