Send and receive text messages globally using SMS APIs

Join thousands of developers who trust the company that 20 years ago created the world’s first SMS API.

Seamless integration and communication

Intelligently connect with your customers, world-wide. We provide you with the messaging solutions that you require. Enabling you to get your messages to the right customers, at the right time.



A cloud-hosted, user-friendly portal and the wizard-driven code generation makes integration into your existing systems easy.



An SMS platform that scales with you, allowing you to send a high volume of messages delivered reliably and on time.



Ensure that conversations between your business and customers remain 100% private with default end-to-end encryption.

20 years of B2B experience

15 000+ clients

10+ billion annual messages sent

1000+ mobile networks

220 territories


Reach and engage with 85% of the world’s population in real-time

Global Reach

Our infrastructure covers over 220 territories and 1 000+ networks, reaching 6 billion mobile phone users.

Intelligent Routing

We select the highest quality routes available at the time of sending.

Two-Way Text Messaging

We offer personalized short codes  or  long numbers  that will enable you to engage with your customers via SMS.

10-Digit Long Codes (10DLC) for A2P messaging in the U.S.

Use a 10DLC phone number for compliant and cost-effective messaging at scale.Learn more about 10DLC.

SMS API is built with intuitive capabilities.

Platform built with intuitive capabilities

  • Single account interface for multiple business users.

  • You can access our cloud-hosted, web-based interface from anywhere​.

  • In the new Sandbox environment, you have unlimited free  testing.

  • More traffic routing and two-way  setup options.

  • Assign role-based access control​.

  • Intelligent reporting dashboards.​

  • Operate your account in a choice of currencies.

Automate communication

  • 1

    Register a free account and log in

  • 2

    Activate the SMS channel and add a new setup

  • 3

    Set up a basic HTTP API or our REST-based One API

  • 4

    Test and publish the integration

  • 5

    Send and track your SMS messages

Choose the best tool for the message

Send and receive SMSes for quick customer support, communications, promotional marketing, or two-factor authentication notifications.

Clickatell’s One API

Automate engagement on an ever-expanding list of channels – SMS, WhatsApp, etc. – without the overhead of programming individual channels.

Messaging-Specific APIs

SMS-enable any application, website or system and facilitate international one- or two-way messaging with an easy one-step integration process.

Campaign Manager

Create one- or two-way bulk SMS campaigns within minutes, with no coding or developers required, a free application and you only pay for the messages you send.
Find out more

Clickatell’s SMS Gateway

For secure, reliable, and fast bulk SMS messaging. Our hosted specialized SMS Gateway lets you cost-effectively connect to your customers at scale.

Find out more

Flexible SMS Pricing Options

Our SMS price estimator will assist you to calculate your SMS distribution based on the destination and type of message you’re sending.

With 20 years of experience as a global SMS provider, Clickatell’s communication and engagement capabilities have been assisting business to stay in touch with their clients

"Karri is a global first and a brilliant solution that eliminates the inconvenience of school payments. Karri relies on its ability to communicate with parents. “Because SMS messages are delivered directly to their mobile phones, parents are able to navigate the download process and installation process with ease, and with a far higher success rate.” Clickatell’s APIs quickly and easily allowed us to “fire off an SMS from anywhere in our tech stack, making it very easy to develop it into applications."

Louis Buys, Founder

"Alert-a-buddy is an automated buddy system that relies on SMS to help reduce workload, and provide a vital and robust employee safety net for lone workers around the clock, 365 days a year. As is the case for all SMS messaging customers, reliability is key. Clickatell’s “SMS messaging provides a quick and easy way for users to communicate with our system. Everyone is so familiar with SMS that it’s often the easiest way for them to communicate."

Alanna Lawrie-Fussey, Managing Director

"Bands For Hire Ltd is a live music agency operating in the UK, providing musical bands for any occasion. They use SMS messaging to effectively communicate and inform clients that an email has been sent, prompting them to check their emails sooner. A simple SMS message takes care of the problem. Bands for Hire chose to use Clickatell for its “easy-to-use API with full and clear documentation and numerous code samples to get started."

Adam Mezzatesta, Founder
bands for hire

Businesses who trust Clickatell to stay connected

As easy as Hi. Buy. Bye.