How to send SMS through SMPP from Msty Claw
This guide explains how to connect Msty Claw to Ozeki SMS Gateway's built in SMS MCP server, enabling the AI assistant to send and receive SMS messages through your own on-premises SMS gateway. You will learn how to install Ozeki SMS Gateway, create an MCP user account, generate an API key, register the MCP endpoint in Msty Claw, and verify the setup by sending a test message.
Solution: How to send SMS from Msty Claw
Msty Claw connects to the SMPP SMS MCP Server through the MCP protocol, where Msty Claw acts as the MCP client and Ozeki SMS Gateway acts as the MCP server. Ozeki SMS Gateway is installed on your local machine or server and connects to the SMS service provider over the internet using an SMPP client connection. When an SMS is sent, it first travels from Msty Claw to the Ozeki SMS Gateway as an MCP tool call, and the gateway forwards it to the SMS service provider over SMPP, which delivers it to the recipient's mobile phone.
What is Msty Claw?
Msty Claw is an AI chat application that allows you to interact with local and cloud-based large language models through a clean desktop interface. It supports MCP tool servers, enabling it to be extended with external capabilities such as SMS messaging, database access, and more.
What is an SMPP SMS MCP Server?
An SMPP SMS MCP Server is a standardized software bridge that uses the Model Context Protocol to connect AI assistants (like Claude) to an SMS gateway system such as Ozeki SMS Gateway, which in turn delivers messages to the mobile network over an SMPP client connection. It exposes tools like "send_message" or "list_incomings" that an AI can autonomously call to perform real-world texting tasks without custom coding. This allows users to simply ask an AI to "send John a reminder text" and have the AI securely execute the action through the server. The SMS MCP Server built into Ozeki SMS Gateway also makes receiving SMS messages possible.
Download Ozeki SMS Gateway
To use this solution you need to install the SMS Gateway on your system.
Download the software: SMS Gateway
https://ozeki-sms-gateway.com/p_727-download-sms-gateway.html
Steps to follow
You will need Msty Claw installed on your system. If you have not set it up yet, follow our Msty Claw installation guide.
- Install Ozeki SMS Gateway
- Setup the SMPP SMS connection
- Create an MCP user account
- Msty Claw SMS MCP Server Config
- Add the SMS MCP Server config to Msty Claw
- Send a test SMS
- Check the SMS in the SMS Gateway logs
Install Ozeki SMS Gateway
For a full tutorial on installing Ozeki SMS Gateway, check out our How to install Ozeki SMS Gateway on Windows guide.
Before you can use the SMS MCP Server, you need to install Ozeki SMS Gateway on your Windows machine or server. Download the installer zip file from the website, extract it, and run the executable to complete the installation. Once installed, the gateway will start automatically and its web-based management interface will be accessible from your browser.
Setup the SMPP SMS connection
For a full tutorial on setting up an SMPP Client connection, check out our SMPP Client Connection guide.
Before creating the MCP user, you need to connect Ozeki SMS Gateway to the mobile network by setting up an SMPP client. In the Connections panel, select Add new connection, and install a new SMPP client connection. Enter the host, port, and credentials provided by your SMS service provider, then save and activate the connection to bring the gateway online.
Create an MCP user account
For a full tutorial on creating an MCP User, check out our Create an MCP User guide.
Click Add new user/application, and select the MCP user type from the list. Enter a username and password for the account, then open the Advanced tab to generate an API key. Copy this key and store it in a safe location, as you will need it in the next steps.
Msty Claw MCP server configuration
# Settings -> Tool Servers -> Add Server
# Replace {address} with your Ozeki Android SMS Gateway address
Name: Ozeki Android SMS MCP
Transport: Remote URL
URL: http://{address}:9531/mcp
# Replace your-bearer-token with your token
Headers:
Authorization: Bearer your-bearer-token
Example prompt
Send an SMS to +36301234567, the message should be "Hello from Msty Claw".
Add the SMS MCP Server config to Msty Claw
The following video shows how to add the Ozeki SMPP SMS MCP Server to Msty Claw step-by-step. The video covers opening the settings menu, adding the tool server, configuring the connection details, and verifying the available tools.
To begin the configuration, launch the Msty Claw application on your system and locate the Settings menu, which is accessible from the main interface. Navigate into the Settings to find the Tools section, where external tool server integrations can be managed. This is the entry point for adding the Ozeki SMPP SMS MCP Server as a new tool server that Msty Claw will use for SMS capabilities.
Inside the Tools section of the Settings, locate the Tool Servers area which initially shows "No servers yet" with an "Add Server" button highlighted by a red arrow. Click the "Add Server" button to open the dialog where you can register the Ozeki SMS Gateway as a new external tool server. This action prepares Msty Claw to accept the connection details for the MCP server you are about to configure.
A "New Server" dialog appears, where you must fill in the Name field with "Ozeki SMS Gateway"
and set the Transport type to "Remote URL". Enter the MCP server URL (e.g., http://192.168.0.126:9529/mcp)
in the URL field, and provide the Bearer API key in the Headers field using the Authorization: Bearer
After saving the server details, Msty Claw initiates a connection to the configured Ozeki SMPP SMS MCP Server endpoint using the provided URL and API key. The application attempts to reach the MCP server over HTTP and authenticate using the Bearer token supplied in the headers. Once the connection is established successfully, the server becomes active and its tools become available for use within Msty Claw workflows.
To verify the integration is working, type a prompt such as "List available tools from the MCP server" directly into the Msty Claw chat input field and submit it. Msty Claw will query the connected Ozeki SMPP SMS MCP Server and return a list of the tools it exposes, confirming the connection is live.
The response from Msty Claw displays the connected server named "Ozeki SMS Gateway" with its transport (HTTP) and status shown as "Connected". Two tools are listed under Available tools: send_sms, which sends an SMS message to a specified phone number (max 160 characters), and list_incomings, which lists incoming SMS messages.
Send a test SMS
The following video shows how to send an SMS message from Msty Claw using the Ozeki SMPP SMS MCP server step-by-step.
In Msty Claw, open a conversation with your configured AI model. In the chat input box, type your SMS request in plain language and press the Send button or Enter. The AI model will interpret the request and select the appropriate MCP tool to fulfill it (Figure 7).
Send an SMS to +36301234567, the message should be "Message from Msty".
Once the tool has been executed, Msty Claw will display the result. A successful response confirms that the message was submitted to the gateway and handed off for delivery (Figure 8).
Check the SMS in the SMS Gateway logs
The following video shows how to check the SMS in the logs in Ozeki SMS Gateway step-by-step.
Open Ozeki SMS Gateway in your browser and navigate to the MCP user details page by clicking on the MCP user entry in the Users and applications panel. In the user's event log, you should see an entry for the outgoing message, including the recipient number and message text, confirming that it was successfully processed by the gateway (Figure 9).
Final thoughts
In this guide, you have learned how to connect Msty Claw to Ozeki SMS Gateway's built-in SMS MCP Server and use it to send SMS messages directly from the chat interface. By installing the gateway, setting up an SMPP connection to the mobile network, creating an MCP user account, and registering the MCP endpoint in Msty Claw, you now have a fully functional on-premises SMS integration that your locally hosted AI model can use to communicate with any mobile phone.