MCP server

AlloyDB MCP server

AlloyDB has an official MCP server (2, in fact): One server for Postgres, MySQL, SQL Server, BigQuery, AlloyDB, Spanner and more, with tools you define in YAML. Below are all 2 servers with the setup for 13 clients: Claude Code, Claude Desktop, ChatGPT, Cursor, VS Code, Codex, Gemini CLI and more. Checked 2026-10-24 against each project's own repo, docs and the official MCP Registry.

MCP Toolbox for Databases

Official · GoogleSee docs

One server for Postgres, MySQL, SQL Server, BigQuery, AlloyDB, Spanner and more, with tools you define in YAML.

★ 17kpushed 2026-10-23Apache-2.0

No one-line setup: it needs a build step, an app plugin or account details. Follow the README.

AlloyDB

Official · GoogleRemote

Google-hosted server to manage AlloyDB for PostgreSQL clusters and run queries.

https://alloydb.googleapis.com/mcp

Run in a terminal, then /mcp inside Claude Code to sign in. Add --scope project to share it via .mcp.json. docs

claude mcp add --transport http alloydb https://alloydb.googleapis.com/mcp

Which one to pick

  • Start with MCP Toolbox for Databases: it's maintained by Google and follows its API.
  • A remote server (AlloyDB) needs no install and signs you in with OAuth. It's also the only kind ChatGPT and claude.ai can use.

FAQ

Is there an official AlloyDB MCP server?+

Yes: MCP Toolbox for Databases and AlloyDB, maintained by Google.

How do I connect AlloyDB to Claude?+

In Claude Code, run the claude mcp add command shown above. In Claude Desktop, add the server to claude_desktop_config.json (Settings > Developer > Edit Config) and restart the app.

How do I use the AlloyDB MCP server in Cursor or VS Code?+

Open the Cursor or VS Code tab on the server above: it has the exact mcp.json entry. The same server also works in Claude Code, Claude Desktop / claude.ai, ChatGPT, Cursor, VS Code and Codex.

Can I use the AlloyDB MCP server in ChatGPT?+

ChatGPT connects to remote MCP servers only. AlloyDB has a hosted URL: at chatgpt.com/plugins choose + > Add custom MCP server, paste the URL and create it as a plugin.

Is it safe to give an AI agent access to AlloyDB?+

Start with the official server, a read-only or test account and approval prompts on for anything that writes. Content the agent reads from AlloyDB (tickets, messages, pages) can carry prompt-injection instructions, so don't auto-approve actions.

All database MCP servers · Agent skills · How MCP setup works in each client

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