SMS API

Integrate SMS API into
your software

Send SMS with easy-to-integrate messaging APIs. Get your unique SMS API key and reach customers worldwide through your existing software and applications.

Easy to get started

Connect any software, business system or application to our messaging APIs to send and receive text messages – always stable and secure delivery. 

  • Multiple programming languages (JAVA, PHP, and more)
  • Complete documentation with sample code for developers
  • REST API with JSON, Web Services (SOAP / XML), Batch API, SMPP, SMTP, and HTTP GET
Man receives message when walking dark

SMS API integrations

Our APIs are designed to make integration as seamless and straightforward as possible, so you can start communicating with your customers or employees in no time. Integrate APIs in applications and systems like:

  • Booking systems
  • CRM
  • Marketing & campaign tools
  • HR systems
  • ERP systems
  • Communication systems
  • And more..
SMS API integrations

Our flexible messaging APIs

SMS API (REST/JSON)

Send and receive SMS or RCS messages. Small volumes. Text only. Simple & easy to use.

SMS API (SOAP/XML)

Send and receive SMS messages. Batch messaging. For complex needs. Text only. Flexible & powerful.

SMS Batch API (REST/JSON)

Send large volumes of SMS (batch). Text only. Efficient for large sendouts.

SMS Batch API (SOAP/XML)

Send large volumes of SMS (batch). Text only. Efficient for large sendouts.

Rich channel API

Send and receive rich content messages via channels like RCS and WhatsApp. Batch messaging. High engagement & interactivity.

Messaging Workflow Dispatch API

Automate complex SMS processes.

Webhook & Callback API

Real-time SMS delivery reports. When in need of immediate feedback. Good for efficient resource allocation.

Address book API

Centrally manage address books and tags. Requires existing contact management database. Integration to another system.

Email to SMS Provisioning API

Regulate and manage Email2SMS conversions. When in need for security and control. Requires Azure or other hierarchical system.

Authentication API

Handle API Keys and OAuth 2.0 Bearer Tokens.

Connect in your audience's preferred channel

  • SMS icon

    SMS

    Reach anyone, anytime, anywhere. Mobile phones, our constant companions, have made SMS a preferred communication channel for businesses worldwide.

    Explore channel
  • RCS icon

    RCS

    Elevate your business communication with the next generation of SMS. RCS goes beyond text, offering a dynamic and engaging way to connect. 

    Explore channel
  • Whatsapp For Business icon

    WhatsApp

    Revolutionise customer engagement with WhatsApp for business. Leverage feature-rich messaging, personalised communication and customisable profiles.

    Explore channel
  • Facebook Messenger icon

    Facebook Messenger

    Facebook Messenger offers real-time communication, automated responses, and seamless transactions – enhancing customer interactions and your business processes.

    Explore channel
  • Voice icon

    Voice

    Experience the power of Text-to-Speech (TTS) and Speech-to-Text (STT) technologies – seamlessly converting messages into written or spoken words. Ideal for 1- & 2-way phone calls.

    Contact us
  • Cloudfax icon

    CloudFax

    CloudFax offers seamless digital faxing, secure document transmission, and efficient communication. Enhance your collaboration and document workflow.

    Contact us
  • All channels icon

    All rich channels

    Explore additional rich channels to find and learn about the perfect messaging channel for your audience.

    Explore all channels

We're here to help

LEKAB - Integrations - Marine blue
Simple integration

Integrating SMS APIs and other messaging channel APIs into a system and/or application is easy. Choose between ready-made and custom-made APIs and get started.

FA - Code - Marine blue
Custom development

With our smart messaging solutions for mobile communication, we help you from a need to a solution. Request development for automated workflows, one-off integrations and more tailored to your specific needs.

Lekab-support - Marine blue
Local customer support

Our dedicated team is eager to give expert guidance. We operate locally in the Nordics, ensuring quick and personalised support to get started.

How do I get started?

To access our APIs, you must first create an account to our web portal. It takes less than a minute. This gives you access to the API keys that you use to integrate the APIs.

Talk to one of our business
messaging experts

Fill in the form, and we will get in touch as soon as possible or call us: +46 8-635 26 00.