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MCP Toolbox for Databases

Google's open-source gateway for connecting agents to 15+ database types.
Last updated July 18, 2026
DatabaseLocal · stdioGo16k
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Overview

MCP Toolbox for Databases (formerly Gen AI Toolbox) is Google's open-source MCP server for connecting AI agents to databases — PostgreSQL, MySQL, SQL Server, Spanner, AlloyDB, BigQuery, and more, all through one configurable server with connection pooling and predefined tools.

Use cases

Give one agent access to Postgres, BigQuery, and Spanner through a single server.
Define reusable, parameterized SQL tools in a YAML config instead of ad-hoc queries.
Run analytics queries against BigQuery from a chat interface.

Install

{
  "mcpServers": {
    "mcp-toolbox": {
      "command": "./toolbox",
      "args": [
        "--stdio"
      ]
    }
  }
}

FAQ

Over 15 sources including PostgreSQL, MySQL, SQL Server, Spanner, AlloyDB, BigQuery, Redis, and Neo4j — configured via a tools.yaml file.