SMS APIs with global reach.

Enterprises trust our SMS APIs to deliver billions of messages worldwide, backed by high-performance infrastructure and direct carrier connections.

Start quickly, scale easily, engage individually.
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    One and two-way SMS

    Send one-way alerts, notifications, and reminders at the perfect moment. When you need a response, use two-way SMS and AI agents to create engaging conversations, letting customers reply with a few taps of the screen.

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    Global reach

    As a Tier 1 network with direct carrier connectivity and relationships across the US, UK, and the rest of the world, we ensure that your messages are delivered to customers no matter where they are.

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    Adaptable scalability

    Don’t worry about underlying infrastructure, we take care of that. Large volumes or bursts of traffic are easily managed with our globally distributed platform. Without jeopardizing connection quality, send mass text messages at a competitive rate.

  • SMS for the always-on, global enterprise.
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    On-demand support

    We pride ourselves on offering around the clock (24x7) support with dedicated account management, API documentation, and developer resources. Implementation services are available on demand.

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    High-performance infrastructure

    We champion reliability, offering a high-availability cloud deployment across multiple geographic regions, automated monitoring, and zero-downtime upgrades.

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    Explore new channels

    Start with SMS and then expand to new channels like MMS, RCS, and WhatsApp. Through our APIs, it's quick and easy to add new channels to your communication mix.

  • How Centrica transformed its SMS customer experience.

    With over 9 million customers and high inbound call volumes causing long wait times and rising service costs, Centrica used Webex Connect to improve customer experience while reducing costs.

    Enrich your customer experience with tailored messaging.
    Appointment reminders

    Send appointment reminders to reduce the risk of no-shows.

    SMS reminders
    Payment notifications

    Keep customers informed about their finances with proactive notifications.

    SMS notifications
    Promotional offers

    Promote new products or services with our programmable SMS API.

    Fraud protection

    Maintain customer trust with real-time notifications to validate transactions.

    Easily embed our SMS APIs with a few lines of code.

    Add SMS to your customer journeys using our SMPP or REST APIs, backed by direct carrier infrastructure. Explore the Developer Center for docs, sample code, or try it instantly in our sandbox.

    Got questions about SMS? We've got you covered.

    Have more questions about SMS—like geographic regulations or migration? Contact us.

    Contact us
    What is an SMS API?

    An SMS API is a software interface that enables code to send short messages from one platform to another via an SMS Gateway. A business can use an SMS API to send or receive messages from any website or application. The most powerful SMS APIs connect together the fragmented infrastructure of multiple telecommunications carrier networks to send messages around the world.

    How do businesses use SMS APIs?

    Businesses use SMS APIs for two-way communication, one-time passwords (OTPs), promotional offers, appointment management, tracking updates, chatbots, two-factor authentication (2FA), and much more. SMS APIs enable businesses to send thousands of SMS messages in seconds. Using an SMS API allows for efficient, quick, and secure communications that improve customer experience and support.

    How can my business start sending bulk SMS messages?

    Our APIs are easy to implement so you can send bulk SMS quickly and get full support from our technical teams every step of the way. Speak to us today so we can help get you started, or find out more about our bulk SMS services.

    How does an SMS aggregator work?

    An SMS aggregator acts as an intermediary between businesses that want to interact with end users via SMS and the carriers that own the networks. An aggregator has multiple agreements with telecommunications carriers around the world to provide a unified connection for sending and receiving data in and out of a carrier’s short message service center (SMSC).

    What is an SMS Gateway API?

    An SMS Gateway API provides an interface for sending and receiving SMS text messages to and from an SMS-capable device over telecommunications carrier networks. The SMS Gateway translates the message sent, routes the message via the most relevant network, and makes it compatible for delivery.

    Learn more about SMS.
    SMS marketing guide
    Learn how to create SMS marketing campaigns that engage, inform, reassure, and delight your customers.
    Global SMS
    Find out how to identify the right SMS provider for global SMS success.
    Get started with SMS notifications
    We share best practices and some handy examples to help you start notifying your audience.
    Ready to get started?