SMS APIs, SMS Gateway, Model Context Protocol (MCP)
Integrate any application through our free APIs.
We have a range of secure, flexible APIs offering your business a platform to SMS-enable any application, website or system.
Access to APIs and documentation is included in your account at no extra charge. We also offer free support if you need any assistance with implementation.
For detailed information and guides click here to visit our dedicated API documentation site.
Create an SMS Express account.
We offer free test credits to all new accounts after verification. If you need extra test credits please don't hesitate to ask.
Connect your AI assistant with MCP.
If you build with AI tools like Claude Desktop, Cursor or Windsurf, you can connect them straight to our messaging platform using the Model Context Protocol (MCP). Your AI can explore the API, write working code and send live messages without leaving your editor.
Once connected, your AI assistant can:
- Look up API endpoints and parameters on the spot.
- Generate ready-to-run code in curl, JavaScript, Python and more.
- Send test and live SMS straight from a chat prompt.
- Build and troubleshoot integrations far faster.
It runs against your live SMS Express account, so real sends are billable, and your messages still need a verified sender ID to meet the ACMA register rules. New accounts get free test credits, so you can trial it safely before going live.
Not sure where to start? Our local support team can help you get connected.
Explore More Ways to Connect
However you like to work, there's a way to plug SMS Express in.