# Cloud SQL for PostgreSQL Admin MCP Server
The Cloud SQL for PostgreSQL Model Context Protocol (MCP) Server gives AI-powered development tools the ability to work with your Google Cloud SQL for PostgreSQL databases. It supports connecting to instances, exploring schemas, running queries, and analyzing performance.
## Features
An editor configured to use the Cloud SQL for PostgreSQL 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 PostgreSQL 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.
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 PostgreSQL capabilities to your AI assistant. You can:
* "Create a new Cloud SQL for Postgres 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 PostgreSQL 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-postgres-admin": {
"command": "npx",
"args": ["-y", "@toolbox-sdk/server", "--prebuilt", "cloud-sql-postgres-admin", "--stdio"]
}
}
}
```
## Documentation
For more information, visit the [Cloud SQL for PostgreSQL documentation](https://cloud.google.com/sql/docs/postgres).