Messaging API

Code once and message across channels at scale. Connect with your customers anywhere in the world with SMS, RCS, and WhatsApp all together in one API .

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Personalize customer experience
Eliminate repetitive efforts
Improve customer communications

Reach More Customers

Integrate a single Messaging API and start sending reliable, secure SMS, MMS, RCS, WhatsApp and Viber messages to your customers today. Choose one or all five channels to broaden your programmable messaging strategy and expand your audience.

Unmatched Global Coverage
Reach more customers with 120+ optimized points-of-presence and 700+ direct-to-carrier routes​.
Exceptional Reliability
Optimal performance with higher successful delivery rates than any leading competitor.
5-Star Customer Service
Premium customer support to strengthen communication, reduce costs, and ensure seamless customer interaction.

SMS Messaging

When it comes to reaching your customers, SMS is still one of the most reliable channels, with more than 18 billion SMS messages sent every day. TeleSign makes it easy to send and receive SMS text messages, alerts, updates, reminders, notifications, and one-time passcodes to your customers in real time.

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The next generation of SMS is here. With RCS messages you can send rich mobile app-like messaging including images, gifs, files, videos, and audio directly to Android devices. RCS mobile messaging supercharges mobile marketing, notifications, and branded communications to your customers to improve engagement and conversion.

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Tap into 2 billion users. Sending a WhatsApp message to you customers couldn’t be easier or more secure with our messaging API. Interact with customers easily with message templates and rich media for enhanced customer care.

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Deliver rich, personalized experiences, guarantee the delivery of important alerts, reminders, and notifications, and offer conversational communication with Viber for Business. Reach and engage the 1.1 billion people who user Viber every day.

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Trusted by Top Companies

“Working with TeleSign allowed us to quickly and effectively integrate SMS text messaging into our application.”

Rob Bauman

Director, Partner Engagement & Operations

"We needed a partner that could scale to support our ever-expanding global footprint. TeleSign delivered the scale we were looking for."

Chuck Mortimore

VP, Product Management, Identity, and Security

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Ready to deliver
a trusted experience?

We’re ready to help you:
✓ Streamline & secure onboarding
✓ Reach your customers on the channels they trust
✓ Safeguard your customers’ accounts
✓ Establish comprehensive fraud protection