> ## Documentation Index
> Fetch the complete documentation index at: https://docs.heyhumm.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# BigQuery

> Connect to Google BigQuery data warehouse.

Humm runs read-only SQL queries against your BigQuery datasets. Ask questions about any table your service account can access.

## Tools

| Tool          | Description                                    |
| ------------- | ---------------------------------------------- |
| `EXECUTE_SQL` | Run SQL queries against your BigQuery datasets |

## Google Sheets-Backed Tables

Humm can query BigQuery tables backed by Google Sheets. Make sure the service account has Drive read access when setting up credentials.

## Authentication

<Card title="Service Account" icon="google">
  Google Cloud service account with JSON credentials. Requires BigQuery Data Viewer and BigQuery Job User roles.
</Card>