Osm provides OpenStreetMap integration for MCP, offering users the ability to interact with map data through an MCP interface. It features a web-based map viewer using Leaflet and OpenStreetMap, server-to-client communication via Server-Sent Events (SSE), and a PostgreSQL/PostGIS query interface for OpenStreetMap data. MCP tools enable map control functionalities, such as adding markers and polygons, setting the view, and retrieving the current view.