SMS API

Our SMS API helps you create customer journeys through conversations—even within the context of your app.
Try it free
Illustration of 3 smart devices one with a keypad and abstract illustration on the other two.
Icon of a mobile device and a padlock.
PRIVATE SMS COMMUNICATION

Support secure text messaging

With private SMS communication, your users can seamlessly and safely book appointments, confirm deliveries, and more.

  • Enable communication without compromising privacy
  • Create a safe space for conversations between your users
  • Ensure conversations and transactions between parties stay on your platform
  • Leverage your control of the conversation
  • Perform analysis and generate new insights for your business
Interlocking chat bubbles
CUSTOMER NOTIFICATION AND ENGAGEMENT

Send the right message at the right time

Alert customers and give them an opportunity to reply or call back.

  • Deliver timely notifications about pending appointments and keep customers engaged
  • Automated notifications reduce costs, missed appointments, delivery attempts, and more
  • Let customers confirm or reschedule from within a text—via SMS, MMS, social chat apps, or voice
  • Strengthen customer relationships by creating “wow” moments with rich-media features
Icon of a padlock.
TWO-FACTOR AUTHENTICATION

Easily add a layer of security

Verify users by reaching their mobile device with SMS or voice codes.

  • A single API offers a full two-factor authentication solution
  • Provide a phone number and we’ll generate codes, localize, and more
  • Works with any phone number—no additional hardware or apps required
  • Pay only for successful conversions or a flat monthly fee for frequent logins
Icon of computer monitor with a mobile device.
SMS MARKETING

Make it easier for mobile users to discover your app

Invite website visitors to download your mobile app using SMS and an embedded link to your app-store page.

  • When your website detects a mobile visitor, it promotes your app, improving adoption
  • Interested mobile visitors can download your app easily via a link in a text message

Adaptive routing™

Optimize delivery by proactively re-routing messages around congestion.

Global compliance engine

Minimize unpredictable delivery by removing the complexity of global carriers and regulations.

Outbound network

Connect with virtually anyone in the world via a single API, completely hassle free.

See how businesses like yours are using Vonage APIs today.

Try it free

Start developing now with free credit. No credit card required.
Screen grab of the API Developer Center showing code that can be copied for use.
Deskphone with Vonage logo

Speak with an expert.

US toll-free number: 1-844-365-9460
UK toll-free number: +44 800 086 9444