The Druid MCP Server is a feature-based MCP server built on the Spring AI MCP Server framework. It exposes Tools, Resources, and Prompts organized by distinct Druid management areas (data management, ingestion management, monitoring & health, and security). The server auto-discovers and registers tools, resources, and prompts via annotations, enabling automatic MCP protocol compliance with generated JSON schemas. It supports multiple transports—STDIO, Server-Sent Events (SSE), and Streamable HTTP—with OAuth protection and real-time streaming capabilities. A robust inspector interface (MCP Inspector) shows available tools, resources, and prompts and each category is complemented by example operations and documentation. Prompt customization is supported through prompts.properties with runtime overrides via -D system properties or a custom properties file. The server includes extensive security features (OAuth2 by default, with enterprise SSO options), a read-only mode for safe operations, and a catalog of tools/resources/prompts across core features such as Data Management, Ingestion Management, Monitoring & Health, and Basic Security. It is designed for enterprise Druid operations and AI-assisted workflows, with ready-made configurations and Docker/Maven Central delivery.