How to send SMS from OpenClaw
This guide walks you through sending an SMS message directly from OpenClaw using the Ozeki SMS MCP server. By following this tutorial, you will learn how to launch OpenClaw, switch to the normal agent, ask it to send an SMS in plain language, and verify that the message was delivered through the gateway logs.
What is an MCP tool call?
An MCP (Model Context Protocol) tool call is how an AI model communicates with external systems. When the AI needs to perform an action or retrieve data, such as querying a database, calling an API, or reading a file, it sends a structured request to the appropriate MCP server, which processes it and returns the result.
Example prompt
Send an SMS to +36301111111, the message should be "Message from OpenClaw".
Steps to follow
We assume Ozeki SMS Gateway is already installed on your system, you have created an MCP user account with an API key, and you have already configured the Ozeki SMS MCP server in OpenClaw.
How to send SMS from OpenClaw video
The following video shows how to send an SMS message from OpenClaw using the Ozeki SMS MCP server step-by-step.
Step 1 - Launch OpenClaw
Open a terminal window and navigate to your working directory. Launch OpenClaw to start the application (Figure 1).
Step 2 - Switch to the normal agent
By default, OpenClaw may start with a restricted or coding-focused agent. To ensure full access to MCP tools, switch to the normal agent mode. This allows OpenClaw to utilize all available MCP servers, including the Ozeki SMS MCP server (Figure 2).
Step 3 - Use the Send SMS Tool
In the OpenClaw prompt, type your SMS request in plain language and press Enter. OpenClaw will interpret the request and select the appropriate MCP tool to fulfill it (Figure 3).
Send an SMS to +36301111111, the message should be "Message from OpenClaw".
Once the tool has been executed, OpenClaw will display the result returned by the Ozeki SMS MCP server. A successful response confirms that the message was submitted to the gateway and handed off for delivery (Figure 4).
Step 4 - Verify the transaction in logs
Open Ozeki SMS Gateway in your browser and navigate to the event log of your MCP user. You should see a log entry for the outgoing message, including the recipient number and message text, confirming that it was successfully processed by the gateway (Figure 5).
Conclusion
You have successfully sent an SMS message from OpenClaw using the Ozeki SMS MCP server. OpenClaw can now deliver SMS messages to any phone number simply by being asked to do so in plain language, making it easy to add mobile messaging to any OpenClaw workflow.