{"service": "mcp", "transport": "streamable-http (stateless)", "protocolVersion": "2025-06-18", "serverInfo": {"name": "402milly Pixel Marketplace", "version": "1.0.0"}, "tools": ["get_grid_metadata", "get_tiles_batch", "get_tile_pixels", "get_pixels_by_owner", "get_purchase_requirements", "get_openapi_spec"]}