2026-01-14 15:48:52 -08:00
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# BigQuery MCP Toolset Sample
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## Introduction
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This sample agent demonstrates using ADK's `McpToolset` to interact with
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BigQuery's official MCP endpoint, allowing an agent to access and execute
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2026-01-20 14:20:27 -08:00
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tools by leveraging the Model Context Protocol (MCP). These tools include:
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2026-01-14 15:48:52 -08:00
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1. `list_dataset_ids`
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Fetches BigQuery dataset ids present in a GCP project.
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2. `get_dataset_info`
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Fetches metadata about a BigQuery dataset.
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3. `list_table_ids`
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Fetches table ids present in a BigQuery dataset.
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4. `get_table_info`
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Fetches metadata about a BigQuery table.
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5. `execute_sql`
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Runs or dry-runs a SQL query in BigQuery.
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## How to use
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Set up your project and local authentication by following the guide
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[Use the BigQuery remote MCP server](https://docs.cloud.google.com/bigquery/docs/use-bigquery-mcp).
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This agent uses Application Default Credentials (ADC) to authenticate with the
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BigQuery MCP endpoint.
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Set up environment variables in your `.env` file for using
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[Google AI Studio](https://google.github.io/adk-docs/get-started/quickstart/#gemini---google-ai-studio)
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or
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[Google Cloud Vertex AI](https://google.github.io/adk-docs/get-started/quickstart/#gemini---google-cloud-vertex-ai)
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for the LLM service for your agent. For example, for using Google AI Studio you
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would set:
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* GOOGLE_GENAI_USE_VERTEXAI=FALSE
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* GOOGLE_API_KEY={your api key}
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Then run the agent using `adk run .` or `adk web .` in this directory.
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## Sample prompts
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* which weather datasets exist in bigquery public data?
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* tell me more about noaa_lightning
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* which tables exist in the ml_datasets dataset?
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* show more details about the penguins table
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* compute penguins population per island.
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