Google MCP Toolbox for Databases vs Supabase MCP Server

Google MCP Toolbox for Databases and Supabase MCP Server are both MCP servers but differ in their categories and capabilities. Google MCP Toolbox for Databases (database, cloud) is Google's open-source MCP Toolbox for Databases — multi-database MCP server supporting AlloyDB, Cloud SQL, Spanner, BigQuery, PostgreSQL, MySQL, and more. Enterprise-grade connection pooling, auth, and query tools for production AI database access. while Supabase MCP Server (database, cloud) is Supabase MCP Server connects Cursor, Claude Code, Claude Desktop, Windsurf and other MCP clients to a Supabase project, and the first thing to know is that the personal access token setup most guides still describe is gone. Supabase now runs a hosted server at https://mcp.supabase.com/mcp using OAuth 2.1 with dynamic client registration — you add the URL, your client opens a browser, you pick the organization, and there is no PAT to mint or rotate. For Claude Code that is `claude mcp add --scope project --transport http supabase "https://mcp.supabase.com/mcp"` followed by `/mcp` in a plain terminal (not the IDE extension) to run the auth flow. Three URL query parameters do the real configuration work: `read_only=true` runs every statement as a read-only Postgres role, `project_ref=<id>` scopes the server to one project and drops the account-management tools entirely, and `features=` selects the tool groups. Those groups are database (list_tables, list_extensions, list_migrations, apply_migration, execute_sql), debugging (get_logs across API/Postgres/Edge Functions/Auth/Storage/Realtime, plus get_advisors for security and performance findings), development (get_project_url, get_publishable_keys, generate_typescript_types), Edge Functions (list, get, deploy), account management, docs search, experimental branching on paid plans, and storage — storage is the one group disabled by default. Running Supabase locally with the CLI exposes a reduced server at http://localhost:54321/mcp with no OAuth; self-hosted installs are similar. The npm package `@supabase/mcp-server-supabase` still exists for stdio clients and also exports `createToolSchemas()` so Vercel AI SDK users get typed tool inputs and outputs. Read Supabase's security best-practices page before pointing this at anything with production data — the mutating tools are real..

Choose Google MCP Toolbox for Databases if you need database capabilities and prefer binary installation. Choose Supabase MCP Server if you need database capabilities and prefer remote installation. Consider your specific use case and integration requirements.

Yes, you can use multiple MCP servers together in Claude Desktop, Cursor, VS Code, and other MCP-compatible clients.Google MCP Toolbox for Databases and Supabase MCP Servercan complement each other if their capabilities don't overlap.