# Cloud SQL for SQL Server Admin MCP Server

The Cloud SQL for SQL Server Model Context Protocol (MCP) Server gives AI-powered development tools the ability to work with your Google Cloud SQL for SQL Server databases. It supports connecting to instances, exploring schemas, and running queries.

## Features

An editor configured to use the Cloud SQL for SQL Server MCP server can use its AI capabilities to help you:

- **Provision & Manage Infrastructure** - Create and manage Cloud SQL instances and users

To connect to the database to explore and query data, search the MCP store for the Cloud SQL for SQL Server MCP Server.

## Prerequisites

*   [Node.js](https://nodejs.org/) installed.
*   A Google Cloud project with the **Cloud SQL Admin API** enabled.
*   Ensure [Application Default Credentials](https://cloud.google.com/docs/authentication/gcloud) are available in your environment.
*   IAM Permissions:
  * Cloud SQL Viewer (`roles/cloudsql.viewer`)
  * Cloud SQL Admin (`roles/cloudsql.admin`)

## Install & Configuration

In the Antigravity MCP Store, click the "Install" button.

> [!NOTE]
> On first use, the installation process automatically downloads and uses
> [MCP Toolbox](https://www.npmjs.com/package/@toolbox-sdk/server)
> `>=0.26.0`. To update MCP Toolbox, use:
> ```npm i -g @toolbox-sdk/server@latest```
> To always run the latest version, update the MCP server configuration to use:
> ```npx -y @toolbox-sdk/server@latest --prebuilt cloud-sql-mssql-admin```.

You'll now be able to see all enabled tools in the "Tools" tab.

> [!NOTE]
> If you encounter issues with Windows Defender blocking the execution, you may need to configure an allowlist. See [Configure exclusions for Microsoft Defender Antivirus](https://learn.microsoft.com/en-us/microsoft-365/security/defender-endpoint/configure-exclusions-microsoft-defender-antivirus?view=o365-worldwide) for more details.

## Usage

Once configured, the MCP server will automatically provide Cloud SQL for SQL Server capabilities to your AI assistant. You can:

  * "Create a new Cloud SQL for SQL Server instance named 'e-commerce-prod' in the 'my-gcp-project' project."
  * "Create a new user named 'analyst' with read access to all tables."

## Server Capabilities

The Cloud SQL for SQL Server MCP server provides the following tools:

| Tool Name            | Description                                            |
|:---------------------|:-------------------------------------------------------|
| `create_instance`    | Create an instance (PRIMARY, READ-POOL, or SECONDARY). |
| `create_user`        | Create BUILT-IN or IAM-based users for an instance.    |
| `get_instance`       | Get details about an instance.                         |
| `get_user`           | Get details about a user in an instance.               |
| `list_instances`     | List instances in a given project and location.        |
| `list_users`         | List users in a given project and location.            |
| `wait_for_operation` | Poll the operations API until the operation is done.   |


## Custom MCP Server Configuration

Add the following configuration to your MCP client (e.g., `settings.json` for Gemini CLI, `mcp_config.json` for Antigravity):

```json
{
  "mcpServers": {
    "cloud-sql-sqlserver-admin": {
      "command": "npx",
      "args": ["-y", "@toolbox-sdk/server", "--prebuilt", "cloud-sql-mssql-admin", "--stdio"]
    }
  }
}
```

## Documentation

For more information, visit the [Cloud SQL for SQL Server documentation](https://cloud.google.com/sql/docs/sqlserver).
