Get Started with Google Antigravity

This guide walks you through configuring the Uno Platform MCPs for Google Antigravity so you can use the agent with the Uno Dev Server.

Check your environment

Open a command-line prompt, Windows Terminal if you have it installed, or else Command Prompt or Windows Powershell from the Start menu.
Setup uno.check by installing or updating the tool with:
```
dotnet tool update -g uno.check
```
Run the tool from the command prompt with the following command:
```
uno-check
```
You can optionally add the --target desktop --target web (or ios, android, windows) parameters based on your intended development platforms.
Follow the instructions indicated by the tool.

You can find additional information about uno-check here.

Open a Terminal.
Setup uno.check by installing or updating the tool with:
```
dotnet tool update -g uno.check
```
Run the tool from the command prompt with the following command:
```
uno-check
```
If the above command fails, use the following:
```
~/.dotnet/tools/uno-check
```
You can optionally add the --target desktop --target web (or ios, android, windows) parameters based on your intended target platforms.
Follow the instructions indicated by the tool

You can find additional information about uno-check here.

Open a Terminal
If dotnet --version returns command not found:
- Follow the official directions for installing .NET.
  
  Important
  
  If you are using Ubuntu 24.04 or earlier, use the Microsoft feed to install .NET. On later versions, you may install .NET directly from Ubuntu's official feed. In any case, you may refer to the directions from Microsoft on installing .NET on Ubuntu and make sure to select your Ubuntu version.
Then, setup uno.check by installing or updating the tool with:
```
dotnet tool update -g uno.check
```
Run the tool from the command prompt with the following command:
```
uno-check
```
If the above command fails, use the following:
```
~/.dotnet/tools/uno-check
```
You can optionally add the --target desktop --target web (or ios, android, windows) parameters based on your intended development platforms.
Follow the instructions indicated by the tool

You can find additional information about uno-check here.

Install Google Antigravity by following Google's official instructions for your operating system.
Configure Antigravity MCPs:
1. Open the MCP store via the "..." dropdown at the top of the editor's agent panel.
2. Click on "Manage MCP Servers"
3. Click on "View raw config"
4. Modify the mcp_config.json with your custom MCP server configuration:
```
{
    "mcpServers": {
        "uno": {
            "url": "https://mcp.platform.uno/v1"
        },
        "uno-app": {
            "command": "dotnet",
            "args": [
                "dnx",
                "-y",
                "uno.devserver",
                "--mcp-app",
                "--force-roots-fallback"
            ]
        }
    }
}
```
Note

--force-roots-fallback exposes the uno_app_set_roots tool so Antigravity, which does not yet provide MCP roots, can initialize.