@modelcontextprotocol/server-map

Bootstraps a Model Context Protocol server that exposes a CesiumJS-based 3D globe as a tool accessible to LLM clients. The server implements the MCP transport layer (stdio or HTTP) and registers the globe visualization as a callable resource, allowing LLM agents to request map rendering and spatial visualization without direct browser access. Uses CesiumJS's WebGL rendering engine for client-side 3D visualization while the MCP server acts as a coordination layer between LLM context and the visualization client.

Exposes geocoding capabilities (address-to-coordinates and coordinates-to-address) as MCP tools that LLM agents can invoke. The server wraps a geocoding provider (likely OpenStreetMap Nominatim or similar) and translates LLM requests into structured geocoding queries, returning standardized geographic data (latitude, longitude, address components, place names). Implements request batching and caching to reduce API calls and latency for repeated geocoding operations.

Exposes CesiumJS map layers, basemaps, and geographic datasets as MCP resources that clients can query and configure. The server maintains a registry of available layers (satellite imagery, terrain, administrative boundaries, custom GeoJSON layers) and allows LLM agents to request specific layer configurations, enabling dynamic map composition. Uses MCP's resource protocol to advertise available layers and their metadata, allowing clients to discover and apply layers without hardcoding layer names.

Provides MCP tools that allow LLM agents to execute spatial queries (point-in-polygon, distance calculation, bounding box intersection, nearest neighbor search) against geographic datasets. The server implements spatial indexing (likely using a library like Turf.js or PostGIS for complex queries) to efficiently process geometric operations. Agents can invoke these tools to reason about geographic relationships without needing to understand GIS concepts, with the server translating natural language spatial intent into structured queries.

Configures the MCP server to communicate with clients via either stdio (for local/CLI integration) or HTTP (for remote/web clients). The server implements both transport layers, allowing flexible deployment: stdio for tight integration with local LLM tools, HTTP for cloud-based or multi-client scenarios. Handles MCP protocol framing, message serialization (JSON), and connection lifecycle management for both transports, with configurable endpoints and authentication.

Automatically generates MCP-compliant tool schemas for all exposed capabilities (geocoding, spatial queries, layer management) and validates incoming tool invocations against these schemas. The server implements JSON Schema validation for tool parameters, ensuring type safety and providing clear error messages when clients send malformed requests. Schemas are advertised to clients via the MCP tools list, enabling client-side UI generation and parameter validation before sending requests.