imply-druid-mcp

A read-only MCP (Model Context Protocol) server for Imply Cloud/Druid databases. Query and explore your Druid data through Claude and other AI assistants.

Features

Supported ✅

• SQL Query Execution
  • Synchronous query execution
  • Asynchronous query execution (for large datasets)
• Query Management
  • Check query status
  • Retrieve query results
  • Cancel running queries
• Table Operations
  • List all tables in project
  • Get table schema details
• Dashboard Operations
  • List all dashboards
  • Get dashboard details
• Data Cube Operations
  • List all data cubes
  • Get data cube details
  • Execute Pivot SQL queries

Not Supported ❌

• Data Ingestion
• Table/Schema Creation or Modification
• User/Permission Management
• Supervisor Management

Tools

Query Tools

Tool	Description
execute_sql_query	Execute a SQL query synchronously and return results immediately
execute_async_query	Execute a SQL query asynchronously for large datasets. Returns a query ID
get_query_results	Retrieve results from an async query using query ID
get_query_status	Check the execution status of an async query
cancel_query	Cancel a running async query

Table Tools

Tool	Description
list_tables	List all tables (datasources) in the Druid project
get_table_schema	Get detailed schema information for a specific table

Dashboard Tools

Tool	Description
list_dashboards	List all dashboards in the Imply project
get_dashboard	Get detailed information about a specific dashboard

Data Cube Tools

Tool	Description
list_data_cubes	List all data cubes in the Imply project
get_data_cube	Get detailed data cube information including dimensions and measures
query_data_cube	Execute Pivot SQL query against a data cube

API Mapping

This MCP server maps to the Imply Polaris API:

MCP Tool	Imply API Endpoint
execute_sql_query	POST /v1/projects/{projectId}/query/sql
execute_async_query	POST /v1/projects/{projectId}/query/sql/statements
get_query_results	GET /v1/projects/{projectId}/query/sql/statements/{queryId}/results
get_query_status	GET /v1/projects/{projectId}/query/sql/statements/{queryId}
cancel_query	DELETE /v1/projects/{projectId}/query/sql/statements/{queryId}
list_tables	GET /v1/projects/{projectId}/tables
get_table_schema	GET /v1/projects/{projectId}/tables/{tableName}
list_dashboards	GET /v1/projects/{projectId}/dashboards
get_dashboard	GET /v1/projects/{projectId}/dashboards/{dashboardId}
list_data_cubes	GET /v1/projects/{projectId}/data-cubes
get_data_cube	GET /v1/projects/{projectId}/data-cubes/{cubeName}
query_data_cube	POST /v0/projects/{projectId}/pivot/data-cube-sql/query

Installation

Using uvx (Recommended)

uvx imply-druid-mcp

Using pip

pip install imply-druid-mcp
imply-druid-mcp

Using pipx

pipx install imply-druid-mcp
imply-druid-mcp

Configuration

Environment Variable	Required	Default	Description
IMPLY_ORGANIZATION	Yes	-	Imply Cloud organization name
IMPLY_REGION	Yes	-	Region (e.g., us-east-1)
IMPLY_CLOUD_PROVIDER	Yes	-	Cloud provider: aws, gcp, or azure
IMPLY_PROJECT_ID	Yes	-	Imply project ID
IMPLY_API_KEY	Yes*	-	Imply API key
IMPLY_ACCESS_TOKEN	Yes*	-	OAuth access token (alternative)
LOG_LEVEL	No	INFO	Logging level
DEFAULT_QUERY_TIMEOUT_MS	No	30000	Default query timeout (ms)
MAX_QUERY_LENGTH	No	10000	Maximum SQL query length

*Either IMPLY_API_KEY or IMPLY_ACCESS_TOKEN is required.

Claude Desktop Setup

Add to your Claude Desktop config file:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "imply-druid": {
      "command": "uvx",
      "args": ["imply-druid-mcp"],
      "env": {
        "IMPLY_ORGANIZATION": "your-org",
        "IMPLY_REGION": "us-east-1",
        "IMPLY_CLOUD_PROVIDER": "aws",
        "IMPLY_PROJECT_ID": "your-project-id",
        "IMPLY_API_KEY": "your-api-key"
      }
    }
  }
}

Usage Examples

User: Show me all tables in my Druid project

Claude: [Uses list_tables]
- wikipedia (datasource)
- events (datasource)
- metrics (datasource)

User: Query the top 10 records from wikipedia table

Claude: [Uses execute_sql_query with "SELECT * FROM wikipedia LIMIT 10"]
[Results displayed]

User: Show me all data cubes

Claude: [Uses list_data_cubes]
- sales_cube: Sales Analytics (source: sales_table)
- events_cube: Events Tracking (source: events)

User: Query the sales data cube for top cities

Claude: [Uses query_data_cube with Pivot SQL syntax]
SELECT "DIM:city" AS "City", MEASURE_BY_ID('total_sales') AS "Sales"
FROM "datacube"."sales_cube"
ORDER BY 2 DESC
LIMIT 10

Development

git clone https://github.com/yeongbin-hwang/imply-druid-mcp.git
cd imply-druid-mcp
pip install -e ".[dev]"

License

MIT License - see LICENSE for details.

Resources

• MCP Protocol
• Imply Cloud Docs
• Apache Druid