How to use the Android MCP SMS Server in Cline

This guide explains how to connect the Ozeki Android SMS Gateway MCP server to Cline, enabling the AI assistant to send SMS messages directly from your Android phone. By following this tutorial, you will learn how to install the Ozeki Android SMS Gateway app, enable its built-in MCP server, register the MCP endpoint in Cline, and verify that everything is working by sending a test message.

Solution: How to send SMS from Cline

Cline is connected to the Ozeki Android SMS MCP Server through the MCP protocol, where Cline is the MCP client and the Android phone is the MCP server. The Android phone is connected to the SMS service provider through a wireless mobile network connection. When an SMS is sent, it first travels from Cline to the Android phone through the MCP protocol, and the Android phone forwards it to the SMS service provider, which delivers it to the recipient's mobile phone.

What is Cline?

Cline is an AI-powered coding assistant extension for Visual Studio Code that helps developers write code faster and more efficiently. It provides intelligent code completion, generation, and refactoring suggestions powered by large language models.

What is an Android SMS MCP Server?

An Android SMS MCP Server is a Model Context Protocol server that runs directly on an Android smartphone and exposes SMS functionality — such as sending text messages and querying SIM subscriptions — as structured tools that any MCP-compatible AI client can call. Once installed and configured, the AI client can send real SMS messages through the phone's SIM card to any phone number, with a single tool call.

Download Ozeki Android SMS Gateway

To use this solution you need to install the Android app on your Android phone.

Download the android app: Android SMS Gateway

https://android-sms-gateway.com/p_51-download-android-sms-gateway.html

Steps to follow

You will need Cline installed in Visual Studio Code on your system. If you have not set it up yet, follow our Cline installation guide.

1. Install Ozeki Android SMS Gateway
2. Enable MCP SMS Server
3. Cline SMS MCP Server Config
4. Add the SMS MCP Server config to Cline
5. Send a test SMS
6. Check the SMS in the SMS Gateway logs

Step 1 - Install Ozeki Android SMS Gateway

For a full tutorial on installing the Ozeki Android SMS Gateway, check out our How to install Android SMS Client and Enable Ozeki SMS Client permissions guides.

Before you can use the MCP SMS Server, you need to install the Ozeki SMS Client on your Android device. The app will serve as the local SMS gateway that Cline connects to over your Wi-Fi network. Make sure both devices are on the same local network, as this is required for the HTTP connection to work.

Step 2 - Enable MCP SMS Server

For a full tutorial on enabling the MCP server in the Android app, check out our Android MCP SMS Server configuration guide.

Open the Ozeki SMS Client app on your Android device and tap the MCP tab in the bottom navigation bar. Tap the toggle switch to start the MCP server and grant any permission requests that appear, including access to SMS messages. The toggle will switch from "Stopped" to "Running" and the API endpoint URL will appear below. Copy this URL, as you will need it when configuring Cline in the next step.

Step 3 - Cline SMS MCP Server Config

# Navigate to Cline -> MCP Servers -> Configure
# Replace {address} with your Ozeki Android SMS Gateway address
{
  "mcpServers": {
    "ozeki-android-sms-mcp": {
      "command": "uvx",
      "args": [
        "mcp-proxy",
        "--transport", "streamablehttp",
        "http://{address}:9531/mcp"
      ],
      "timeout": 120
    }
  }
}

Example prompt

Send an SMS to +36301234567, the message should be "Hello from Cline".

Step 4 - Add the SMS MCP Server config to Cline

The following video shows how to add the Android SMS MCP server to Cline Code step-by-step.

Open Visual Studio Code and click the Cline icon in the activity bar to open the Cline panel. Navigate to MCP Servers using the toolbar at the top of the panel (Figure 1).

Select the Configure tab, then click the Configure MCP Servers button to open the configuration file. This will open the cline_mcp_settings.json file in the editor, where all MCP server entries are registered (Figure 2).

Add the Ozeki Android SMS MCP server entry inside the mcpServers block as shown below. Replace {address} with the IP shown in the Ozeki SMS Client app on your Android device. The entry uses uvx and mcp-proxy to bridge the streamable HTTP transport used by the Android gateway (Figure 3).

{
  "mcpServers": {
    "ozeki-android-sms-mcp": {
      "command": "uvx",
      "args": [
        "mcp-proxy",
        "--transport", "streamablehttp",
        "http://{address}:9531/mcp"
      ],
      "timeout": 120
    }
  }
}

Save the configuration file. Cline will automatically detect the changes and attempt to connect to the newly registered MCP server (Figure 4).

Step 5 - Send a test SMS

The following video shows how to send an SMS message from Cline using the Ozeki Android SMS MCP server step-by-step.

The MCP Servers list will show ozeki-android-sms-mcp as a connected server, confirming that Cline has successfully reached the Android gateway (Figure 5).

Return to the Cline chat and type a plain language instruction in the Cline chat prompt asking the AI to send an SMS to a specific phone number. Cline will call the Send SMS tool and process the request (Figure 6).

Send an SMS to +36301234567, the message should be "Hello from Cline".

You will see the result of the Send SMS tool call in the chat panel. A successful response confirms that the message has been passed to the Android gateway and queued for delivery (Figure 7).

Step 6 - Check the SMS in the SMS Gateway logs

The following video shows how to check the gateway logs in the Ozeki SMS Client app step-by-step. This allows you to confirm that the SMS request from Cline was received and processed successfully by the Android gateway.

Open the Ozeki SMS Client app on your Android device and navigate to the Settings tab in the bottom navigation bar to access the application settings. Tap the Log option to view the request and response history (Figure 8).

Select the MCP tab to show only MCP-related activity. Here you will see the incoming tool call requests from Cline and the responses sent back, allowing you to confirm that the SMS was dispatched successfully (Figure 9).

Summary

You have successfully configured the Ozeki Android SMS Gateway MCP server with Cline. Your Android device is now acting as a local SMS gateway that it can communicate with over your local network, enabling text messages to be sent to any phone number using plain language prompts. All SMS traffic is routed through your Android device's mobile connection, with no cloud messaging API or third-party service required.