BigQuery vs Snowflake

Pick BigQuery if you're already on Google Cloud and want zero-friction warehouse queries from Claude—OAuth2 is one click, and you skip tool setup because the MCP leans on BigQuery's native SQL interface. Pick Snowflake if you need pre-built tooling for common data ops: its 15 tools cover schema inspection, query history, and role management out of the box, which matters when non-SQL users need to ask Claude for table summaries or access audits without writing SELECT statements. For teams running multi-cloud or already paying Snowflake's compute bills, the tooling justifies the slightly heavier config. Switching later costs a weekend of rewriting any custom prompts that reference tool names, plus re-authenticating if you've embedded the MCP in CI pipelines.