Send and receive SMS messages.
Send and receive MMS messages.
Send using rich messaging channels like RCS and WhatsApp.
Send text-to-speech voice calls.
Send marketing and transactional emails.
Send and receive faxes.
Send letters and postcards via the cloud.
Use the ClickSend SMS Gateway API to
Automate Your Texts
ClickSend offer a powerful and flexible set of SMS APIs so you can programmatically send text messages. Our SMS gateway API facilitates SMS integrations, as it allows our clients to combine their current communication applications with our bulk SMS service, creating more leads and furthering your bottom line.
What is an SMS Gateway API?
An SMS API is a defined set of instructions which enable applications to send SMS via an SMS Gateway. An SMS Gateway API is used to add native bulk SMS capability to existing software and applications.
In other words, the ClickSend SMS Gateway API allows you to unlock SMS capability in your existing software platforms.
Get Started with the ClickSend SMS Gateway API
Download our sample SMS gateway API code now to confirm they are compatible with your system. Our SMS API can integrate into your existing code and make communicating with your customers easy.
Integrate with ClickSend today and begin SMS sending via our gateway API. Check out these resources to get started.
Or integrate now with our free API key
Why Choose ClickSend's SMS Gateway API?
Our popular REST gateway API offers an intelligent solution to sending bulk text messages over a range of different mobile networks. We also offer HTTP, FTP and SMPP APIs, as well as APIs for our voice, email, post and fax services. We make SMS integration effortless with our SMS gateway API and have a range of downloadable sample codes available so you can be assured of compatibility, see the link at the bottom of this page to download our sample SMS gateway API codes and ensure they’re compatible with your systems.
No Upfront Contracts or Fees
Never based on the size of your database - send SMS how you want and only pay for what you use.
Free 24/7 Support
Talk to us through live chat, phone, contact form or email. There’s always a human on the other end, ready to help.
We'll beat comparable quotes
Seen a better offer? Bring it to us so we can make a deal.
4800 messages per minute with long 1224 character limit and lightning fast delivery.
Global Coverage Direct Routes
Send SMS online to all countries globally. Guaranteed delivery with Tier 1 networks.
100% Uptime SLA Guarantee
We’re so confident in our reliability, we offer a 100% uptime SLA guarantee so you can be sure your message reaches when you need it to.
Why Businesses Love The ClickSend SMS Gateway API
Reliable SMS Gateway
Count on ClickSend to send your bulk SMS reliably. With our 100% Uptime SLA Guarantee and use of Tier 1 networks, you can send mass text messages with confidence.
Or for non-developers, send SMS from our user-friendly Online SMS Marketing dashboard.
Seamless API Integration
Integrate with ease with our comprehensive SDK library and API documentation. Built for developers, by developers, we know how to play nice with hundreds of other platforms. Sign up now to access your API key.
Got questions about the United Kingdoms best SMS API?
Our Support Team can't wait to get you set up. Contact us for full integration support.