Hosting

Google-managed remote

Transport

Streamable HTTP

Endpoint

https://spanner.googleapis.com/mcp

Authentication

Google Cloud authentication: OAuth 2.0 using Application Default Credentials (ADC) in supported Google clients, or a client OAuth ID/secret or bearer token in compatible third-party clients. The principal needs mcp.tools.call plus the underlying product permissions; API key authentication is only available for services that explicitly support it.

Requirements

• A Google Cloud project and access to the target product/resource.
• Enable this MCP service and its underlying Google Cloud API as required by the product guide.
• An MCP client that supports Streamable HTTP.
• An identity with the MCP Tool User role (roles/mcp.toolUser) or equivalent mcp.tools.call permission, plus permissions for the underlying product operations.

Setup steps

1. Choose the correct global or regional endpoint for your data location; this catalog lists the documented endpoint.
2. In the Google Cloud project, enable the MCP service and the underlying product API if the product guide requires it.
3. Authenticate the client with Google Cloud ADC (simplest with Antigravity/Gemini CLI) or configure OAuth 2.0 credentials in a compatible client.
4. Grant the connecting identity roles/mcp.toolUser and only the product IAM roles needed for the intended operations.
5. Add spanner.googleapis.com to the client as a Streamable HTTP MCP server and complete sign-in.
6. Refresh the client tool list and check that the tools match the product reference; availability may depend on permissions and selected toolset.

Exact tool identifiers and descriptions extracted from the product-specific Google Cloud MCP reference Tools table. The live list can still vary by permissions or selected toolset.

• get_instance
  01
• list_instances
  02
• list_configs
  03
• get_config
  04
• create_instance
  05
• update_instance
  06
• create_database
  07
• get_database_ddl
  08
• list_databases
  09
• create_session
  10
• execute_sql
  11
• execute_sql_readonly
  12
• commit
  13
• update_database_schema
  14
• get_operation
  15
• get_system_metrics
  16

This server’s available tools can vary by account, permissions, or configuration. The list shown is not its full runtime catalog.

• official tool reference

  Product-specific Google MCP reference publishes 16 exact tool identifiers in its tools reference.

• official server catalog

  Official Google Cloud catalog lists this product as an available remote MCP server.

• official setup guide

  Google Cloud describes remote MCP client setup, Streamable HTTP transport, supported authentication options, and ADC setup.

• official authentication guide

  Google documents supported identity types and authorization requirements for Google Cloud MCP calls.

Documentation checked date not recorded. Connection has not been runtime tested.