Skip to main content
The MCP Gateway reads its server definitions from a simple JSON configuration file.

​
File Location

The configuration file is located at the following path based on your operating system:
  • Windows: %USERPROFILE%\.mcpassistant\mcp.json
  • UNIX/macOS: ~/.mcpassistant/mcp.json

​
mcp.json Structure

Add your local MCP servers to the mcpServers object. The Gateway will automatically discover these when you run the /start command. 
{
  "mcpServers": {
    "my-local-server": {
      "command": "node",
      "args": ["C:/path/to/server/index.js"]
    }
  }
}
Once configured, these servers will be tunneled to secure remote URLs that can be used by cloud clients like ChatGPT, Claude, and the MCP Assistant.