datacloud_spanner_toolbox

Connects to Google Cloud Spanner for querying and managing relational data with strong consistency and horizontal scalability. Requires Google Cloud credentials configured via environment variables.

GCP

SQL

database

infrastructure

Add to Your Project

Copy this JSON into your .mcp.json to enable this server

Add to your .mcp.json:

{
  "mcpServers": {
    "datacloud_spanner_toolbox": {
      "command": "npx",
      "args": [
        "-y",
        "@toolbox-sdk/server@>=1.1.0",
        "--prebuilt",
        "spanner",
        "--stdio",
        "--user-agent-metadata",
        "datacloud.claude"
      ],
      "env": {
        "SPANNER_DIALECT": "",
        "SPANNER_PROJECT": "${user_config.PROJECT_ID}",
        "SPANNER_DATABASE": "",
        "SPANNER_INSTANCE": ""
      }
    }
  }
}

Security Considerations

Review these signals before enabling this server

External connections

This server connects to external services. Review the URLs it accesses before enabling.

Details

Server configuration and connection parameters

Commandnpx

Access Levelwrite

Arguments

Command-line arguments passed to the server process

-y@toolbox-sdk/server@>=1.1.0--prebuiltspanner--stdio--user-agent-metadatadatacloud.claude

Environment Variables

Environment variables set when the server starts

SPANNER_DIALECT=

SPANNER_PROJECT=${user_config.PROJECT_ID}

SPANNER_DATABASE=

SPANNER_INSTANCE=

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LanguageTypeScript

Stars1

MaintenanceExcellent

Last CommitJun 3, 2026

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