The Harper server implements the Model Context Protocol (MCP), offering a standardized way to expose HarperDB data as structured 'Resources'. It seamlessly integrates with the Harper Composable Application Platform, which unifies database, cache, app logic, and messaging into a single runtime. This server enables secure, read-only retrieval of information from Harper tables and custom resources through JSON-RPC calls, supporting features like data filtering and pagination for efficient access within geo-distributed applications.